Fluorapatite and Creedite Physical Properties

Fluorapatite

Creedite

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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

3.1-3.252.70

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Indistinct

Perfect on {100}

1.7 Mohs Hardness

54.5

2 10

1.8 Chemical Composition

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

Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

Fluorapatite and Creedite Chemical Formula

While comparing Fluorapatite and Creedite 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 Creedite chemical formula.

Chemical formula of Fluorapatite- Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)
Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

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Fluorapatite and Creedite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fluorapatite and Creedite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fluorapatite and Creedite Optical Properties during the identification of gemstone. Specific gravity of Fluorapatite is 2.70 whereas that of Creedite is 2.70.