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Milarite
Milarite

Austinite
Austinite



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Milarite
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Austinite

Milarite and Austinite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Easily soluble in cold dilute HCl

Durability

-
-

Specific Gravity

2.52-2.604.12
1 7.18
👆🏻

Fracture

Uneven, Conchoidal
Uneven

Cleavage

{0001} Imperfect, {1120} Imperfect
Good in two directions parallel to the prism faces {110}

Mohs Hardness

5.5-64-4.5
2 10
👆🏻

Chemical Composition

KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
CaZn(AsO4)(OH)

Milarite and Austinite Chemical Formula

While comparing Milarite 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 Milarite and Austinite chemical formula.

  • Chemical formula of Milarite- KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Austinite- CaZn(AsO4)(OH)

Milarite and Austinite Specific Gravity

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