Phosphophyllite and Obsidian Physical Properties

Phosphophyllite

Obsidian

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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

3.07-3.132.35-2.60

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalWalter Schumann, Conchoidal

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

3-3.55-5.5

2 10

1.8 Chemical Composition

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

Not Available

Phosphophyllite and Obsidian Chemical Formula

While comparing Phosphophyllite and Obsidian 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 Obsidian chemical formula.

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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Phosphophyllite and Obsidian Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phosphophyllite and Obsidian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosphophyllite and Obsidian Optical Properties during the identification of gemstone. Specific gravity of Phosphophyllite is 2.35-2.60 whereas that of Obsidian is 2.35-2.60.