Melanite and Fluorapatite Physical Properties

Melanite

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

3.70-4.103.1-3.25

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

Not Available

Indistinct

1.7 Mohs Hardness

6.5-75

2 10

1.8 Chemical Composition

Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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

Melanite and Fluorapatite Chemical Formula

While comparing Melanite 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 Melanite and Fluorapatite chemical formula.

Chemical formula of Melanite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Fluorapatite- Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)

Compare Black Gemstones

Melanite Vs Quartz

Melanite Vs Proustite

Melanite Vs Pyrargyrite

Melanite and Fluorapatite Specific Gravity

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