Astrophyllite and Chrysotile Physical Properties

Astrophyllite

Chrysotile

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

insoluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

3.2-3.4

2.51-2.63

1.5 Fracture

Uneven, Brittle, Metallic

Fibrous

1.6 Cleavage

Perfect on [001] imperfect on [100]

Not Available

1.7 Mohs Hardness

2.5-4.5

1.8 Chemical Composition

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

Mg 3(Si 2O 5)(OH) 4Gemdat.org , Management Team (2012)

Astrophyllite and Chrysotile Chemical Formula

While comparing Astrophyllite and Chrysotile 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 Chrysotile 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 Chrysotile- Mg 3(Si 2O 5)(OH) 4Gemdat.org , Management Team (2012)

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Astrophyllite and Chrysotile Specific Gravity

Another important criteria for qualitative analysis of gemstones is Astrophyllite and Chrysotile Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Astrophyllite and Chrysotile Optical Properties during the identification of gemstone. Specific gravity of Astrophyllite is 2.51-2.63 whereas that of Chrysotile is 2.51-2.63.