Manganaxinite | |
Chemical Formula |
(Ca,Fe,Mn)3Al2BO3Si4O12OH or Ca2(Fe,Mn)Al2BSi4O15(OH) |
Species |
Silicates |
Crystal System |
Triclinic |
Mohs Scale |
6-7.5 |
Specific Gravity |
3.18-3.37 |
Color |
Reddish brown to yellow to colorless. Blue, Purple, grey. |
Streak |
White |
Luster |
Vitreous |
Refractive Index |
nα = 1.672–1.693nβ = 1.677–1.701nγ = 1.681–1.704 |
Cleavage |
Good on |
Fracture |
Conchoidal |
Crystal Habit:Tabular, wedge shaped crystals |