Chemistry:Ardaite
| Ardaite | |
|---|---|
 Ardaite associated with galena, Madjarovo polymetallic ore deposit, National Museum of Natural History, Bulgaria | |
| General | |
| Category | Mineral |
| Formula (repeating unit) | Pb19Sb13S35Cl7 |
| Strunz classification | 2.LB.30 (10 ed) 2/E.19-20 (8 ed) |
| Dana classification | 02.15.01.01 |
| Crystal system | Monoclinic Unknown space group |
| Identification | |
| Color | Greenish gray or bluish green |
| Mohs scale hardness | 2.5-3 |
| |re|er}} | Metallic |
| Density | 6.44 |
| Pleochroism | Weak |
Ardaite is a very rare sulfosalt mineral with chemical formula Pb19Sb13S35Cl7 in the monoclinic crystal system,[2][3] named after the Arda River, which passes through the type locality.[4] It was discovered in 1978 and approved by the International Mineralogical Association in 1980.[5][6][7] It was the second well-defined natural chlorosulfosalt, after dadsonite.[8]
Greenish gray or bluish green in color, its luster is metallic. Ardaite occurs as 50 µm fine-grained aggregates of acicular crystals associated with galena, pyrostilpnite, anglesite, nadorite, and chlorine-bearing robinsonite and semseyite, in the Madjarovo polymetallic ore deposit in Bulgaria. Ardaite has a hardness of 2.5 to 3 on Mohs scale and a density of approximately 6.44.[2]
The type locality is the Madjarovo polymetallic ore deposit in the Rhodope Mountains.[9][10] Later its occurrence was proved in the Gruvåsen deposit, near Filipstad, Bergslagen, Sweden.[6]
See also
List of minerals recognized by the International Mineralogical Association
References
- ↑ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine 85 (3): 291–320. doi:10.1180/mgm.2021.43. Bibcode: 2021MinM...85..291W.
- ↑ 2.0 2.1 "Information page for Ardaite". mindat.org. http://www.mindat.org/min-320.html.
- ↑ "Information page for Ardaite". webmineral.com. http://webmineral.com/data/Ardaite.shtml.
- ↑ "Information page for Ardaite". Handbook of Mineralogy. http://www.handbookofmineralogy.org/pdfs/ardaite.pdf.
- ↑ Breskovska, V. V.; Mozgova, N. N.; Bortnikov, N. S.; Gorshkov, A. I.; Tzepin, A. I. (1982), "Ardaite, a new lead-antimony chlorsulphosalt", Mineral. Mag. 46 (340): 357–361, doi:10.1180/minmag.1982.046.340.10, Bibcode: 1982MinM...46..357B, http://rruff.geo.arizona.edu/doclib/mm/vol46/MM46_357.pdf
- ↑ 6.0 6.1 Burke, E.A.J.; Kieft, C.; Zakrzewski, M.A. (1981), "The Second Occurrence of Ardaite", Canadian Mineralogist 19: 419–422, http://rruff.geo.arizona.edu/doclib/cm/vol19/CM19_419.pdf, retrieved 3 May 2018
- ↑ Dunn, Pete; Fleischer, Michael (1983), "New Mineral Names", American Mineralogist 68: 643, http://www.minsocam.org/ammin/AM68/AM68_642.pdf
- ↑ Zelenski, Michael; Zunic, Tonci Balic; Bindi, Luca; Caravelli, Anna; Makovicky, Emil; Pinto, Daniela; Vurro, Filippo (2006), "First Occurrence of Iodine in Natural Sulfosalts: The Case of Mutnovscite", American Mineralogist 91: 21–28, doi:10.2138/am.2006.1870, http://rruff.geo.arizona.edu/doclib/am/vol91/AM91_21.pdf
- ↑ "Collection of Minerals". National Natural History Museum, Sofia, Bulgaria. http://www.nmnhs.com/exhibitions-hall-1-mineralogy-en.html.
- ↑ "Madjarovo deposit". mindat.com. http://www.mindat.org/loc-460.html.
External links
- Gaines, Richard V.; Skinner, H. Catherine W.; Foord, Eugene E.; Mason, Brian; Rosenzweig, Abraham; King, Vendall (1997). Dana's New Mineralogy: The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana. New York, Chichester, Weinheim, Brisbane, Singapore, Toronto: John Wiley & Sons, Inc.. p. 142. ISBN 9780471193104. https://archive.org/details/danasnewmineralo0000dana/page/n5/mode/2up.
 |  |
