Opal and Ferro-axinite Axinite-Fe Physical Properties

Opal

Ferro-axinite Axinite-Fe

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Physical Properties

Tenacity

BrittleWalter Schumann

Solubility

hot salt water

Durability

Specific Gravity

1.98-2.253.25-3.28

1 7.18

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Fracture

Conchoidal

Uneven

Cleavage

None

{100} Distinct, {001} Poor, {110} Poor

Mohs Hardness

5-6.56.5-7

2 10

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Chemical Composition

SiO₂ · nH₂O

Ca2Fe++Al2BO3Si4O12(OH)

Opal and Ferro-axinite Axinite-Fe Chemical Formula

While comparing Opal and Ferro-axinite Axinite-Fe 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 Opal and Ferro-axinite Axinite-Fe chemical formula.

Chemical formula of Opal- SiO₂ · nH₂O
Chemical formula of Ferro-axinite Axinite-Fe- Ca2Fe++Al2BO3Si4O12(OH)

Compare Semi Precious Gemstones

Opal Vs Schorlomite

Opal Vs Simpsonite

Opal Vs Spessartine

Opal and Ferro-axinite Axinite-Fe Specific Gravity

Another important criteria for qualitative analysis of gemstones is Opal and Ferro-axinite Axinite-Fe Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Ferro-axinite Axinite-Fe Optical Properties during the identification of gemstone. Specific gravity of Opal is 3.25-3.28 whereas that of Ferro-axinite Axinite-Fe is 3.25-3.28.