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Carletonite
Carletonite

Milk Opal
Milk Opal



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Carletonite
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Milk Opal

Carletonite and Milk Opal Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.451.98-2.50
1 7.18
👆🏻

Fracture

Conchoidal
Conchoidal

Cleavage

Perfect on {001}, good on {110}
None

Mohs Hardness

4-4.55.5-6.5
2 10
👆🏻

Chemical Composition

KNa 4Ca 4Si 8O 18(CO 3) 4(OH,F) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)
SiO2·nH2O

Carletonite and Milk Opal Chemical Formula

While comparing Carletonite 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 Carletonite and Milk Opal chemical formula.

  • Chemical formula of Carletonite- KNa 4Ca 4Si 8O 18(CO 3) 4(OH,F) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Milk Opal- SiO2·nH2O

Carletonite and Milk Opal Specific Gravity

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