Astrophyllite and Chabazite Physical Properties

Astrophyllite

Chabazite

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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

3.2-3.4

2.08-2.16

1.5 Fracture

Uneven, Brittle, Metallic

Irregular/uneven, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect on [001] imperfect on [100]

distinct/good on {1011}

1.7 Mohs Hardness

4.5

1.8 Chemical Composition

(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)

CaAl 2Si 4O 12 -6H 2OArthur Thomas , Gemstones (2009)

Astrophyllite and Chabazite Chemical Formula

While comparing Astrophyllite and Chabazite 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 Astrophyllite and Chabazite chemical formula.

Chemical formula of Astrophyllite- (K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Chabazite- CaAl 2Si 4O 12 -6H 2OArthur Thomas , Gemstones (2009)

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Astrophyllite and Chabazite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Astrophyllite and Chabazite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Astrophyllite and Chabazite Optical Properties during the identification of gemstone. Specific gravity of Astrophyllite is 2.08-2.16 whereas that of Chabazite is 2.08-2.16.