Jade and Phlogopite Physical Properties

Jade

Phlogopite

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1 Physical Properties

1.1 Tenacity

Not Available

Tough

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.382.78-2.85

1 7.18

1.5 Fracture

Gemstones of the world (2001), Difficult, Splintery

None, Uneven

1.6 Cleavage

1 or 2,2 prismatic.

Perfect basal (001)

1.7 Mohs Hardness

6-72-2.5

2 10

1.8 Chemical Composition

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

Not Available

Jade and Phlogopite Chemical Formula

While comparing Jade and Phlogopite 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 Phlogopite chemical formula.

Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

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Jade and Phlogopite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jade and Phlogopite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jade and Phlogopite Optical Properties during the identification of gemstone. Specific gravity of Jade is 2.78-2.85 whereas that of Phlogopite is 2.78-2.85.