Topaz and Ajoite Physical Properties

Topaz

Ajoite

Add ⊕

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

3.49-3.572.96

1 7.18

1.5 Fracture

Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Not Available

1.6 Cleavage

[001] Perfect

Perfect on {010}

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Topaz and Ajoite Chemical Formula

While comparing Topaz 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 Topaz and Ajoite chemical formula.

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
Chemical formula of Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Compare Gems for Sagittarius

Topaz Vs Pietersite

Topaz Vs Quartz Smoky

Topaz Vs Petoskey Stone

Topaz and Ajoite Specific Gravity

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