Gyrolite and Astrophyllite Physical Properties

Gyrolite

Astrophyllite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.483.2-3.4

1 7.18

1.5 Fracture

Brittle, Uneven, Brittle, Uneven

Uneven, Brittle, Metallic

1.6 Cleavage

Perfect on {001}

Perfect on [001] imperfect on [100]

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

NaCa16Si23AlO60(OH)8•64(H2O)

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

Gyrolite and Astrophyllite Chemical Formula

While comparing Gyrolite 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 Gyrolite and Astrophyllite chemical formula.

Chemical formula of Gyrolite- NaCa16Si23AlO60(OH)8•64(H2O)
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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Gyrolite and Astrophyllite Specific Gravity

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