Apatite and Phosphosiderite Physical Properties

Apatite

Phosphosiderite

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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

3.16-3.232.74-2.76

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

[0001] indistinct, [1010] indistinct

{010} Perfect, {001} Distinct

1.7 Mohs Hardness

53.5-4

2 10

1.8 Chemical Composition

Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)

Apatite and Phosphosiderite Chemical Formula

While comparing Apatite and Phosphosiderite 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 Apatite and Phosphosiderite chemical formula.

Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Phosphosiderite- Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)

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Apatite and Phosphosiderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Phosphosiderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Phosphosiderite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 2.74-2.76 whereas that of Phosphosiderite is 2.74-2.76.