Alexandrite and Fluorapatite Physical Properties

Alexandrite

Fluorapatite

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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

3.69-3.813.1-3.25

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

1,1 ; 3,2.

Indistinct

1.7 Mohs Hardness

8.55

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

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

Alexandrite and Fluorapatite Chemical Formula

While comparing Alexandrite 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 Alexandrite and Fluorapatite chemical formula.

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

Compare Gems for Scorpio

Alexandrite Vs Gahnospinel

Alexandrite Vs Fluorite

Alexandrite Vs Citrine

Alexandrite and Fluorapatite Specific Gravity

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