Friedelite and Legrandite Physical Properties

Friedelite

Legrandite

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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

3.06-3.193.98-4.04

1 7.18

1.5 Fracture

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

Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

{010} Perfect

Imperfect, poor one {100}

1.7 Mohs Hardness

4-54.5-5

2 10

1.8 Chemical Composition

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

Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Friedelite and Legrandite Chemical Formula

While comparing Friedelite and Legrandite 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 Legrandite chemical formula.

Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Friedelite and Legrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Friedelite and Legrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Friedelite and Legrandite Optical Properties during the identification of gemstone. Specific gravity of Friedelite is 3.98-4.04 whereas that of Legrandite is 3.98-4.04.