Spessartine and Kyanite Physical Properties

Spessartine

Kyanite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.12-4.183.53-3.65

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Conchoidal, Brittle

Splintery, Brittle, Metallic

1.6 Cleavage

{???} Distinct

[100] perfect [010] imperfect with 79° angle between

1.7 Mohs Hardness

7-7.54-7

2 10

1.8 Chemical Composition

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

Not Available

Spessartine and Kyanite Chemical Formula

While comparing Spessartine and Kyanite 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 Spessartine and Kyanite chemical formula.

Chemical formula of Spessartine- Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Spessartine Vs Triplite

Spessartine and Kyanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spessartine and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spessartine and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Spessartine is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.