Oligoclase
An10-An30
|
Chemical name
Oligoclase |
|
Chemical formula
An10-An30 |
|
Crystal system
triclinic |
|
Crystal Class
Pinacoidal |
|
Space Group
C1 |
|
Mohs hardness
6 - 6.5 |
|
Cleavage
(001) perfect, (010) good, (110) poor |
|
Fracture / Tenacity
Uneven, Sub-Conchoidal |
|
Color
usually white, with shades of grey, green, or red |
|
Luster
Vitreous |
|
Refractive Index
nα = 1.533-1.543, nβ = 1.537-1.548, nγ = 1.542-1.552 |
