Emerald ore
Columbia
Emerald crystal is hexagonal system, and it is colored green because trace amount of chromium (or vanadium) substitute for certain aluminum
If iron substitutes instead of chromium (or vanadium), the mineral would be aquamarine.
財）石の博物館TM
Kiseki Museum
Collection Photo Album
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Emerald ore Columbia |
| Among beryl, the green ones are called emeralds, and they contain silicate, oxygen, beryllium, and aluminum. Emerald crystal is hexagonal system, and it is colored green because trace amount of chromium (or vanadium) substitute for certain aluminum If iron substitutes instead of chromium (or vanadium), the mineral would be aquamarine. |
