Alabaster and Glaucophane Physical Properties

Alabaster

Glaucophane

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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

2.303-3.15

1 7.18

1.5 Fracture

Not Available

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

Not Available

Good on [110] and on [001]

1.7 Mohs Hardness

26.0-6.5

2 10

1.8 Chemical Composition

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

[ ]Na2(Mg3Al2)Si8O22(OH)2

Alabaster and Glaucophane Chemical Formula

While comparing Alabaster and Glaucophane 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 Alabaster and Glaucophane chemical formula.

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

Compare Brown Gemstones

Alabaster Vs Astrophyllite

Alabaster Vs Anthophyllite

Alabaster Vs Anhydrite

Alabaster and Glaucophane Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alabaster and Glaucophane Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alabaster and Glaucophane Optical Properties during the identification of gemstone. Specific gravity of Alabaster is 3-3.15 whereas that of Glaucophane is 3-3.15.