Rhodizite and Astrophyllite Physical Properties

Rhodizite

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

3.34-3.443.2-3.4

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

Uneven, Brittle, Metallic

1.6 Cleavage

{111} Indistinct, {111} Indistinct, {111} Indistinct

Perfect on [001] imperfect on [100]

1.7 Mohs Hardness

8-8.53

2 10

1.8 Chemical Composition

(K,Cs)Al 4Be 4(B,Be) 12O 28Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Rhodizite and Astrophyllite Chemical Formula

While comparing Rhodizite 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 Rhodizite and Astrophyllite chemical formula.

Chemical formula of Rhodizite- (K,Cs)Al 4Be 4(B,Be) 12O 28Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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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Rhodizite and Astrophyllite Specific Gravity

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