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Fluorite on quartz from the Avellan mine in Fréjus, Var, France.
Dimensions of stone: L: 63mm x W: 37mm x H: 62mm x weight with base: 135g.
Chemical formula: CaF2 (calcium fluoride). Hardness: 4 on the Mohs scale. Density 3.18 (Weighs 3.18 times its equivalent volume of water). Colour: grey-green.
This item is presented on a bevelled acrylic base.
Cleaning fluorite: lukewarm water, soapy water, brush or soft bristle brush.
Identification: can be scratched with a knife, reacts to acid test (HCl).
See our article on fluorite.
