Jade and Spessartine Physical Properties

Jade

Spessartine

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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

2.90-3.384.12-4.18

1 7.18

1.5 Fracture

Gemstones of the world (2001), Difficult, Splintery

ConchoidalArthur Thomas, Conchoidal, Brittle

1.6 Cleavage

1 or 2,2 prismatic.

{???} Distinct

1.7 Mohs Hardness

6-77-7.5

2 10

1.8 Chemical Composition

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

Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Jade and Spessartine Chemical Formula

While comparing Jade and Spessartine 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 Spessartine chemical formula.

Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆
Chemical formula of Spessartine- Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Jade and Spessartine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jade and Spessartine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jade and Spessartine Optical Properties during the identification of gemstone. Specific gravity of Jade is 4.12-4.18 whereas that of Spessartine is 4.12-4.18.