Hurlbutite and Gypsum Physical Properties

Hurlbutite

Gypsum

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1 Physical Properties

1.1 Tenacity

Not Available

Flexible

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.902.20-2.40

1 7.18

1.5 Fracture

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

None

Perfect on {010}, distinct on {100}

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

Hurlbutite and Gypsum Chemical Formula

While comparing Hurlbutite and Gypsum 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 Hurlbutite and Gypsum chemical formula.

Chemical formula of Hurlbutite- CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

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Hurlbutite and Gypsum Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hurlbutite and Gypsum Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hurlbutite and Gypsum Optical Properties during the identification of gemstone. Specific gravity of Hurlbutite is 2.20-2.40 whereas that of Gypsum is 2.20-2.40.