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It has mostly the same composition as other precious opals in their mixture of water and silicon dioxide
Large Botryoidal Clinochlore (Seraphinite) Specimen
Sodalite itself is a blue silicate mineral often found in igneous rocks
in which the ancient resin is slowly transformed into amber over millions of years
Dimensions: 5 x 3 x 3 inches
3.5" Green Aragonite Slab from Profunda Mine, Spain DX2588 dolomite It has mostly the sameGreen Aragonite Slab Approx. Dimensions: 3. 5 x 2. 5 x 0. 5 inches Approx. Weight: 127 grams Locality: Profunda Mine, Crmenes, Len, Spain Includes acrylic slab stand! This slab of aragonite from the Profunda Mine has a very soothing minty green color and fibrous banding. Most polished pieces from this mine will exhibit chatoyancy from the fibrous formation of the aragonite. The Profunda Mine was an old Roman mine and was later used as a source of
US$ 21.00
US$ 34.95
US$ 34.95
