Gypsum and Milarite Physical Properties
Tenacity
Flexible
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.20-2.40
  
2.52-2.60
  
Fracture
Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)
  
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic
  
Cleavage
Perfect on {010}, distinct on {100}
  
{0001} Imperfect, {1120} Imperfect
  
Mohs Hardness
2
  
5.5-6
  
Chemical Composition
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
  
KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Gypsum and Milarite Chemical Formula
While comparing Gypsum 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 Gypsum and Milarite chemical formula.
- Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
- Chemical formula of Milarite- KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Gypsum and Milarite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gypsum and Milarite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum and Milarite Optical Properties during the identification of gemstone. Specific gravity of Gypsum is 2.52-2.60 whereas that of Milarite is 2.52-2.60.