Peridot and Phosphophyllite Physical Properties

Peridot

Phosphophyllite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

1.54-1.553.07-3.13

1 7.18

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Fracture

Conchoidal

Conchoidal, Uneven

Cleavage

Poor

{100} Perfect, {010} Distinct, {102} Distinct

Mohs Hardness

6.5-73-3.5

2 10

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Chemical Composition

(Mg,Fe)₂SiO₄

Zn 2(Fe2+ ,Mn2+ )(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Peridot and Phosphophyllite Chemical Formula

While comparing Peridot and Phosphophyllite 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 Peridot and Phosphophyllite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Phosphophyllite- Zn 2(Fe2+ ,Mn2+ )(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Peridot and Phosphophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Phosphophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Phosphophyllite Optical Properties during the identification of gemstone. Specific gravity of Peridot is 3.07-3.13 whereas that of Phosphophyllite is 3.07-3.13.