Spessartine and Ajoite Physical Properties

Spessartine

Ajoite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Decomposed by acids

1.3 Durability

Not Available

1.4 Specific Gravity

4.12-4.182.96

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Conchoidal, Brittle

Not Available

1.6 Cleavage

{???} Distinct

Perfect on {010}

1.7 Mohs Hardness

7-7.55

2 10

1.8 Chemical Composition

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

(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Spessartine and Ajoite Chemical Formula

While comparing Spessartine and Ajoite 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 Spessartine and Ajoite chemical formula.

Chemical formula of Spessartine- Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

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Spessartine and Ajoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spessartine and Ajoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spessartine and Ajoite Optical Properties during the identification of gemstone. Specific gravity of Spessartine is 2.96 whereas that of Ajoite is 2.96.