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Name: |
bastnasite (bastnaesite) |
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Class: |
Carbonates |
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Chemistry: |
Y (CO3) F |
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Color(s): |
yellow, yellow-brown, reddish-brown streak: white |
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Hardness: |
4.0 - 4.5 |
SpecGrav: |
4.9 - 5.0 |
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Fracture: |
Cleavage: |
imperfect |
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Crystal: |
hexagonal - often prismatic |
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Envronment: |
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Association: |
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Locals: |
| N.M., USA | Sweden | |
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Misc: |
Named as the Y end member from the Bastnas Mine, Riddarhyttan, Vastmanland, Sweden. There are three minerals that make up the group Y, Ce, and La. |
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