Jeremejevite and Astrophyllite Physical Properties

Jeremejevite

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

3.28-3.313.2-3.4

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Uneven, Brittle, Metallic

1.6 Cleavage

None observed

Perfect on [001] imperfect on [100]

1.7 Mohs Hardness

6.5-7.53

2 10

1.8 Chemical Composition

Al 6B 5O 15(F,OH) 3Ulrich Henn and Claudio C.

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

Jeremejevite and Astrophyllite Chemical Formula

While comparing Jeremejevite 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 Jeremejevite and Astrophyllite chemical formula.

Chemical formula of Jeremejevite- Al 6B 5O 15(F,OH) 3Ulrich 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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Jeremejevite and Astrophyllite Specific Gravity

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