Anorthoclase and Astrophyllite Physical Properties

Anorthoclase

Astrophyllite

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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

2.56-2.623.2-3.4

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Uneven, Brittle, Metallic

1.6 Cleavage

From the Greek for oblique and fracture, descriptive of the cleavage

Perfect on [001] imperfect on [100]

1.7 Mohs Hardness

6-6.53

2 10

1.8 Chemical Composition

(Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Anorthoclase and Astrophyllite Chemical Formula

While comparing Anorthoclase and Astrophyllite 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 Anorthoclase and Astrophyllite chemical formula.

Chemical formula of Anorthoclase- (Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Astrophyllite- (K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)

Compare Colorless Gems

Anorthoclase Vs Beryllonite

Anorthoclase Vs Beryl

Anorthoclase Vs Black Opal

Anorthoclase and Astrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anorthoclase and Astrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anorthoclase and Astrophyllite Optical Properties during the identification of gemstone. Specific gravity of Anorthoclase is 3.2-3.4 whereas that of Astrophyllite is 3.2-3.4.