Zincolivenite
Appearance
Zincolivenite | |
---|---|
![]() Zincolivenite from Agios Konstantinos, Lavrion District Mines, Lavreotiki District, East Attica Prefecture, Greece | |
General | |
Category | Arsenate mineral |
Formula (repeating unit) | CuZn(AsO4)(OH) |
IMA symbol | Zoli[1] |
Strunz classification | 8.BB.30 |
Dana classification | 41.06.06.06 |
Crystal system | Orthorhombic |
Crystal class | Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m) |
Space group | Pnnm |
Unit cell | a = 8.5839(15) Å b = 8.5290(13) Å c = 5.9696(9) Å; Z = 4 |
Identification | |
Color | Green, greenish blue |
Crystal habit | Prismatic crystals, radiating |
Cleavage | Perfect on {010}, imperfect on {101} |
Fracture | Conchoidal |
Tenacity | Brittle |
Mohs scale hardness | 3.5 |
Luster | Vitreous |
Streak | White |
Diaphaneity | Translucent |
Specific gravity | 4.33 |
Optical properties | Biaxial (-) |
Refractive index | nα = 1.736(2) nβ = 1.784(2) nγ = 1.788(2) |
Birefringence | 0.052 |
Pleochroism | Weak X = light bluish green, Y = Z = light blue |
2V angle | Measured: 30° |
Dispersion | r > v, very strong |
Extinction | Parallel extinction |
References | [2][3] |
Zincolivenite is a copper zinc arsenate mineral with formula CuZn(AsO4)(OH) that is a member of the olivenite group. Its colors range from green to blue, and its name comes from its composition of zinc and olivenite.[2]
It was first described from St Constantine, Lavrion District Mines, Laurium, Attica, Greece. It was approved by the International Mineralogical Association in 2006.[2]
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. S2CID 235729616.
- ^ a b c Mindat.org - Zincolivenite Data
- ^ Webmineral - Zincolivenite Data