Spessartine and Ruby Physical Properties

Spessartine

Ruby

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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

4.12-4.183.97-4.05

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Conchoidal, Brittle

Conchoidal

1.6 Cleavage

{???} Distinct

No true cleavage

1.7 Mohs Hardness

7-7.59

2 10

1.8 Chemical Composition

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

Al ₂ O ₃

Spessartine and Ruby Chemical Formula

While comparing Spessartine and Ruby 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 Ruby chemical formula.

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

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Spessartine and Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spessartine and Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spessartine and Ruby Optical Properties during the identification of gemstone. Specific gravity of Spessartine is 3.97-4.05 whereas that of Ruby is 3.97-4.05.