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Name: |
chrysoberyl |
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Class: |
Oxide/Hydroxides |
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Chemistry: |
BeAl2O4 |
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Color(s): |
yellow-green, green, brown, greenish-white |
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Hardness: |
8.5 |
SpecGrav: |
3.5-3.8 |
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Fracture: |
Cleavage: |
good one direction poor in two |
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Crystal: |
orthorhombic; usually tabular or prismatic, often twinned in circular (six-sided) shapes. |
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Envronment: |
granite pegmatites, shists, and a few other metamorphics |
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Association: |
microcline, tourmaline,albite, almandite, garnet, spinel |
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Locals: |
Sweden / USSR/ Sri Lankra / Burma / Brazil / China/ |
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Misc: |
from the Greek, chrysos and beryllos, relating to beryl and its golden yellow color. It was once considered a variety of beryl. |
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Photos |
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1.) Santa Teresa, Espirito Santo, Brazil |
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