Malachite and Natrolite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.25-4.10
2.20-2.26
Fracture
Conchoidal, Conchoidal, Gemstones (2009), Uneven
Uneven, Brittle, Metallic, Gemstones (2009)
Cleavage
Perfect on { 2 01} fair on {010}
Perfect on {110}
Mohs Hardness
3.5-4
5-5.5
Chemical Composition
Cu2CO3(OH)2
Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Malachite and Natrolite Chemical Formula
While comparing Malachite and Natrolite 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 Malachite and Natrolite chemical formula.
- Chemical formula of Malachite- Cu2CO3(OH)2
- Chemical formula of Natrolite- Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Malachite and Natrolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Malachite and Natrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Malachite and Natrolite Optical Properties during the identification of gemstone. Specific gravity of Malachite is 2.20-2.26 whereas that of Natrolite is 2.20-2.26.