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Lepidolite
Lepidolite

Kyanite
Kyanite



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Lepidolite
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Kyanite

Lepidolite and Kyanite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

2.80-2.903.53-3.65
1 7.18
👆🏻

Fracture

Uneven
Splintery

Cleavage

{001} perfect
[100] perfect [010] imperfect with 79° angle between

Mohs Hardness

2.54-7
2 10
👆🏻

Chemical Composition

Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.
Al2SiO5

Lepidolite and Kyanite Chemical Formula

While comparing Lepidolite and Kyanite 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 Lepidolite and Kyanite chemical formula.

  • Chemical formula of Lepidolite- Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.
  • Chemical formula of Kyanite- Al2SiO5

Lepidolite and Kyanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lepidolite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lepidolite and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Lepidolite is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.