Astrophyllite and Aegirine Physical Properties

Astrophyllite

Aegirine

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.2-3.43.50-3.60

1 7.18

1.5 Fracture

Uneven, Brittle, Metallic

Uneven, Brittle, Metallic, Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

Perfect on [001] imperfect on [100]

Good on {110}, (110) ^ (1 1 0) ≈87°; parting on {100}

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

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

(Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.

Astrophyllite and Aegirine Chemical Formula

While comparing Astrophyllite and Aegirine 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 Aegirine 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 Aegirine- (Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.

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Astrophyllite and Aegirine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Astrophyllite and Aegirine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Astrophyllite and Aegirine Optical Properties during the identification of gemstone. Specific gravity of Astrophyllite is 3.50-3.60 whereas that of Aegirine is 3.50-3.60.