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the world > the earth > minerals > types of mineral > silicates > phyllosilicate > [noun] > vermiculite(s) > varieties (4)
jefferisite1866

A hydrous silicate of aluminium, iron, and magnesium, in foliated crystals, like mica, exfoliating in a remarkable manner when heated.

kerrite1873

A kind of vermiculite found in North Carolina, of a pale greenish yellow colour with a tint of brown.

protovermiculite1877

a mineral similar in composition to vermiculite but containing less water, and occurring as large yellow or brown scales.

philadelphite1881

A clay mineral now regarded as a variety of hydrobiotite.

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更新时间:2025/1/12 4:14:05