Apophyllite and Legrandite Physical Properties

Apophyllite

Legrandite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.30-2.503.98-4.04

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009)

Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Perfect on (001)

Imperfect, poor one {100}

1.7 Mohs Hardness

4.5-54.5-5

2 10

1.8 Chemical Composition

KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

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

Apophyllite and Legrandite Chemical Formula

While comparing Apophyllite 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 Apophyllite and Legrandite chemical formula.

Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Red Gemstones

Apophyllite Vs Blue John

Apophyllite Vs Boulder Opal

Apophyllite Vs Brookite

Apophyllite and Legrandite Specific Gravity

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