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Polylithonite (KLi2AlSi4O10(F,OH)2) NS3947C |
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![Image: NS3947C.jpg](../minerals_jpg/NS3947C.jpg) |
![Detail: NS3947Cdetail.jpg](../minerals_jpg/NS3947Cdetail.jpg) |
Crystal system |
monoclinic |
Habit |
flat, pseudo-hexagonal, plate like leaflets that are stacked. |
Cleavage |
perfect. |
Fracture |
conchoidal.Parting - good, along the plate faces. |
Hardness |
6.5 |
Specific Gravity |
2.8 |
Color |
colorless, silvery, pale brown or pale yellow/brown. |
Luster |
pearly. |
Streak |
dark brown. |
Distinguishing features |
mica look, stacked habit and color. |
Uses |
of interest to scientists and collectors.
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