Catapleiite and Astrophyllite Physical Properties

Catapleiite

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

2.723.2-3.4

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

Uneven, Brittle, Metallic

1.6 Cleavage

{110} Perfect, {010} Perfect

Perfect on [001] imperfect on [100]

1.7 Mohs Hardness

5-63

2 10

1.8 Chemical Composition

Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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

Catapleiite and Astrophyllite Chemical Formula

While comparing Catapleiite 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 Catapleiite and Astrophyllite chemical formula.

Chemical formula of Catapleiite- Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
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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Catapleiite and Astrophyllite Specific Gravity

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