Spinel and Rhodolite Physical Properties

Spinel

Rhodolite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

none

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.64-3.663.84

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Conchoidal

1.6 Cleavage

None, but may exhibit slight parting

none, may show indistinct parting

1.7 Mohs Hardness

87-7.5

2 10

1.8 Chemical Composition

MgAl₂O₄

(Mg,Fe)₃Al₂Si₃O₁₂

Spinel and Rhodolite Chemical Formula

While comparing Spinel 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 Spinel and Rhodolite chemical formula.

Chemical formula of Spinel- MgAl₂O₄
Chemical formula of Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂

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Spinel and Rhodolite Specific Gravity

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