Almandine and Rhodolite Physical Properties

Almandine

Rhodolite

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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

3.95-4.30

3.84

1.5 Fracture

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

Conchoidal

1.6 Cleavage

none

none, may show indistinct parting

1.7 Mohs Hardness

7-7.5

1.8 Chemical Composition

Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

(Mg,Fe)₃Al₂Si₃O₁₂

Almandine and Rhodolite Chemical Formula

While comparing Almandine and Rhodolite 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 Almandine and Rhodolite chemical formula.

Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂

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Almandine and Rhodolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Almandine and Rhodolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine and Rhodolite Optical Properties during the identification of gemstone. Specific gravity of Almandine is 3.84 whereas that of Rhodolite is 3.84.