| Wyartite | |
|---|---|
| General | |
| Category | Carbonate minerals |
|
Formula (repeating unit) | CaU5+ (UO 2) 2(CO 3)O 4(OH)·7H2O |
| IMA symbol | Wya [1] |
| Strunz classification | 5.EA.15 |
| Crystal system | Orthorhombic |
| Crystal class | Disphenoidal (222) Space group: (222) |
| Space group | P212121 |
| Identification | |
| Color | black, violet-black (fresh); yellowish brown, greenish brown (exposed) |
| Luster | vitreous, sub-metallic, dull |
| Diaphaneity | transparent, translucent, opaque |
| Other characteristics |
Radioactive |
| References | [2] [3] |
Wyartite CaU5+
(UO
2)
2(CO
3)O
4(OH)·7H2O is a
uranium bearing
mineral named after
Jean Wyart (1902–1992), mineralogist at the
Sorbonne,
Paris. It has greenish-black, black, or violet-black, translucent to opaque orthorhombic crystals.
[4] It has a hardness of 3 to 4 on the
Mohs scale. Its other names are ianthinite (of Bignand), wyartit and wyartita. It belongs to the
uranium carbonate group of minerals. It is found next to
rutherfordine in
Shinkolobwe,
Shaba,
Zaire.
[4]
Determination of the structure of wyartite provided the first evidence for a pentavalent uranium mineral. Like all uranium minerals it is radioactive.
- ^ 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. S2CID 235729616.
- ^ Mindat
- ^ Mineralienatlas
- ^ a b "Wyartite Mineral Data". Webmineral.com. Retrieved 25 February 2021.
| Wyartite | |
|---|---|
| General | |
| Category | Carbonate minerals |
|
Formula (repeating unit) | CaU5+ (UO 2) 2(CO 3)O 4(OH)·7H2O |
| IMA symbol | Wya [1] |
| Strunz classification | 5.EA.15 |
| Crystal system | Orthorhombic |
| Crystal class | Disphenoidal (222) Space group: (222) |
| Space group | P212121 |
| Identification | |
| Color | black, violet-black (fresh); yellowish brown, greenish brown (exposed) |
| Luster | vitreous, sub-metallic, dull |
| Diaphaneity | transparent, translucent, opaque |
| Other characteristics |
Radioactive |
| References | [2] [3] |
Wyartite CaU5+
(UO
2)
2(CO
3)O
4(OH)·7H2O is a
uranium bearing
mineral named after
Jean Wyart (1902–1992), mineralogist at the
Sorbonne,
Paris. It has greenish-black, black, or violet-black, translucent to opaque orthorhombic crystals.
[4] It has a hardness of 3 to 4 on the
Mohs scale. Its other names are ianthinite (of Bignand), wyartit and wyartita. It belongs to the
uranium carbonate group of minerals. It is found next to
rutherfordine in
Shinkolobwe,
Shaba,
Zaire.
[4]
Determination of the structure of wyartite provided the first evidence for a pentavalent uranium mineral. Like all uranium minerals it is radioactive.
- ^ 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. S2CID 235729616.
- ^ Mindat
- ^ Mineralienatlas
- ^ a b "Wyartite Mineral Data". Webmineral.com. Retrieved 25 February 2021.