Glaucophane and Alabaster Physical Properties

Glaucophane

Alabaster

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3-3.152.30

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

Not Available

1.6 Cleavage

Good on [110] and on [001]

Not Available

1.7 Mohs Hardness

6.0-6.52

2 10

1.8 Chemical Composition

[ ]Na2(Mg3Al2)Si8O22(OH)2

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

Glaucophane and Alabaster Chemical Formula

While comparing Glaucophane 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 Glaucophane and Alabaster chemical formula.

Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
Chemical formula of Alabaster- CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)

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Glaucophane and Alabaster Specific Gravity

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