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Stilbite - SKU_A_1589

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Availability: In stock


From: Nisic, India.

Hardness: 3.5 - 4 on the mohrs scale

A hydrous calcium sodium and aluminium silicate mineral. Stilbite is a low-temperature secondary hydrothermal mineral. It occurs in the amygdaloidal cavities of basaltic volcanic rocks, in andesites, gneiss and hydrothermal veins. It also forms in hot springs deposits, and as a cementing agent in some sandstones and conglomerates. Stilbite has not been found in sedimentary tuff deposits or deep-sea deposits. Associated minerals are other zeolites, prehnite, calcite and quartz.