Gedrite and Apatite Physical Properties

Gedrite

Apatite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.15-3.2593.16-3.23

1 7.18

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Fracture

Conchoidal, Uneven, Conchoidal to uneven

Cleavage

Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.

[0001] indistinct, [1010] indistinct

Mohs Hardness

5.5-65

2 10

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Chemical Composition

(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

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

Gedrite and Apatite Chemical Formula

While comparing Gedrite and Apatite 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 Gedrite and Apatite chemical formula.

Chemical formula of Gedrite- (Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

Compare Brown Gemstones

Gedrite Vs Magnetite

Gedrite Vs Manganaxinite

Gedrite Vs Mellite

Gedrite and Apatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gedrite and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gedrite and Apatite Optical Properties during the identification of gemstone. Specific gravity of Gedrite is 3.16-3.23 whereas that of Apatite is 3.16-3.23.