Uvite and Astrophyllite Physical Properties

Uvite

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

2.97-3.143.2-3.4

1 7.18

1.5 Fracture

Uneven, Conchoidal, Brittle

Uneven, Brittle, Metallic

1.6 Cleavage

{1011} Indistinct

Perfect on [001] imperfect on [100]

1.7 Mohs Hardness

Not Available3

2 10

1.8 Chemical Composition

Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

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

Uvite and Astrophyllite Chemical Formula

While comparing Uvite 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 Uvite and Astrophyllite chemical formula.

Chemical formula of Uvite- Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Chemical formula of Astrophyllite- (K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)

Compare Red Gemstones

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Uvite Vs Willemite

Uvite Vs Wulfenite

Uvite and Astrophyllite Specific Gravity

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