Spinel and Milarite Physical Properties
Tenacity
Not Available
Not Available
Solubility
none
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.64-3.66
2.52-2.60
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
None, but may exhibit slight parting
{0001} Imperfect, {1120} Imperfect
Chemical Composition
MgAl2O4
KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Spinel and Milarite Chemical Formula
While comparing Spinel 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 Spinel and Milarite chemical formula.
- Chemical formula of Spinel- MgAl2O4
- Chemical formula of Milarite- KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Spinel and Milarite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spinel and Milarite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Milarite Optical Properties during the identification of gemstone. Specific gravity of Spinel is 2.52-2.60 whereas that of Milarite is 2.52-2.60.