Bloodstone Heliotrope and Andalusite Physical Properties

Bloodstone Heliotrope

Andalusite

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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

2.55-2.703.05-3.21

1 7.18

1.5 Fracture

Not Available

Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

Not Available

Good on {110}, poor on {100}

1.7 Mohs Hardness

6.5-77.5

2 10

1.8 Chemical Composition

SiO 2Arthur Thomas , Gemstones (2009)

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Bloodstone Heliotrope and Andalusite Chemical Formula

While comparing Bloodstone Heliotrope and Andalusite 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 Bloodstone Heliotrope and Andalusite chemical formula.

Chemical formula of Bloodstone Heliotrope- SiO 2Arthur Thomas , Gemstones (2009)
Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Bloodstone Heliotrope and Andalusite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bloodstone Heliotrope and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bloodstone Heliotrope and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Bloodstone Heliotrope is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.