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Phenakite
Phenakite

Creedite
Creedite



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Phenakite
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Creedite

Phenakite and Creedite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.90-2.982.70
Amber
1 7.18
1.5 Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
1.6 Cleavage
Distinct on {11 2 0}, imperfect on {10 1 1}
Perfect on {100}
1.7 Mohs Hardness
7.5-84.5
Amber
2 10
1.8 Chemical Composition
Be 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

Phenakite and Creedite Chemical Formula

While comparing Phenakite and Creedite 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 Phenakite and Creedite chemical formula.

  • Chemical formula of Phenakite- Be 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

Phenakite and Creedite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phenakite and Creedite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phenakite and Creedite Optical Properties during the identification of gemstone. Specific gravity of Phenakite is 2.70 whereas that of Creedite is 2.70.