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Monazite
Monazite

Austinite
Austinite



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Monazite
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Austinite

Monazite and Austinite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Easily soluble in cold dilute HCl

Durability

-
-

Specific Gravity

4.80-5.504.12
1 7.18
👆🏻

Fracture

-
Uneven

Cleavage

Indistinct
Good in two directions parallel to the prism faces {110}

Mohs Hardness

5-5.54-4.5
2 10
👆🏻

Chemical Composition

(Ce,La,Nd,Th)PO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
CaZn(AsO4)(OH)

Monazite and Austinite Chemical Formula

While comparing Monazite and Austinite 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 Monazite and Austinite chemical formula.

  • Chemical formula of Monazite- (Ce,La,Nd,Th)PO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Austinite- CaZn(AsO4)(OH)

Monazite and Austinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Monazite and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Monazite and Austinite Optical Properties during the identification of gemstone. Specific gravity of Monazite is 4.12 whereas that of Austinite is 4.12.