verd antique

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verd antique:

see serpentineserpentine
, hydrous silicate of magnesium. It occurs in crystalline form only as a pseudomorph having the form of some other mineral and is generally found in the form of chrysotile (silky fibers) and antigorite and lizardite (which are both tabular).
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verd antique, verde antique

A dark green serpentine rock marked with white veins of cal-cite; takes a high polish; used for decorative purposes since ancient Rome; sometimesclassed as a marble.
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