Glaucophane and Poldervaartite Physical Properties

Glaucophane

Poldervaartite

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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

3-3.152.91

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

Handbook of mineralogy (2001)

1.6 Cleavage

Good on [110] and on [001]

None

1.7 Mohs Hardness

6.0-6.5Not Available

2 10

1.8 Chemical Composition

[ ]Na2(Mg3Al2)Si8O22(OH)2

(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

Glaucophane and Poldervaartite Chemical Formula

While comparing Glaucophane and Poldervaartite 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 Poldervaartite chemical formula.

Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

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Glaucophane and Poldervaartite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Glaucophane and Poldervaartite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Glaucophane and Poldervaartite Optical Properties during the identification of gemstone. Specific gravity of Glaucophane is 2.91 whereas that of Poldervaartite is 2.91.