Posts by GEMS
EMERALD
General;
Category Beryl variety
Formula
(repeating
EMERALD General; Category Beryl variety Formula (repeating unit) Be3Al2(SiO3)6 Crystal symmetry (6/m 2/m 2/m) – Dihexagonal Dipyramidal Unit cell ...
EMERALD General; Category Beryl variety Formula (repeating unit) Be3Al2(SiO3)6 Crystal symmetry (6/m 2/m 2/m) – Dihexagonal Dipyramidal Unit cell ...
SAPPHIRE
General;
Category oxide mineral
Formula
(repeating
SAPPHIRE General; Category oxide mineral Formula (repeating unit) aluminium oxide, Al2O3 Identification Color often blue, but varies Crystal habit ma...
SAPPHIRE General; Category oxide mineral Formula (repeating unit) aluminium oxide, Al2O3 Identification Color often blue, but varies Crystal habit ma...
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