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Have a look at the alkali granite (L100) and the hornblende biotite granite (L102) in the 1A Reference Series.

Microcrystalline

Compare with cryptocrystalline.

See cross-hatched twins.

Have a look at muscovite mica (M301, M302) and biotite mica (M303, M304) in the 1A Reference Series.

Have a look at pyrite (M520) in the 1A Reference Series.

Compare with phenocryst.

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