Friedelite and Bytownite Physical Properties

Friedelite

Bytownite

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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

3.06-3.192.72-2.75

1 7.18

1.5 Fracture

UnevenArthur Thomas, Gemstones (2009) Tough, UnevenArthur Thomas, Gemstones (2009) Tough, Brittle, Uneven

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

{010} Perfect

Perfect on [001], good on [010], imperfect on [110]

1.7 Mohs Hardness

4-56-6.5

2 10

1.8 Chemical Composition

Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Friedelite and Bytownite Chemical Formula

While comparing Friedelite and Bytownite 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 Friedelite and Bytownite chemical formula.

Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
Chemical formula of Bytownite- Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Friedelite and Bytownite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Friedelite and Bytownite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Friedelite and Bytownite Optical Properties during the identification of gemstone. Specific gravity of Friedelite is 2.72-2.75 whereas that of Bytownite is 2.72-2.75.