Aquamarine and Astrophyllite Physical Properties

Aquamarine

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

2.66-2.803.2-3.4

1 7.18

1.5 Fracture

Not Available

Uneven, Brittle, Metallic

1.6 Cleavage

3,1 basal

Perfect on [001] imperfect on [100]

1.7 Mohs Hardness

7.5-83

2 10

1.8 Chemical Composition

Be₃Al₂SiO₆

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

Aquamarine and Astrophyllite Chemical Formula

While comparing Aquamarine 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 Aquamarine and Astrophyllite chemical formula.

Chemical formula of Aquamarine- Be₃Al₂SiO₆
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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Aquamarine and Astrophyllite Specific Gravity

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