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Oligoclase
Oligoclase
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Howlite
Howlite
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Oligoclase
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Oligoclase and Howlite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.62-2.67
Uneven
From the Greek, oligos and kasein, little cleavage.
6-6.5
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
 
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-
-
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

Oligoclase and Howlite Chemical Formula

While comparing Oligoclase and Howlite 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 Oligoclase and Howlite chemical formula.

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Oligoclase and Howlite Specific Gravity

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