Ettringite and Labradorite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Partially soluble in water
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.77
2.69-2.72
Fracture
Not Available
Uneven, Conchoidal, Gems, Sixth Edition (2006)
Cleavage
Perfect on {10 1 0}
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
Mohs Hardness
2-2.5
6-6.5
Chemical Composition
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
(Na,Ca)1-2Si3-2O8
Ettringite and Labradorite Chemical Formula
While comparing Ettringite and Labradorite 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 Ettringite and Labradorite chemical formula.
- Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8
Ettringite and Labradorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ettringite and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Ettringite is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.