quartzlike
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opal — n. a quartzlike form of hydrated silica, usu. white or colourless and sometimes showing changing colours, often used as a gemstone. Phrases and idioms: opal glass a semi translucent white glass. Etymology: F opale or L opalus prob. ult. f. Skr.… … Useful english dictionary
phen|a|cite — «FEHN uh syt», noun. a mineral, a colorless, yellow, or brown silicate of beryllium, sometimes used as a gem, occurring in quartzlike transparent or translucent crystals. Formula: Be2SiO4 Also, phenakite. ╂[< Greek phénāx, ākos a cheat +… … Useful english dictionary
quartz|ose — «KWAWRT sohs», adjective. consisting mainly or wholly of quartz; quartzlike … Useful english dictionary
