Boracite and Ettringite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Soluble
Partially soluble in water
Durability
Not Available
Not Available
Specific Gravity
2.95-2.96
1.77
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Not Available
Cleavage
None
Perfect on {10 1 0}
Mohs Hardness
7-7.5
2-2.5
Chemical Composition
Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Boracite and Ettringite Chemical Formula
While comparing Boracite 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 Boracite and Ettringite chemical formula.
- Chemical formula of Boracite- Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Boracite and Ettringite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Boracite and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Boracite and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Boracite is 1.77 whereas that of Ettringite is 1.77.