Almost Extinct Mineral - Cavansite on Stilbite - Rare Deep Blue Formations - Collectible Specimen - Height: 152 mm - Width: 86 mm- 502 g

Blue cavansite crystals on stilbite matrix from Wagholi Quarry, India.
Wagholi is an area rich in deposits of zeolites, including stilbite and cavansite. The quarry has been active for many years and has supplied a significant number of cavansite specimens to collectors and mineral enthusiasts.
The Wagholi Quarry has attracted the attention of many mineral collectors and enthusiasts around the world, thanks to the quality and variety of Cavansite extracted. The mine has been closed for years, and its mineral samples are now hard to find.
Appearance and physical characteristics: Cavansite crystals have a distinctive radiating or acicular crystal form. They are deep blue or bluish-green in color and often exhibit a vitreous luster. Cavansite is a calcium vanadium silicate, with the chemical formula Ca(VO)(Si4O10)·4H2O.