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Howlite
Howlite

Friedelite
Friedelite



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Howlite
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Friedelite

Howlite and Friedelite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.45-2.58
Conchoidal
None
3-3.5
Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
-
-
-
3.06-3.19
Uneven
{010} Perfect
4-5
Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

Howlite and Friedelite Chemical Formula

While comparing Howlite and Friedelite 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 Howlite and Friedelite chemical formula.

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Howlite and Friedelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Howlite and Friedelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Howlite Vs Friedelite during the identification of gemstone. Specific gravity of Howlite is whereas that of Friedelite is .