Adamite and Spessartine Physical Properties

Adamite

Spessartine

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.32-4.484.12-4.18

1 7.18

1.5 Fracture

Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic

ConchoidalArthur Thomas, Conchoidal, Brittle

1.6 Cleavage

{101}, good; {010}, poor

{???} Distinct

1.7 Mohs Hardness

3.57-7.5

2 10

1.8 Chemical Composition

Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)

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

Adamite and Spessartine Chemical Formula

While comparing Adamite 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 Adamite and Spessartine chemical formula.

Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
Chemical formula of Spessartine- Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Adamite and Spessartine Specific Gravity

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