Vi fant 2 definisjoner av biotite på engelsk.
Noun |
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| biotite - dark brown to black mica found in igneous and metamorphic rock | ||
| isinglass, mica any of various minerals consisting of hydrous silicates of aluminum or potassium etc. that crystallize in forms that allow perfect cleavage into very thin leaves; used as dielectrics because of their resistance to electricity | ||
