Spinel and Serandite Physical Properties

Spinel

Serandite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

none

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.64-3.663.52

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

None, but may exhibit slight parting

{100} Perfect, {001} Perfect

1.7 Mohs Hardness

85-5.5

2 10

1.8 Chemical Composition

MgAl₂O₄

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

Spinel and Serandite Chemical Formula

While comparing Spinel and Serandite 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 Spinel and Serandite chemical formula.

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

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Spinel and Serandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Serandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Serandite Optical Properties during the identification of gemstone. Specific gravity of Spinel is 3.52 whereas that of Serandite is 3.52.