In gem the cavansite needs to be treated to be stabilized.
Depending on the light source, the cavansite does not have the same color, it ranges from turquoise blue to ultramarine blue
To learn more about the Cavansite, See Mindat.org->
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Cavansite
- Translations : Cavansit, Cavansiet, Cavansita, Кавансит
- Etymology : Comes from the chemical composition of the mineral: Calcium, Vanadium and Silicon.
- Discovery: 1967 by LLoyd Staples, Howard Evans et James Lindsay
- Type localitytype : Owyhee Dam, lac Owyhee, Malheur County & Columbia County, Oregon, USA
Gemological data
- Chemical formula : Ca(V4+O)Si4O10,4H20
- Hardness (Mohs) : 3 - 4
- Density : 2.21 - 2.31
- Refractive index : a=1.542, b=1.544, g=1.551
- Birefingence : 0.0090
- Crystal system : Orthorhombic
- Group : Phyllosilicates
The gallery
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