Wardite and Gypsum Physical Properties

Wardite

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

2.812.20-2.40

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

{001} Perfect

Perfect on {010}, distinct on {100}

1.7 Mohs Hardness

4.5-52

2 10

1.8 Chemical Composition

NaAl 3(PO 4) 2(OH) 4 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Wardite and Gypsum Chemical Formula

While comparing Wardite 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 Wardite and Gypsum chemical formula.

Chemical formula of Wardite- NaAl 3(PO 4) 2(OH) 4 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

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Wardite and Gypsum Specific Gravity

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