Apophyllite and Legrandite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.30-2.50
3.98-4.04
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle
Cleavage
Perfect on (001)
Imperfect, poor one {100}
Mohs Hardness
4.5-5
4.5-5
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
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.