Jasper and Astrophyllite Physical Properties

Jasper

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

2.58-2.913.2-3.4

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones of the world (2001)

Uneven, Brittle, Metallic

1.6 Cleavage

Indiscernible

Perfect on [001] imperfect on [100]

1.7 Mohs Hardness

6.5-73

2 10

1.8 Chemical Composition

SiO₂

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

Jasper and Astrophyllite Chemical Formula

While comparing Jasper 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 Jasper and Astrophyllite chemical formula.

Chemical formula of Jasper- SiO₂
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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Jasper and Astrophyllite Specific Gravity

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