Milarite and Amethyst Physical Properties

Milarite

Amethyst

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

insoluble in common solvents

1.3 Durability

Not Available

1.4 Specific Gravity

2.52-2.602.65

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

{0001} Imperfect, {1120} Imperfect

Indiscernible

1.7 Mohs Hardness

5.5-67

2 10

1.8 Chemical Composition

KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

SiO₂

Milarite and Amethyst Chemical Formula

While comparing Milarite and Amethyst 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 Amethyst chemical formula.

Chemical formula of Milarite- KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Amethyst- SiO₂

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Milarite and Amethyst Specific Gravity

Another important criteria for qualitative analysis of gemstones is Milarite and Amethyst Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Milarite and Amethyst Optical Properties during the identification of gemstone. Specific gravity of Milarite is 2.65 whereas that of Amethyst is 2.65.