Quick
Search: 		  
advanced search
 GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help 
European Journal of Mineralogy Email Content Delivery
JOURNAL HOME HELP FEEDBACK/COMMNET SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
European Journal of Mineralogy; June 2001; v. 13; no. 3; p. 605-610; DOI: 10.1127/0935-1221/2001/0013-0605
© 2001 E. Schweizerbart'sche Verlagsbuchhandlung Science Publishers
This Article
Right arrow Abstract
Right arrow Figures Only
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via ISI Web of Science (11)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by ORLANDI, P.
Right arrow Articles by Palvadeau, P.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation

Articles

Lead-antimony sulfosalts from Tuscany (Italy). III. Pillaite, Pb9Sb10S23ClO0.5, a new Pb-Sb oxy-chloro-sulfosalt, from Buca della Vena mine

Paolo ORLANDI1,*, Yves MOËLO2, Alain MEERSCHAUT2 and Pierre Palvadeau2

1 Dipartimento di Scienze della Terra, Università di Pisa, Via S. Maria 53, I-56126 Pisa, Italy
2 Laboratoire de Chimie des Solides, Institut des Matériaux J. Rouxel, UMR CNRS 6502, 2 rue de la Houssinière, 44322 Nantes Cedex 3, France

* e-mail: orlandi{at}dst.unipi.it


   Abstract
Top
 Abstract
Introduction
 1. Occurrence and paragenesis
 2. Appearance and physical...
 3. Chemistry
 4. Crystallography and crystal...
 5. Conditions of formation
 Conclusion
 Acknowledgements
 References
 
The new mineral pillaite, Pb9Sb10S23ClO0.5, an oxy-chloro-sulfosalt, has been found at Buca della Vena mine in the Apuan Alps, northern Tuscany, Italy. It crystallized in small fractures of dolomitic lenses in massive Fe-Ba ore, together with many Pb-Sb sulfosalts, among which the oxy-sulfosalt scainiite. Pillaite occurs as black acicular crystals with metallic lustre, elongated // [010], up to 1 cm long and less than 0.1 mm thick. The mineral is brittle, opaque; VHN50 = 175 kg/mm2, dcalc = 5.77 g/cm3. In reflected light it shows a weak anisotropy and bireflectance, and rare red internal reflections. Electron-microprobe analysis (wt. %): Pb 49.07, Sb 30.36, Cu 0.16, S18.73, Cl 0.98, O (crystal structure) 0.21, Sum 99.51. Empirical formula: Pb9.30Sb9.80Cu0.10S22.94Cl1.06O0.5; ideally: Pb9Sb10S23ClO0.5. Pillaite is monoclinic, space group C2/m, a = 49.65(3) Å; b = 4.150(4) Å; c = 21.91(1) Å; ß = 99.76(5)° V = 4449(10) Å3; Z = 4. The strongest lines of the X-ray powder diffraction pattern are (d (Å), Iobs, hkl): 4.14 (27) (205), 3.88 (20) (1201), 3.621 (26) (406,1202), 3.548 (40) (1204, 1005), 3.480 (100) (206), 3.249 (24) (1205), 2.956 (47) (515, 1601, 1206, 514), 2.780 (22) (1310, 515). Pillaite belongs to the zinkenite group. Like for dadsonite and other chloro-sulfides, the formation of this mineral is related to a high chlorinity of the hydrothermal solution, but also to the oxygen fugacity, as for scainiite.

Key-words: pillaite, new mineral, sulfosalt, lead, antimony, oxy-chloro-sulfide, Tuscany, Italy.


   Introduction
Top
 Abstract
 Introduction
1. Occurrence and paragenesis
 2. Appearance and physical...
 3. Chemistry
 4. Crystallography and crystal...
 5. Conditions of formation
 Conclusion
 Acknowledgements
 References
 
The Buca della Vena Fe-Ba deposit shows a complex mineralogy, with many rare minerals (Orlandi & Checchi, 1986). Recently two new Pb-Sb sulfosalts were discovered; the first one, scainiite, Pb14Sb30S54O5, has been described by Orlandi et al. (1999). This study presents the second one, pillaite, Pb9Sb10S23ClO0.5. This new mineral species and its name have been approved by the IMA-CNMMN (vote n° 97–042). The name of this mineral honours the late Professor Leopoldo Pilla (Venafro, 1805 - Curtatone, 1848), one of the most important Italian vulcanologist and mineralogist in his time. In 1842 he hold the first chair of mineralogy and geology in the Pisa University; he constituted an important collection of minerals and rocks from Monte Somma, Vesuvius, now preserved in the Natural History Museum of Pisa University. The type material of pillaite has been deposited at Museo di Storia Naturale e del Territorio, Università di Pisa, Via Roma 103, I-56011 Calci (PI), Italy (catalogue numbers: 15524–15525).


   1. Occurrence and paragenesis
Top
 Abstract
 Introduction
 1. Occurrence and paragenesis
2. Appearance and physical...
 3. Chemistry
 4. Crystallography and crystal...
 5. Conditions of formation
 Conclusion
 Acknowledgements
 References
 
Pillaite was found at the Buca della Vena mine, a small Fe-Ba deposit in the Apuan Alps (northern Tuscany, Italy), from which another new Pb-Sb sulfosalt, scainiite, has been described (Orlandi et al., 1999); for all the informations on the geology of the mine we refer to this article. Pillaite occurs in thin late extensional calcite veins, which cut either the Ba-Fe ore body, or the phyllites and dolomitic limestones in which the ore body is hosted.

In these veins pillaite is associated with many other acicular lead sulfosalts: scainiite, zinkenite, boulangerite, robinsonite, tintinaite, sorbyite and additional still uncompletely characterized compounds. The morphological features of all these acicular sulfosalts are very similar, and a distinction between the different minerals is not possible macroscopically, but only by testing every crystal by X-ray diffraction methods. Other minerals associated with pillaite are sphalerite, cinnabar, galena, andorite, bournonite, tetrahedrite, chal-costibite, gersdorffite, barite, cerussite and stibi-conite.


   2. Appearance and physical properties
Top
 Abstract
 Introduction
 1. Occurrence and paragenesis
 2. Appearance and physical...
3. Chemistry
 4. Crystallography and crystal...
 5. Conditions of formation
 Conclusion
 Acknowledgements
 References
 
Pillaite occurs as small acicular crystals (Fig. 1), of black color and metallic lustre, elongated // [010], up to 1 cm long and 0.1 mm thick. These fibers are brittle, with irregular fracture, and no distinct cleavage; streak black to dark brown. Density could not be measured, due to the small size of individual crystals; dcalc = 5.77 g/cm3.


Figure 1
View larger version (100K):
[in this window]
[in a new window]

  		Fig. 1. Scanning electron microscope image of pillaite fibers.

 
In reflected light, pillaite shows weak anisotropy and bireflectance, and rare red internal reflections; pleochroism was not observed. Specular reflectance in air and oil has been measured from 400 to 800 nm on a unique sub-isotropic section (40 x 15 µm) perpendicular to the elongation (Table 1). Fig. 2 represents the two reflectance curves of pillaite, in comparison to those of dadsonite (Cervelle et al., 1979 and 1993). Reflectance curves are very similar, but with reflectance values of pillaite about 4 % below those of the minimum reflectance curves of dadsonite. This general decrease of the reflectance values may be due principally to the higher chlorine content of pillaite, together with the presence of a small amount of oxygen: these two anions, more electro-negative than sulfur, will slightly increase the optical band gap of pillaite relatively to that of dadsonite, with a general shift of the optical spectrum toward higher energies, that is toward shorter wavelengths.


View this table:
[in this window]
[in a new window]

  		Table 1. Reflectance (%) of pillaite (sub-isotropic basal section) from 400 to 800 nm in air and oil.

 

Figure 2
View larger version (11K):
[in this window]
[in a new window]

  		Fig. 2. Reflectance curves of pillaite in air and oil.

 
The calculated refractive index n is around 4, but with aberrant negative values of k2. Due to the minute size of the selected fiber section, the selected area for measurement in oil was relatively large (and larger than in air), and some relief effect at the contact with the resin may have induced a small shift of reflectance data in oil, thus producing wrong values of k2 (more sensitive than the refractive index n to measurement error - Embrey & Criddle, 1978).


   3. Chemistry
Top
 Abstract
 Introduction
 1. Occurrence and paragenesis
 2. Appearance and physical...
 3. Chemistry
4. Crystallography and crystal...
 5. Conditions of formation
 Conclusion
 Acknowledgements
 References
 
Two samples were analysed with distinct electron microprobes (Table 2). For analysis No. 2 (mean of 13 spot analyses - same crystal as for reflectance measurements and crystal structure study), dadsonite (ideally: 0.36 wt.% Cl - Moëlo, 1979) was used together with pyromorphite as a secondary standard for Cl; it clearly revealed a chlorine content of 0.98 wt.% in pillaite. The presence of oxygen was not checked, and this anion was detected laterly through the reexamination of the crystal structure (Meerschaut et al., accepted). There is half an oxygen atom p.f.u., that is around 0.2 wt.% oxygen, corresponding to the detection limit of EPMA (Orlandi et al., 1999). Taking into account the crystal structure, the empirical formula of pillaite is Pb9.30Sb9.80Cu0.10S22.94Cl1.06O 0.5 (Table 2, No. 2). After subtraction of minor Cu (Cu + Pb -> Sb), and of the excess of Cl over 1 (Pb + Cl -> Sb + S), the reduced formula is Pb9.14Sb9.96S23ClO0.5, and the ideal structural formula Pb9Sb10S23ClO0.5 (which contains 0.93 wt.% chlorine and 0.21 wt.% oxygen).


View this table:
[in this window]
[in a new window]

  		Table 2. Electron microprobe analysis of pillaite, compared to those of "mineral C" (Moëlo et al., 1989) and synthetic Phase V (Bortnikov et al., 1979).

 
Pillaite is the first known oxy-chloro-sulfosalt, and the fourth well-defined natural chloro-sulfo-salt, after dadsonite (Moëlo, 1979), ardaite (Breskovska et al., 1982) and playfairite (Jambor et al., 1982; Moëlo, 1983). There exist other natural or synthetic Pb-Sb chloro-sulfosalts with a low chlorine content (Moëlo et al., 1989): An uncom-pletely studied chlorine-bearing sulfosalt, "mineral C", from the Pb-Sb sulfosalt deposit of Les Cougnasses (Hautes-Alpes, France), is very close to pillaite. It contains 0.90 wt.% Cl, and its structural formula, calculated on the basis of S + Cl = 24 at., gives Pb9.01(Sb, As)9.44S23.04Cl0.96 (after subtraction of minor metals, Cu (see above), and Ag according to Ag + Sb -> 2 Pb). Nevertheless, the X-ray powder pattern for "Mineral C" is significantly different from that of pillaite. Due to the very fine and heterogeneous nature of the product from Les Cougnasses, it is not possible to decide whether "mineral C" is effectively pillaite (but with an X-ray powder diagram obtained from a close, but different area of the studied sample), or a distinct, unknown phase. The other closest natural chloro-sulfosalt is dadsonite, Pb23Sb25S60Cl, with a lower Cl content (~ 0.4 wt.%). A synthetic Phase V, obtained at 350°C by Bortnikov et al. (1979), is richer in Cl and Pb, with the hypothetic structural formula Pb9.49Sb9.66S22.55Cl1.45 (1.26 wt.%Cl).


   4. Crystallography and crystal chemistry
Top
 Abstract
 Introduction
 1. Occurrence and paragenesis
 2. Appearance and physical...
 3. Chemistry
 4. Crystallography and crystal...
5. Conditions of formation
 Conclusion
 Acknowledgements
 References
 
Table 3 gives the X-ray powder pattern of pillaite. Single-crystal studies (Weissenberg, precession, 4-circle diffractometer and Image Plate system) indicated first (IMA proposal) a triclinic symmetry, space group P1, with a = 24.90(3) Å, 2b = 8.28(1) Å, c = 21.92(3) Å, a= 90.19(7)°, ß = 99.67(6)°, {gamma} = 94.86(9)°, V = 4438(18) Å3 and Z = 4. Nevertheless, reexamination of the crystal structure, with the detection of an additional atom position, half-filled by oxygen, led to a monoclinic symmetry, with space group C2/m, and a = 49.65(3) Å, b = 4.150(4) Å c = 21.91(1) Å, ß = 99.76(5)°, V = 4449(10) Å3 and Z = 4.


View this table:
[in this window]
[in a new window]

  		Table 3. X-ray powder diffraction pattern of pillaite.

 
Like for dadsonite (Moëlo, 1979), a Bragg photograph obtained by rotating the crystal along the elongation axis reveals a very weak 2b superstructure (Fig. 3). However, the refinement of unit-cell parameters from the powder diagram could be performed only on the basis of the reduced b parameter.


Figure 3
View larger version (38K):
[in this window]
[in a new window]

  		Fig. 3. Bragg photograph obtained by rotation along the elongation axis b on pillaite single crystal, hkl indexing according to the weak 2b superstructure.

 
The crystal structure of pillaite will be presented in a separate paper (Meerschaut et al., accepted); Fig. 4 shows the projection of half of the unit cell along b. This crystal structure shows a specific chlorine site, at the center of a pseudo-ternary axis. The chlorine atom is bonded only with Pb atoms, in a trigonal prismatic coordination. On the contrary, there is an oxygen position, half-filled, which is bonded essentially with antimony, like in the scainiite structure (Moëlo et al., 2000). This selectivity of the chemical bonding of chlorine and oxygen with Pb or Sb, respectively, reflects the stability of PbCl2 (cotunnite) and Sb2S2O (kermesite) under natural conditions.


Figure 4
View larger version (66K):
[in this window]
[in a new window]

  		Fig. 4. Projection along b of the crystal structure of pillaite (half unit cell a/2 x c). In order of decreasing size: Pb (medium grey), (Pb, Sb) (cross-hatched), Sb (light grey), Cl (light grey), S (white) and O (black). Oxygen position is half-filled.

 
Without oxygen, the initial structural formula (IMA proposal) was non-stoichiometric, Pb9Sb9.7S23Cl. Adding the half-filled oxygen position, the final structural formula, Pb9Sb10S23 ClO0.5, gives an integer for Sb, and, taking into account the 2b superstructure, one obtains the sto-ichiometric formula Pb18Sb20S46Cl2O.

Like scainiite (Moëlo et al., 2000), pillaite belongs to the group of lead sulfosalts with rodbased, cyclically twinned structures (zinkenite group, Makovicky, 1985, 1993), distinct from the boulangerite family of "rod-layer sulfosalts", to which belongs dadsonite (Makovicky, 1993).

Initially (IMA proposal), the analogy of pillaite with a Pb-Sb fibrous sulfosalt from Mexico ("plumosite" - Fabregat, 1964) was pointed out: ideal formula (Pb, Fe)5Sb4S11; monoclinic, space group C2/m; unit-cell parameters a = 22.16, b = 24.63, c = 8.252 Å, ß = 100.97°, V = 4422 Å3. But here b and c axes are permuted relatively to those of pillaite. It was finally possible to find the original sample of this "plumosite" (Dr. M.-G. Villasenor-Cabral, Mexico University), but the unit cell of one fiber extracted from this sample corresponded exactly to that of boulangerite: a = 21.57, b = 23.51, c = 8.066 Å, ß = 100.71°. As the powder pattern of this "plumosite" is close to that of boulangerite (Berry & Thompson, 1962), clearly Fabregat's "plumosite" is essentially boulangerite. Discrepancy between measured and theoretical unit-cell parameters is difficult to explain: bias due to a calibration error, or selection by Dr. Fabregat of a single crystal distinct from dominant boulangerite? Nevertheless, for the same monoclinic symmetry, permutation between b and c relatively to pillaite would impose permutation between ß and {gamma} which is not the case for "plumosite" of Fabregat.


   5. Conditions of formation
Top
 Abstract
 Introduction
 1. Occurrence and paragenesis
 2. Appearance and physical...
 3. Chemistry
 4. Crystallography and crystal...
 5. Conditions of formation
Conclusion
 Acknowledgements
 References
 
Pillaite has crystallized together with scainiite and other Pb-Sb sulfosalts, at relatively high temperature (over 300°C), in narrow fO2/fS2 conditions related to the pyrite-magnetite-hematite buffer (Orlandi et al., 1999). As for other Pb-Sb chloro-sulfosalts (Moëlo, 1979; Moëlo et al., 1989), the formation of pillaite implies a relatively high chlorinity of the hydrothermal solution, but also a specific oxygen fugacity controlled by the pyrite-magnetite-hematite buffer.

Pillaite, Pb9Sb10S23ClO0.5, and dadsonite, Pb23Sb25S60Cl, have very close Pb/Sb atomic ratios (ideally 0.90 and 0.92, respectively), but differ by a higher Cl content for pillaite (1 wt.% against 0.4 wt.%), together with minor (but critical) oxygen. In nature, the formation of pillaite, like that of ardaite (~ 4 wt.% Cl - Breskovska et al., 1982), would imply a higher chlorinity of the parent hydrothermal solution, and will be thus more difficult than that of dadsonite. Nevertheless, one may expect to find this oxy-chloro-sulfosalt in some parageneses containing dadsonite.


   Conclusion
Top
 Abstract
 Introduction
 1. Occurrence and paragenesis
 2. Appearance and physical...
 3. Chemistry
 4. Crystallography and crystal...
 5. Conditions of formation
 Conclusion
Acknowledgements
 References
 
Pillaite, like scainiite, is a new lead-antimony sulfosalt belonging to the zinkenite group. In this new species, two minor anions, chlorine and oxygen, play an essential role for the stabilization of the crystal structure. The discovery of pillaite and scainiite enlarges the research field for new lead sulfosalts. In both species, the weight percentage of the minor anions (Cl and O) is very low, and may be easily overlooked in a routine chemical analysis; under the ore microscope their optical properties are very close to that of other lead sulfosalts. Thus, careful single-crystal X-ray study coupled with detailed electron-microprobe analysis is the only way to detect such new compounds in nature.


   Acknowledgements
Top
 Abstract
 Introduction
 1. Occurrence and paragenesis
 2. Appearance and physical...
 3. Chemistry
 4. Crystallography and crystal...
 5. Conditions of formation
 Conclusion
 Acknowledgements
References
 
We are grateful to Prof. Dr. S. Graeser and Dr. T. Witzke for their constructive reviews. We sincerely thank Dr. M.-G. Villasenor-Cabral (Mexico University), who kindly sent to us the original "plumosite" sample of Dr. Fabregat. We also thank O. Rouer (CNRS Orléans), Prof. G. Vezzalini and Dr. S. Bigi (Dipartmento di Scienze della Terra, Modena) for microprobe chemical analyses, and Dr. S. Conforti, mineral collector, who kindly gave us the first samples of pillaite for study.

Received 2 March 2000
Modified version received 7 November 2000
Accepted 23 January 2001


   References
Top
 Abstract
 Introduction
 1. Occurrence and paragenesis
 2. Appearance and physical...
 3. Chemistry
 4. Crystallography and crystal...
 5. Conditions of formation
 Conclusion
 Acknowledgements
 References
 
Berry, L.G. & Thompson, R.M. (1962): X-ray powder data for ore minerals: The Peacock Atlas. Geol. Soc. Amer. Memoir, 85, 309 p.

Bortnikov, N.S., Mozgova, N.N., Tsepin, A.I., Breskovska, V.V. (1979): First synthesis experiment of lead chloro-sulfoantimonites. Dok. Akad. Nauk SSSR,244, 955–958 (in Russian).

Breskovska, V.V., Mozgova, N.N., Bortnikov, N.S., Gorshov, A.I., Tsepin, A.I. (1982): Ardaite - a new lead-antimony chlorosulphosalt. Mineral. Mag., 46, 357–361.[CrossRef][ISI][GeoRef]

Cervelle, B., Cesbron, F., Sichère, M.-C., Dietrich, J. (1979): La chalcostibite et la dadsonite de Saint-Pons, Alpes de Haute-Provence, France. Can. Mineral., 17, 601–605.[Abstract/Free Full Text][GeoRef]

Cervelle, B., Cesbron, F., Sichère, M.-C., Dietrich, J. (1993): Dadsonite. in "Quantitative Data File for ore minerals (QDF3)". A. J Criddle & C. J. Stanley ed. (IMA-COM). Chapman & Hall, London.

Embrey, P.G. & Criddle, A.J. (1978): Error problems in the two-media method of deriving the optical constants n and k from measured reflectances. Am. Mineral., 63, 853–862.[Abstract][ISI][GeoRef]

Fabregat, F.J. (1964): Revisión critica de los minerales mexicanos. 2. Plumosita. Univ. Nacion. Auton. de Mexico ed., Bull. 72, 71 p.

Jambor, J.L., Laflamme, J.H.G., Walker, D.A. (1982): A re-examination of the Madoc sulfosalts. The Mineralogical Record, 12, 93–100.

Makovicky, E. (1985): Cyclically twinned sulphosalt structures and their approximate analogues. Z. Kristallogr., 173, 1–23.

Makovicky, E. (1993): Rod-based sulphosalt structures derived from the SnS and PbS archetypes. Eur. J. Mineral., 5, 545–591.[Abstract/Free Full Text][ISI][GeoRef]

Moëlo, Y. (1979): Quaternary compounds in the system Pb-Sb-S-Cl: dadsonite and synthetic phases. Can. Mineral., 17, 595–600.[Abstract/Free Full Text][GeoRef]

Moëlo, Y. (1983): Conditions naturelles de formation des sul fosels de Pb/Sb. Signification métallogénique. in "Séries Documents du BRGM", BRGM ed., Orléans, 55, 624 p.

Moëlo, Y., Balitskaya, O., Mozgova, N., Sivtsov, A. (1989): Chloro-sulfosels de l'indice plombo-antimonifère des Cougnasses (Hautes-Alpes). Eur. J. Mineral., 1, 381–390.[Abstract/Free Full Text][ISI][GeoRef]

Moëlo, Y., Meerschaut, A., Orlandi, P., Palvadeau, P. (2000): Lead-antimony sulfosalts from Tuscany (Italy). II. Crystal structure of scainiite, Pb14Sb30S54O5, an expanded monoclinic derivative of hexagonal Ba~12Bi~24S48. Eur. J. Mineral., 12, 835–846.[Abstract/Free Full Text][CrossRef][ISI][GeoRef]

Orlandi, P. & Checchi, F. (1986): The Buca della Vena mine, Tuscany, Italy. The Mineralogical Record, 17, 261–268.[GeoRef]

Orlandi, P., Moëlo, Y., Meerschaut, A., Palvadeau, P. (1999): Lead-antimony sulfosalts from Tuscany (Italy). I. Scainiite, Pb14Sb30S54O5, the first Pb-Sb oxy-sulfosalt, from Buca della Vena mine. Eur. J. Mineral., 11, 949–954.[Abstract/Free Full Text][ISI][GeoRef]




This article has been cited by other articles:


Home page
 Eur J MineralHome page
Y. Moelo, E. Makovicky, N. N. Mozgova, J. L. Jambor, N. Cook, A. Pring, W. Paar, E. H. Nickel, S. Graeser, S. Karup-Moller, et al.
Sulfosalt systematics: a review. Report of the sulfosalt sub-committee of the IMA Commission on Ore Mineralogy
European Journal of Mineralogy, February 1, 2008; 20(1): 7 - 46.
[Abstract] [Full Text] [PDF]

Home page
 Eur J MineralHome page
P. Orlandi, Y. Moelo, I. Campostrini, and A. Meerschaut
Lead-antimony sulfosalts from Tuscany (Italy). IX. Marrucciite, Hg3Pb16Sb18S46, a new sulfosalt from Buca della Vena mine, Apuan Alps: Definition and crystal structure
European Journal of Mineralogy, March 1, 2007; 19(2): 267 - 279.
[Abstract] [Full Text] [PDF]

Home page
 American MineralogistHome page
M. Zelenski, T. Balic-Zunic, L. Bindi, A. Garavelli, E. Makovicky, D. Pinto, and F. Vurro
First occurrence of iodine in natural sulfosalts: The case of mutnovskite, Pb2AsS3(I,Cl,Br), a new mineral from the Mutnovsky volcano, Kamchatka Peninsula, Russian Federation
American Mineralogist, January 1, 2006; 91(1): 21 - 28.
[Abstract] [Full Text] [PDF]

Home page
 Can MineralHome page
P. Orlandi, A. Meerschaut, Y. Moelo, P. Palvadeau, and P. Leone
LEAD ANTIMONY SULFOSALTS FROM TUSCANY (ITALY). VIII. ROUXELITE, Cu2HgPb22Sb28S64(O,S)2, A NEW SULFOSALT FROM BUCA DELLA VENA MINE, APUAN ALPS: DEFINITION AND CRYSTAL STRUCTURE
Can Mineral, June 1, 2005; 43(3): 919 - 933.
[Abstract] [Full Text] [PDF]

Home page
 Can MineralHome page
A. Garavelli, N. N. Mozgova, P. Orlandi, E. Bonaccorsi, D. Pinto, Y. MoeLo, and Y. S. Borodaev
RARE SULFOSALTS FROM VULCANO, AEOLIAN ISLANDS, ITALY. VI. VURROITE, Pb20Sn2(Bi,As)22S54Cl6, A NEW MINERAL SPECIES
Can Mineral, April 1, 2005; 43(2): 703 - 711.
[Abstract] [Full Text] [PDF]

Home page
 Eur J MineralHome page
P. ORLANDI, Y. MOELO, A. MEERSCHAUT, P. PALVADEAU, and P. LEONE
Lead-antimony sulfosalts from Tuscany (Italy). VI. Pellouxite, ~ (Cu,Ag)2Pb21Sb23S55ClO, a new oxy-chloro-sulfosalt from Buca della Vena mine, Apuan Alps
European Journal of Mineralogy, October 1, 2004; 16(5): 839 - 844.
[Abstract] [Full Text] [PDF]

Home page
 Eur J MineralHome page
P. PALVADEAU, A. MEERSCHAUT, P. ORLANDI, and Y. MOELO
Lead-antimony sulfosalts from Tuscany (Italy). VII. Crystal structure of pellouxite, ~ (Cu,Ag)2Pb21Sb23S55ClO, an expanded monoclinic derivative of Ba12Bi24S48 hexagonal sub-type (zinkenite group)
European Journal of Mineralogy, October 1, 2004; 16(5): 845 - 855.
[Abstract] [Full Text] [PDF]

Home page
 Eur J MineralHome page
P. ORLANDI, A. MEERSCHAUT, P. PALVADEAU, and S. MERLINO
Lead-antimony sulfosalts from Tuscany (Italy). V. Definition and crystal structure of moeloite, Pb6Sb6S14(S3), a new mineral from the Ceragiola marble quarry
European Journal of Mineralogy, June 1, 2002; 14(3): 599 - 606.
[Abstract] [Full Text] [PDF]

Home page
 Can MineralHome page
J. A. Mandarino
NEW MINERALS
Can Mineral, October 1, 2001; 39(5): 1473 - 1502.
[Full Text] [PDF]

Home page
 Can MineralHome page
R. F. Martin and W. H. Blackburn
ENCYCLOPEDIA OF MINERAL NAMES: SECOND UPDATE
Can Mineral, August 1, 2001; 39(4): 1199 - 1218.
[Full Text] [PDF]

Home page
 Eur J MineralHome page
A. MEERSCHAUT, P. PALVADEAU, Y. MOELO, and P. ORLANDI
Lead-antimony sulfosalts from Tuscany (Italy). IV. Crystal structure of pillaite, Pb9Sb10S23CIO0.5, an expanded monoclinic derivative of hexagonal Bi(Bi2S3)9I3, from the zinkenite group
European Journal of Mineralogy, August 1, 2001; 13(4): 779 - 790.
[Abstract] [Full Text] [PDF]

This Article
Right arrow Abstract
Right arrow Figures Only
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via ISI Web of Science (11)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by ORLANDI, P.
Right arrow Articles by Palvadeau, P.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation

JOURNAL HOME HELP FEEDBACK/COMMNET SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2008 by E. Schweizerbart'sche Verlagsbuchhandlung Science Publishers