Magnesite and Precious Opal Physical Properties

Magnesite

Precious Opal

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Effervesces in hot HCl

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.92-3.121.98-2.25

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references

1.6 Cleavage

[10 1 1] perfect

Not Available

1.7 Mohs Hardness

3.5-4.55-6.5

2 10

1.8 Chemical Composition

MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

SiO 2 · nH 2OGemdat.org , Management Team (2012)

Magnesite and Precious Opal Chemical Formula

While comparing Magnesite and Precious 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 Magnesite and Precious Opal chemical formula.

Chemical formula of Magnesite- MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)

Compare Yellow Gemstones

Magnesite Vs Mimetite

Magnesite Vs Microlite

Magnesite Vs Mohawkite

Magnesite and Precious Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Magnesite and Precious Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Magnesite and Precious Opal Optical Properties during the identification of gemstone. Specific gravity of Magnesite is 1.98-2.25 whereas that of Precious Opal is 1.98-2.25.