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Weloganite (Sr3 Na2Zr(CO3)6·3H2O) D02421A |
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| Crystal system | hexagonal. |
| Habit | roughly hexagonal crystals in prism form and heavily striated; terminations are pyramidal; stacked plates that enlarge growing outwards. |
| Cleavage | perfect. |
| Fracture | conchoidal. |
| Hardness | 3.5 |
| Specific Gravity | 3.2 |
| Color | colorless, white, light yellow, green, orange/yellow grading to pink, light green, olive, gray or red. |
| Luster | transparent to opaque with a vitreous luster. |
| Streak | white. |
| Distinguishing features | the stacked plates that seem to enlarge outwards is typical. |
| Uses | of interest to collectors and scientists. |
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