Phosphophyllite and Prehnite Physical Properties

Phosphophyllite

Prehnite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.07-3.132.80-2.95

1 7.18

1.5 Fracture

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

Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic

1.6 Cleavage

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

Distinct on [001]

1.7 Mohs Hardness

3-3.56-6.5

2 10

1.8 Chemical Composition

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

Ca₂Al₂Si₃O₁₂(OH)

Phosphophyllite and Prehnite Chemical Formula

While comparing Phosphophyllite and Prehnite 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 Prehnite 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 Prehnite- Ca₂Al₂Si₃O₁₂(OH)

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Phosphophyllite and Prehnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phosphophyllite and Prehnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosphophyllite and Prehnite Optical Properties during the identification of gemstone. Specific gravity of Phosphophyllite is 2.80-2.95 whereas that of Prehnite is 2.80-2.95.