Ettringite and Fluorite Physical Properties

Ettringite

Fluorite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Partially soluble in water

1.77

Perfect on {10 1 0}

2-2.5

Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Brittle

slightly water soluble and in hot hydrochloric acid

3.00-3.25

Subconchoidal, Uneven, ConchoidalWalter Schumann

Octahedral, perfect on {111}, parting on {011}

CaF₂

Ettringite and Fluorite Chemical Formula

While comparing Ettringite and Fluorite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Ettringite and Fluorite chemical formula.

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Ettringite and Fluorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ettringite and Fluorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite Vs Fluorite during the identification of gemstone. Specific gravity of Ettringite is whereas that of Fluorite is .