Natrolite and Chalcedony Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.20-2.26
2.55-2.70
Fracture
Uneven, Brittle, Metallic, Gemstones (2009)
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
Cleavage
Perfect on {110}
Absent
Mohs Hardness
5-5.5
6.5-7
Chemical Composition
Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO2
Natrolite and Chalcedony Chemical Formula
While comparing Natrolite and Chalcedony 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 Natrolite and Chalcedony chemical formula.
- Chemical formula of Natrolite- Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Chalcedony- SiO2
Natrolite and Chalcedony Specific Gravity
Another important criteria for qualitative analysis of gemstones is Natrolite and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Natrolite and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Natrolite is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.