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- An obsolete syn. for heterogranular.
- Said of crystals with unequal dimensions, including those with significant flattening, elongation, or both. Ant. isometric. CF: equant; tabular.
- See: heterogranulard. Said of crystal structures with chemical bond strengths that are directionally unequal; e.g., micas.
Source: Dictionary of Mining, Mineral, and Related Terms