Lepidolite and Ettringite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Partially soluble in water
Durability
Not Available
Not Available
Specific Gravity
2.80-2.90
1.77
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
Not Available
Cleavage
{001} perfect
Perfect on {10 1 0}
Chemical Composition
Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Lepidolite and Ettringite Chemical Formula
While comparing Lepidolite 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 Lepidolite and Ettringite chemical formula.
- Chemical formula of Lepidolite- Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.
- Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Lepidolite and Ettringite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Lepidolite and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lepidolite and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Lepidolite is 1.77 whereas that of Ettringite is 1.77.