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Creedite
Creedite

Bustamite
Bustamite



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Creedite
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Bustamite

Creedite and Bustamite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
Partly soluble in HCl.

Durability

-
-

Specific Gravity

2.703.32-3.43
1 7.18
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Fracture

Uneven, Conchoidal
Conchoidal

Cleavage

Perfect on {100}
{100} perfect; {110} and {1 1 0} good; {010} poor

Mohs Hardness

4.55.5-6
2 10
👆🏻

Chemical Composition

Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
(Ca,Mn2+ )Si 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Creedite and Bustamite Chemical Formula

While comparing Creedite and Bustamite 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 Creedite and Bustamite chemical formula.

  • Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
  • Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Creedite and Bustamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Creedite and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Creedite and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Creedite is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.