Jade and Poldervaartite Physical Properties

Jade

Poldervaartite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.382.91

1 7.18

1.5 Fracture

Gemstones of the world (2001), Difficult, Splintery

Handbook of mineralogy (2001)

1.6 Cleavage

1 or 2,2 prismatic.

None

1.7 Mohs Hardness

6-7Not Available

2 10

1.8 Chemical Composition

Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

Jade and Poldervaartite Chemical Formula

While comparing Jade and Poldervaartite 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 Jade and Poldervaartite chemical formula.

Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆
Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

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Jade and Poldervaartite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jade and Poldervaartite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jade and Poldervaartite Optical Properties during the identification of gemstone. Specific gravity of Jade is 2.91 whereas that of Poldervaartite is 2.91.