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Hyalite Opal
Unlock the beauty of nature with this unique Apophyllite with Calcite Specimen from China
Locality: San Luis Potosí
Size: 7cm x 7cm x 7cm
Overall this specimen in very good shape with very minor damage
Thomsonite Specimen, India Onyx with Quartz Hyalite OpalThomsonite, named after prominent chemist Thomas Thomson, is a well named mineral belonging to the zeolite group. Primarily composed of hydrated calcium silicate, it may have minor amounts of sodium and traces of potassium, but lacks barium, strontium, iron, and magnesium. Structurally, it is similar to sodium calcium zeolite mesolite and sodium zeolite natrolite, but does not form a continuous chemical series with either. It can be found in a range