Zincolivenite | |
Category: | Arsenate mineral |
Formula: | CuZn(AsO4)(OH) |
Imasymbol: | Zoli[1] |
Strunz: | 8.BB.30 |
Dana: | 41.06.06.06 |
System: | Orthorhombic |
Class: | Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m) |
Symmetry: | Pnnm |
Unit Cell: | a = 8.5839(15) Å b = 8.5290(13) Å c = 5.9696(9) Å; Z = 4 |
Color: | Green, greenish blue |
Habit: | Prismatic crystals, radiating |
Cleavage: | Perfect on, imperfect on |
Fracture: | Conchoidal |
Tenacity: | Brittle |
Mohs: | 3.5 |
Luster: | Vitreous |
Streak: | White |
Diaphaneity: | Translucent |
Gravity: | 4.33 |
Opticalprop: | Biaxial (-) |
Refractive: | 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: | 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]