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Pectolite (NaCa2Si3O8(OH)) NS2683A |
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![Image: NS2683Adetail.jpg](../minerals_jpg/NS2683Adetail.jpg) |
Crystal system |
triclinic. |
Habit |
fibrous and radiating spherical aggregates in compact masses; acicular, elongate crystals also possible. |
Cleavage |
perfect. |
Fracture |
splintery. |
Hardness |
5 |
Specific Gravity |
2.89 |
Color |
colorless, white or gray. |
Luster |
transparent with vitreous or silky luster. |
Streak |
white. |
Distinguishing features |
two directions on the crystal have perfect cleavage; and acicular fragments that can puncture the skin. |
Uses |
of interest to scientists and collectors.
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