Fluorapatite and Ruby Physical Properties

Fluorapatite

Ruby

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.1-3.253.97-4.05

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)

Conchoidal

1.6 Cleavage

Indistinct

No true cleavage

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)

Al ₂ O ₃

Fluorapatite and Ruby Chemical Formula

While comparing Fluorapatite and Ruby 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 Fluorapatite and Ruby chemical formula.

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

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Fluorapatite Vs Hibonite

Fluorapatite Vs Hackmanite

Fluorapatite and Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fluorapatite and Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fluorapatite and Ruby Optical Properties during the identification of gemstone. Specific gravity of Fluorapatite is 3.97-4.05 whereas that of Ruby is 3.97-4.05.