Villiaumite and Astrophyllite Physical Properties

Villiaumite

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

2.793.2-3.4

1 7.18

1.5 Fracture

Brittle, Metallic

Uneven, Brittle, Metallic

1.6 Cleavage

{100} Perfect, {010} Perfect, {001} Perfect

Perfect on [001] imperfect on [100]

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

NaFUlrich Henn and Claudio C.

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

Villiaumite and Astrophyllite Chemical Formula

While comparing Villiaumite 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 Villiaumite and Astrophyllite chemical formula.

Chemical formula of Villiaumite- NaFUlrich 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)

Compare Gems Found in America

Villiaumite Vs Witherite

Villiaumite Vs Xonotlite

Villiaumite Vs Zincite

Villiaumite and Astrophyllite Specific Gravity

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