Melanite and Ajoite Physical Properties

Melanite

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

3.70-4.102.96

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Not Available

1.6 Cleavage

Not Available

Perfect on {010}

1.7 Mohs Hardness

6.5-75

2 10

1.8 Chemical Composition

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

(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Melanite and Ajoite Chemical Formula

While comparing Melanite 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 Melanite and Ajoite chemical formula.

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

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Melanite and Ajoite Specific Gravity

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