Legrandite and Calcite Physical Properties

Legrandite

Calcite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.98-4.04

2.67-2.73

1.5 Fracture

Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

Imperfect, poor one {100}

Perfect on [10 1 1] three directions with angle of 74° 55

1.7 Mohs Hardness

4.5-5

1.8 Chemical Composition

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

CaCO 3Ulrich Henn and Claudio C.

Legrandite and Calcite Chemical Formula

While comparing Legrandite and Calcite 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 Legrandite and Calcite chemical formula.

Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.

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Legrandite and Calcite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Legrandite and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Legrandite and Calcite Optical Properties during the identification of gemstone. Specific gravity of Legrandite is 2.67-2.73 whereas that of Calcite is 2.67-2.73.