Jade and Ludlamite Physical Properties

Jade

Ludlamite

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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

2.90-3.38

3.1-3.2

1.5 Fracture

Gemstones of the world (2001), Difficult, Splintery

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

1 or 2,2 prismatic.

Vitreous, pearly on cleavage

1.7 Mohs Hardness

6-7

3-4

1.8 Chemical Composition

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

(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Jade and Ludlamite Chemical Formula

While comparing Jade and Ludlamite 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 Ludlamite chemical formula.

Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆
Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Jade and Ludlamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jade and Ludlamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jade and Ludlamite Optical Properties during the identification of gemstone. Specific gravity of Jade is 3.1-3.2 whereas that of Ludlamite is 3.1-3.2.