Pearl and Milk Opal Physical Properties

Pearl

Milk 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

2.60-2.851.98-2.50

1 7.18

1.5 Fracture

Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)

Conchoidal

1.6 Cleavage

none

Not Available

1.7 Mohs Hardness

2.5-4.55.5-6.5

2 10

1.8 Chemical Composition

Not Available

Pearl and Milk Opal Chemical Formula

While comparing Pearl and Milk 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 Pearl and Milk Opal chemical formula.

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Pearl and Milk Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pearl and Milk Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pearl and Milk Opal Optical Properties during the identification of gemstone. Specific gravity of Pearl is 1.98-2.50 whereas that of Milk Opal is 1.98-2.50.