'Elongated crystals' presentation slideshows

Sermons From Science -- Aug 2017 ???? -- 2017 ? 8 ?

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Habit: Terms

Habit: Terms. Acicular, Capillary, Filiform, Bladed, Dendritic, Radiating, Drusy, Fibrous Globular, Colloform, Foliated, Micaceous, Tabular, Lamellar, Plumose Granular, Columnar, Prismatic. Acicular.

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massive magnetite

Under different conditions, a given mineral may grow as a massive aggregate where its many crystals show no distinct habit (too small or too tightly packed to develop symmetrical faces). massive magnetite. octahedral magnetite. topaz. amethyst SiO 2.

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