Phosphophyllite and Topaz Physical Properties

Phosphophyllite

Topaz

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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

3.07-3.133.49-3.57

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

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

[001] Perfect

1.7 Mohs Hardness

3-3.58

2 10

1.8 Chemical Composition

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

Al₂SiO₄(F,OH)₂

Phosphophyllite and Topaz Chemical Formula

While comparing Phosphophyllite and Topaz 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 Phosphophyllite and Topaz chemical formula.

Chemical formula of Phosphophyllite- Zn 2(Fe2+ ,Mn2+ )(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Topaz- Al₂SiO₄(F,OH)₂

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Phosphophyllite and Topaz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phosphophyllite and Topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosphophyllite and Topaz Optical Properties during the identification of gemstone. Specific gravity of Phosphophyllite is 3.49-3.57 whereas that of Topaz is 3.49-3.57.