Mawsonite
| Mawsonite | |
|---|---|
| General | |
| Category | Sulfosalt minerals |
| Formula (repeating unit) | Cu6Fe2SnS8 |
| IMA symbol | Maw[1] |
| Strunz classification | 2.CB.20 |
| Crystal system | Tetragonal |
| Crystal class | Scalenohedral (42m) H-M symbol:(42m) |
| Space group | P4m2 |
| Unit cell | a = 7.603 Å, c = 5.358 Å, Z = 1; V = 309.72 Å3 |
| Identification | |
| Color | Brownish orange |
| Crystal habit | Exsolutiongrains withinbornite |
| Mohs scalehardness | 3.5-4 |
| Luster | Metallic |
| Diaphaneity | Opaque |
| Specific gravity | 4.65 (calculated) |
| Pleochroism | Strong |
| Common impurities | Zn, Se |
| Other characteristics | Magnetic |
| References | [2][3][4] |
Mawsoniteis a brownish orangesulfosalt mineral,containingcopper,iron,tin,andsulfur:Cu6Fe2SnS8.[2]
Discovery and occurrence
[edit]It was first described in 1965 for occurrences in the Royal George mine, Swinton,Tingha,Hardinge County,New South Wales;and the North Lyell mine,Mount LyellMine,Queenstown,Tasmania.[5]
It was named after Australian geologist and Antarctic explorer,Sir Douglas Mawson(1882–1958).[2]It occurs withinhydrothermalcopper deposits in alteredvolcanic rocks.It also occurs inskarndeposits and as disseminations in alteredgranites.It occurs in association withbornite,pyrite,chalcopyrite,chalcocite,digenite,idaite,stannite,stannoidite,pyrrhotite,pentlandite,tennantite,enargite,luzonite–famatinite,kiddcreekite,mohite,nativebismuth,galenaandsphalerite.[3]
References
[edit]- ^Warr, L.N. (2021)."IMA–CNMNC approved mineral symbols".Mineralogical Magazine.85(3): 291–320.Bibcode:2021MinM...85..291W.doi:10.1180/mgm.2021.43.S2CID235729616.
- ^abcMawsonite on Mindat.org
- ^abMawsonite in the Handbook of Mineralogy
- ^Mawsonite data on Webmineral
- ^page 66 ofTasmania. Department of Mines; Petterd, W. F. (William Frederick). Catalogue of mineral of Tasmania; Geological Survey of Tasmania (1972),"Catalogue of the minerals of Tasmania",Mineralogical Magazine,38(299) (Rev. and amended 1969 ed.), Hobart (published 1970): 901,Bibcode:1972MinM...38..901E,doi:10.1180/minmag.1972.038.299.19,S2CID129794143,retrieved18 April2017
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