Amethyst and Phosphophyllite Physical Properties

Amethyst

Phosphophyllite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble in common solvents

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.653.07-3.13

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Indiscernible

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

1.7 Mohs Hardness

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

Amethyst and Phosphophyllite Chemical Formula

While comparing Amethyst 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 Amethyst and Phosphophyllite chemical formula.

Chemical formula of Amethyst- 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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Amethyst and Phosphophyllite Specific Gravity

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