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- ...ess]] of the mineral is the same as quartz, thus it is suitable for use in jewelry.15 KB (2,130 words) - 09:46, 20 August 2012
- ...been, since antiquity, the most commonly used minerals in the making of [[jewelry]] and [[hardstone carving]]s.23 KB (3,123 words) - 09:55, 20 August 2012