Star Sapphire and Milarite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.90-4.05
2.52-2.60
Fracture
Not Available
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
Not Available
{0001} Imperfect, {1120} Imperfect
Mohs Hardness
Not Available
5.5-6
Chemical Composition
Al 2O 3Ulrich Henn and Claudio C.
KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Star Sapphire and Milarite Chemical Formula
While comparing Star Sapphire and Milarite 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 Star Sapphire and Milarite chemical formula.
- Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
- Chemical formula of Milarite- KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Star Sapphire and Milarite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Star Sapphire and Milarite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Milarite Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 2.52-2.60 whereas that of Milarite is 2.52-2.60.