Chemistry:Hawleyite
From HandWiki
Short description: Sulfide mineral
| Hawleyite | |
|---|---|
 Orange-yellow earthy coating | |
| General | |
| Category | Sulfide mineral |
| Formula (repeating unit) | CdS |
| Strunz classification | 2.CB.05a |
| Crystal system | Cubic |
| Crystal class | Hextetrahedral (43m) H-M symbol: (4 3m) |
| Space group | F43m |
| Unit cell | a = 5.818 Å; Z = 4 |
| Structure | |
| Jmol (3D) | Interactive image |
| Identification | |
| Color | Bright yellow |
| Crystal habit | Powdery massive |
| Mohs scale hardness | 2.5–3 |
| |re|er}} | Metallic |
| Streak | Light yellow |
| Diaphaneity | Translucent to opaque |
| Specific gravity | 4.87 |
| References | [1][2][3] |
Hawleyite is a rare sulfide mineral in the sphalerite group, dimorphous and easily confused with greenockite. Chemically, it is cadmium sulfide, and occurs as a bright yellow coating on sphalerite or siderite in vugs, deposited by meteoric water.[3]
It was discovered in 1955 in the Hector-Calumet mine, Keno-Galena Hill area, Yukon Territory and named in honour of mineralogist James Edwin Hawley (1897–1965), a professor at Queen's University in Ontario, Canada .[2][1]
See also
References
- ↑ 1.0 1.1 MinDAT
- ↑ 2.0 2.1 Webmineral
- ↑ 3.0 3.1 Handbook of Mineralogy
- ↑ 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. https://www.cambridge.org/core/journals/mineralogical-magazine/article/imacnmnc-approved-mineral-symbols/62311F45ED37831D78603C6E6B25EE0A.
 |  |
