datolite |
| noun
- (mineralogy) A borosilicate of lime commonly occurring in glassy, greenish crystals.
| | demantoid |
| noun
- a green garnet
| Diamond |
| proper noun
- (given name, female) of modern usage, from the name of the gem.
| diopside |
| noun - (mineralogy) a monoclinic pyroxene mineral, (a magnesium calcium silicate), found in igneous and metamorphic rocks
| dolomite |
| noun - (mineralogy) a saline evaporite consisting of a mixed calcium and magnesium carbonate; it also exists as the rock dolostone
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