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Ruby
Ruby

Fluorapatite
Fluorapatite



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Ruby and Fluorapatite Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.97-4.05
3.1-3.25
1.5 Fracture
Conchoidal
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
1.6 Cleavage
No true cleavage
Indistinct
1.7 Mohs Hardness
9
5
1.8 Chemical Composition
Al 2 O 3
Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)

Ruby and Fluorapatite Chemical Formula

While comparing Ruby and Fluorapatite 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 Ruby and Fluorapatite chemical formula.

  • Chemical formula of Ruby- Al 2 O 3
  • Chemical formula of Fluorapatite- Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)

Ruby and Fluorapatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Fluorapatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Fluorapatite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 3.1-3.25 whereas that of Fluorapatite is 3.1-3.25.