| Subclass: VanadatesGroup of minerals that are compounds of one or more metallic element associated with the vanadate radical (VO4). The vanadates, together with the related arsenates, are classified in the phosphates group. Most vanadates are heavy, and none are hard. They are usually brittle and occur in small crystals or compact aggregates.
Name
| Namibite
| Cu(BiO)2(VO4)(OH)
| Colour
| Dark green
|
| Lustre
|
| Crystal system
| Triclinic
| Hardness
| 4½ - 5
|
Name
| Turanite
| Cu5(VO4)2(OH)4
| Colour
| Green, olive-green
|
| Lustre
|
| Crystal system
| Triclinic
| Hardness
|
|
Name
| Stoiberite
| Cu5(VO4)2O2
| Colour
| Black
|
| Lustre
| Metallic
| Crystal system
| Monoclinic
| Hardness
|
|
Name
| Fingerite
| Cu11(VO4)6O2
| Colour
| black
|
| Lustre
| Metallic
| Crystal system
| Triclinic
| Hardness
|
|
Name
| Averievite
| Cu6(VO4)2O2Cl2
| Colour
| Black
|
| Lustre
| Resinous
| Crystal system
| Trigonal
| Hardness
|
|
Subclass: The Uranyl Phosphates and Arsenates
Name
| Torbernite
| Cu(UO2)2(PO4)2 · 12H2O
| Colour
| Emerald-green
|
| Lustre
| Sub-Adamantine, Vitreous, Waxy, Pearly
| Crystal system
| Tetragonal
| Hardness
| 2 - 2½
|
Name
| Zeunerite
| Cu(UO2)2(AsO4)2 · 12H2O
Water content was previously thought to range between 10 and 16 H2O.
| Colour
| Yellow-green
|
| Lustre
| Vitreous
| Crystal system
| Tetragonal
| Hardness
| 2½
|
Name
| Uranospinite
| Ca(UO2)(AsO4)2 · 10H2O
| Colour
| Yellow, lemon-yellow
|
| Lustre
| Waxy, Pearly, Earthy
| Crystal system
| Tetragonal
| Hardness
| 2 - 3
|
Name
| Bassetite
| Fe2+(UO2)2(PO4)2 · 8H2O
| Colour
| brownish yellow
|
| Lustre
| Sub-Vitreous, Waxy
| Crystal system
| Monoclinic
| Hardness
| 2½
|
Name
| Autunite
| Ca(UO2)2(PO4)2 · 11H2O
| Colour
| Yellow, greenish-yellow
|
| Lustre
| Sub-Vitreous, Resinous, Waxy, Pearly
| Crystal system
| Orthorhombic
| Hardness
| 2 - 2½
|
Date: 2015-12-24; view: 1912
|