Topaz and Milarite Physical Properties

Topaz

Milarite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.49-3.572.52-2.60

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

[001] Perfect

{0001} Imperfect, {1120} Imperfect

1.7 Mohs Hardness

85.5-6

2 10

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

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

Topaz and Milarite Chemical Formula

While comparing Topaz and Milarite 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 Milarite chemical formula.

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
Chemical formula of Milarite- KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Gems for Sagittarius

Topaz Vs Petoskey Stone

Topaz Vs Quartz Smoky

Topaz Vs Pietersite

Topaz and Milarite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Milarite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Milarite Optical Properties during the identification of gemstone. Specific gravity of Topaz is 2.52-2.60 whereas that of Milarite is 2.52-2.60.