Meionite and Opal Physical Properties

Meionite

Opal

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1 Physical Properties

1.1 Tenacity

Not Available

BrittleWalter Schumann

1.2 Solubility

Not Available

hot salt water

1.3 Durability

Not Available

1.4 Specific Gravity

2.78

1.98-2.25

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

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

1.6 Cleavage

{???} Distinct, {???} Indistinct

None

1.7 Mohs Hardness

5-6

5-6.5

1.8 Chemical Composition

3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)

SiO₂ · nH₂O

Meionite and Opal Chemical Formula

While comparing Meionite and 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 Meionite and Opal chemical formula.

Chemical formula of Meionite- 3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Opal- SiO₂ · nH₂O

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Meionite and Opal Specific Gravity

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