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Vesuvianite (Ca10Mg2Al4(SiO4)5(Si2O7)2(OH)4) NS3180 |
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| Crystal system | tetragonal. |
| Habit | stubby prisms often vertically striated, columnar or granular. |
| Cleavage | poor. |
| Fracture | conchoidal. |
| Hardness | 6.5 |
| Specific Gravity | 3 |
| Color | brown, olive green, yellow red or blue. |
| Luster | transparent to translucent with a vitreous to resinous luster. |
| Streak | white. |
| Distinguishing features | brown prisms and striated columnar masses are typical. |
| Uses | of interest to collectors and researchers, used in jewelry. |
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