Stichtite and Fire Opal Physical Properties

Stichtite

Fire Opal

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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

2.11-2.201.97-2.22

1 7.18

1.5 Fracture

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

Conchoidal, Conchoidal, Gemstones of the world (2001)

1.6 Cleavage

Perfect on {0001}

Not Available

1.7 Mohs Hardness

Not Available6-6.5

2 10

1.8 Chemical Composition

Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references

Stichtite and Fire Opal Chemical Formula

While comparing Stichtite and Fire Opal 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 Stichtite and Fire Opal chemical formula.

Chemical formula of Stichtite- Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Fire Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references

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Stichtite and Fire Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stichtite and Fire Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stichtite and Fire Opal Optical Properties during the identification of gemstone. Specific gravity of Stichtite is 1.97-2.22 whereas that of Fire Opal is 1.97-2.22.