Phosphophyllite and Amethyst Physical Properties

Phosphophyllite

Amethyst

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

insoluble in common solvents

1.3 Durability

Not Available

1.4 Specific Gravity

3.07-3.132.65

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

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

Indiscernible

1.7 Mohs Hardness

3-3.57

2 10

1.8 Chemical Composition

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

SiO₂

Phosphophyllite and Amethyst Chemical Formula

While comparing Phosphophyllite and Amethyst 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 Amethyst 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 Amethyst- SiO₂

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Phosphophyllite and Amethyst Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phosphophyllite and Amethyst Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosphophyllite and Amethyst Optical Properties during the identification of gemstone. Specific gravity of Phosphophyllite is 2.65 whereas that of Amethyst is 2.65.