Object ID:
1917.8.101
Collection:
Natural History-Ladies of New London
Object Name:
Orthoclase
Dimensions:
H-1.4 W-1.3 L-2.9 cm
Description:
Orthoclase mineral classification: Silicates
Part of the potassium feldspar group, perfect 90 degree cleavage, well formed crystal.
Part of the potassium feldspar group, perfect 90 degree cleavage, well formed crystal.
Streak:
white
Chemical Composition:
Potassium aluminum silica
Crystal System:
Monoclinic
Specific Gravity:
2.55-2.63
Hardness:
06
Luster:
Vitreous
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