Meerschaum - Softcover

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Meerschaum, also sepiolite, is a soft white mineral sometimes found floating on the Black Sea, and rather suggestive of sea-foam, whence the German origin of the name, as well as the French name for the same substance, écume de mer. Meerschaum is opaque and of white, grey or cream color, breaking with a conchoidal or fine earthy fracture, and occasionally fibrous in texture. Because it can be readily scratched with the nail, its hardness is placed at about 2. The specific gravity varies from 0.988 to 1.279, but the porosity of the mineral may lead to error. Meerschaum is a hydrous magnesium silicate having the chemical formula Mg4Si6O15(OH)2·6H2O.

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