Shigaite and Jade Physical Properties

Shigaite

Jade

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1 Physical Properties

1.1 Tenacity

Moderately ﬂexible

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.322.90-3.38

1 7.18

1.5 Fracture

Flexible Flexible fragments.

Gemstones of the world (2001), Difficult, Splintery

1.6 Cleavage

Perfect on {0001}

1 or 2,2 prismatic.

1.7 Mohs Hardness

26-7

2 10

1.8 Chemical Composition

Not Available

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

Shigaite and Jade Chemical Formula

While comparing Shigaite and Jade 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 Shigaite and Jade chemical formula.

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

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Shigaite and Jade Specific Gravity

Another important criteria for qualitative analysis of gemstones is Shigaite and Jade Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Shigaite and Jade Optical Properties during the identification of gemstone. Specific gravity of Shigaite is 2.90-3.38 whereas that of Jade is 2.90-3.38.