Andesine and Alabaster Physical Properties

Andesine

Alabaster

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.65-2.692.30

1 7.18

1.5 Fracture

Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)

Not Available

1.6 Cleavage

Perfect on {001}, good on {010}

Not Available

1.7 Mohs Hardness

6-6.52

2 10

1.8 Chemical Composition

(Na,Ca)Al_1-2Si_3-2O₈

CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)

Andesine and Alabaster Chemical Formula

While comparing Andesine and Alabaster 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 Andesine and Alabaster chemical formula.

Chemical formula of Andesine- (Na,Ca)Al_1-2Si_3-2O₈
Chemical formula of Alabaster- CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)

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Andesine and Alabaster Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andesine and Alabaster Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andesine and Alabaster Optical Properties during the identification of gemstone. Specific gravity of Andesine is 2.30 whereas that of Alabaster is 2.30.