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Product Catalog > Minerals  > Opal

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Opal   Price: Price Varies Qty: 1 Sample [$4.50] 6 Samples [$22.50] 12 Samples [$40.50] View Shopping Cart

Opal is a hydrous silicate that forms as a precipitate or a replacement of the skeletons of marine organisms. Many colors and varieties of opals are found worldwide. Opals are useful in the production of jewelry, abrasives, insulators and porcelain. Under ultraviolet light, opals will often fluoresce a yellow or green color. Opals form as veins, crusts and globule, but never as crystals. An information card with details on the rocks formation, mineral content, characteristics and uses is included.

WARNING: CHOKING HAZARD - Small Parts. Not for Children Under 3 years.