Rossmanite and Ajoite Physical Properties

Rossmanite

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

32.96

1 7.18

1.5 Fracture

Brittle, Metallic

Not Available

1.6 Cleavage

None

Perfect on {010}

1.7 Mohs Hardness

Not Available5

2 10

1.8 Chemical Composition

◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Rossmanite and Ajoite Chemical Formula

While comparing Rossmanite 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 Rossmanite and Ajoite chemical formula.

Chemical formula of Rossmanite- ◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Chemical formula of Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

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Rossmanite and Ajoite Specific Gravity

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