Opal and Beryl Physical Properties

Opal

Beryl

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1 Physical Properties

1.1 Tenacity

BrittleWalter Schumann

Brittle

1.2 Solubility

hot salt water

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.98-2.252.60-2.90

1 7.18

1.5 Fracture

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

Uneven, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Uneven, Gems, Brittle

1.6 Cleavage

None

Imperfect on {0001}

1.7 Mohs Hardness

5-6.57.5-8

2 10

1.8 Chemical Composition

SiO₂ · nH₂O

Be₃Al₂Si₆O₁₈

Opal and Beryl Chemical Formula

While comparing Opal and Beryl 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 Beryl chemical formula.

Chemical formula of Opal- SiO₂ · nH₂O
Chemical formula of Beryl- Be₃Al₂Si₆O₁₈

Compare Semi Precious Gemstones

Opal Vs Amethyst

Opal Vs Lehsunia

Opal Vs Alexandrite

Opal and Beryl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Opal and Beryl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Beryl Optical Properties during the identification of gemstone. Specific gravity of Opal is 2.60-2.90 whereas that of Beryl is 2.60-2.90.