Titanite Sphene and Astrophyllite Physical Properties

Titanite Sphene

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

3.52-3.543.2-3.4

1 7.18

1.5 Fracture

ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)

Uneven, Brittle, Metallic

1.6 Cleavage

Not Available

Perfect on [001] imperfect on [100]

1.7 Mohs Hardness

5-5.53

2 10

1.8 Chemical Composition

CaTiSiO 5Ulrich Henn and Claudio C.

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

Titanite Sphene and Astrophyllite Chemical Formula

While comparing Titanite Sphene 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 Titanite Sphene and Astrophyllite chemical formula.

Chemical formula of Titanite Sphene- CaTiSiO 5Ulrich Henn and Claudio C.
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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Titanite Sphene and Astrophyllite Specific Gravity

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