Spessartine and Cobaltite Physical Properties

Spessartine

Cobaltite

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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

4.12-4.186.3

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Conchoidal, Brittle

UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic

1.6 Cleavage

{???} Distinct

{100} Good, {010} Good, {001} Good

1.7 Mohs Hardness

7-7.55.5

2 10

1.8 Chemical Composition

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

CoAsSAnthony et al , Handbook of mineralogy (2001)

Spessartine and Cobaltite Chemical Formula

While comparing Spessartine and Cobaltite 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 Cobaltite chemical formula.

Chemical formula of Spessartine- Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)

Compare Red Gemstones

Spessartine Vs Tortoiseshell

Spessartine Vs Triplite

Spessartine Vs Tourmaline

Spessartine and Cobaltite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spessartine and Cobaltite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spessartine and Cobaltite Optical Properties during the identification of gemstone. Specific gravity of Spessartine is 6.3 whereas that of Cobaltite is 6.3.