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Natrolite (Na2Al2Si3O10·2H2O) NS3892B |
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Crystal system |
orthorhombic. |
Habit |
usually in radiating crystal groups, fibrous, massive, and granular. |
Cleavage |
perfect. |
Fracture |
uneven. |
Hardness |
5-5.5 |
Specific Gravity |
2.20-2.26 |
Color |
colorless, white pink or yellowish. |
Luster |
transparent with vitreous or pearly luster. |
Streak |
white. |
Distinguishing features |
light color and commonly fibrous habit. |
Uses |
of interest to scientists and collectors.
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