Rhodolite and Astrophyllite Physical Properties

Rhodolite

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

3.843.2-3.4

1 7.18

1.5 Fracture

Conchoidal

Uneven, Brittle, Metallic

1.6 Cleavage

none, may show indistinct parting

Perfect on [001] imperfect on [100]

1.7 Mohs Hardness

7-7.53

2 10

1.8 Chemical Composition

(Mg,Fe)₃Al₂Si₃O₁₂

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

Rhodolite and Astrophyllite Chemical Formula

While comparing Rhodolite 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 Rhodolite and Astrophyllite chemical formula.

Chemical formula of Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂
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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Rhodolite Vs Sardonyx

Rhodolite Vs Sard

Rhodolite and Astrophyllite Specific Gravity

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