cavansite mineral from poona, india. a deep blue hydrous calcium vanadium phyllosilicate mineral

abstract andesitic basaltic beautiful beauty blue calcium close closeup cluster crystal crystalline crystallized crystals detail elegant fibrous formation gem gemmology gems gemstone geologists geology isolated macro material mineral mineralogy natural nature organic orthorhombic pattern phyllosilicate precious prism raw rock semiprecious shape sharp silicate specimen stone surface texture turquoise unique zeolite