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