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Boracite
Boracite

Anhydrite
Anhydrite



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Boracite
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Anhydrite

Boracite and Anhydrite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

Soluble
-

Durability

-
-

Specific Gravity

2.95-2.962.90-2.98
1 7.18
👆🏻

Fracture

Conchoidal
Conchoidal

Cleavage

None
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

Mohs Hardness

7-7.53.5
2 10
👆🏻

Chemical Composition

Mg 3B 7O 13ClMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
CaSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Boracite and Anhydrite Chemical Formula

While comparing Boracite and Anhydrite 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 Boracite and Anhydrite chemical formula.

  • Chemical formula of Boracite- Mg 3B 7O 13ClMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Anhydrite- CaSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Boracite and Anhydrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Boracite and Anhydrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Boracite and Anhydrite Optical Properties during the identification of gemstone. Specific gravity of Boracite is 2.90-2.98 whereas that of Anhydrite is 2.90-2.98.