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Pollucite
Pollucite

Lepidocrocite
Lepidocrocite



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Pollucite
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Lepidocrocite

Pollucite and Lepidocrocite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Readily soluble in HF
-

Durability

-
-

Specific Gravity

2.86-2.944
1 7.18
👆🏻

Fracture

Conchoidal, Uneven
Uneven

Cleavage

None observed
{010} Perfect

Mohs Hardness

6.5-75
2 10
👆🏻

Chemical Composition

(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
FeO(OH)

Pollucite and Lepidocrocite Chemical Formula

While comparing Pollucite and Lepidocrocite 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 Pollucite and Lepidocrocite chemical formula.

  • Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
  • Chemical formula of Lepidocrocite- FeO(OH)

Pollucite and Lepidocrocite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pollucite and Lepidocrocite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Lepidocrocite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 4 whereas that of Lepidocrocite is 4.