Ajoite and Fayalite Physical Properties

Ajoite

Fayalite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Decomposed by acids

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.964.392

1 7.18

1.5 Fracture

Not Available

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

1.6 Cleavage

Perfect on {010}

{010} moderate, {100} imperfect

1.7 Mohs Hardness

56.5-7

2 10

1.8 Chemical Composition

(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Ajoite and Fayalite Chemical Formula

While comparing Ajoite and Fayalite 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 Ajoite and Fayalite chemical formula.

Chemical formula of Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)
Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Ajoite and Fayalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ajoite and Fayalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ajoite and Fayalite Optical Properties during the identification of gemstone. Specific gravity of Ajoite is 4.392 whereas that of Fayalite is 4.392.