Chalcedony and Phosphophyllite Physical Properties

Chalcedony

Phosphophyllite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.703.07-3.13

1 7.18

1.5 Fracture

Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann

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

1.6 Cleavage

Absent

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

1.7 Mohs Hardness

6.5-73-3.5

2 10

1.8 Chemical Composition

SiO₂

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

Chalcedony and Phosphophyllite Chemical Formula

While comparing Chalcedony 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 Chalcedony and Phosphophyllite chemical formula.

Chemical formula of Chalcedony- SiO₂
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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Chalcedony and Phosphophyllite Specific Gravity

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