Friedelite and Ettringite Physical Properties

Friedelite

Ettringite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Partially soluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

3.06-3.191.77

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

{010} Perfect

Perfect on {10 1 0}

1.7 Mohs Hardness

4-52-2.5

2 10

1.8 Chemical Composition

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

Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Friedelite and Ettringite Chemical Formula

While comparing Friedelite and Ettringite 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 Ettringite chemical formula.

Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Compare Red Gemstones

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Friedelite Vs Hydrogrossular

Friedelite Vs Hibonite

Friedelite and Ettringite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Friedelite and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Friedelite and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Friedelite is 1.77 whereas that of Ettringite is 1.77.