Serandite and Spinel Physical Properties

Serandite

Spinel

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

none

1.3 Durability

Not Available

1.4 Specific Gravity

3.523.64-3.66

1 7.18

1.5 Fracture

UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001)

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

{100} Perfect, {001} Perfect

None, but may exhibit slight parting

1.7 Mohs Hardness

5-5.58

2 10

1.8 Chemical Composition

Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)

MgAl₂O₄

Serandite and Spinel Chemical Formula

While comparing Serandite and Spinel 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 Serandite and Spinel chemical formula.

Chemical formula of Serandite- Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Spinel- MgAl₂O₄

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Serandite and Spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Serandite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Serandite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Serandite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.