Iolite and Milarite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.6-2.7
2.52-2.60
Fracture
Not Available
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
3,1
{0001} Imperfect, {1120} Imperfect
Mohs Hardness
7-7.5
5.5-6
Chemical Composition
Mg2Al4Si5O18
KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Iolite and Milarite Chemical Formula
While comparing Iolite 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 Iolite and Milarite chemical formula.
- Chemical formula of Iolite- Mg2Al4Si5O18
- Chemical formula of Milarite- KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Iolite and Milarite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Iolite and Milarite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Milarite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 2.52-2.60 whereas that of Milarite is 2.52-2.60.