Jadeite and Astrophyllite Physical Properties

Jadeite

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

3.28-3.383.2-3.4

1 7.18

1.5 Fracture

Splintery, UnevenArthur Thomas, Difficult, Fibrous

Uneven, Brittle, Metallic

1.6 Cleavage

Good on [110]

Perfect on [001] imperfect on [100]

1.7 Mohs Hardness

6.5-73

2 10

1.8 Chemical Composition

NaAlSi 2O 6Ulrich Henn and Claudio C.

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

Jadeite and Astrophyllite Chemical Formula

While comparing Jadeite 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 Jadeite and Astrophyllite chemical formula.

Chemical formula of Jadeite- NaAlSi 2O 6Ulrich Henn and Claudio C.
Chemical formula of Astrophyllite- (K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)

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Jadeite and Astrophyllite Specific Gravity

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