Barite and Astrophyllite Physical Properties

Barite

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

4.483.2-3.4

1 7.18

1.5 Fracture

Uneven

Uneven, Brittle, Metallic

1.6 Cleavage

{010} Perfect, {210} Perfect, {010} Imperfect

Perfect on [001] imperfect on [100]

1.7 Mohs Hardness

3-3.53

2 10

1.8 Chemical Composition

BaSO4

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

Barite and Astrophyllite Chemical Formula

While comparing Barite 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 Barite and Astrophyllite chemical formula.

Chemical formula of Barite- BaSO4
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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Barite and Astrophyllite Specific Gravity

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