Spinel and Bloodstone Heliotrope Physical Properties

Spinel

Bloodstone Heliotrope

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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

3.64-3.662.55-2.70

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Not Available

1.6 Cleavage

None, but may exhibit slight parting

Not Available

1.7 Mohs Hardness

86.5-7

2 10

1.8 Chemical Composition

MgAl₂O₄

SiO 2Arthur Thomas , Gemstones (2009)

Spinel and Bloodstone Heliotrope Chemical Formula

While comparing Spinel and Bloodstone Heliotrope 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 Bloodstone Heliotrope chemical formula.

Chemical formula of Spinel- MgAl₂O₄
Chemical formula of Bloodstone Heliotrope- SiO 2Arthur Thomas , Gemstones (2009)

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Spinel and Bloodstone Heliotrope Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Bloodstone Heliotrope Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Bloodstone Heliotrope Optical Properties during the identification of gemstone. Specific gravity of Spinel is 2.55-2.70 whereas that of Bloodstone Heliotrope is 2.55-2.70.