Bustamite and Staurolite Physical Properties

Bustamite

Staurolite

Add ⊕

Physical Properties

Tenacity

Brittle

Solubility

Partly soluble in HCl.

Durability

Specific Gravity

3.32-3.433.7-3.8

1 7.18

👆🏻

Fracture

Conchoidal

Subconchoidal, Conchoidal

Cleavage

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

Distinct on {010}

Mohs Hardness

5.5-67-7.5

2 10

👆🏻

Chemical Composition

(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

Bustamite and Staurolite Chemical Formula

While comparing Bustamite and Staurolite 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 Bustamite and Staurolite chemical formula.

Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

Compare Red Gemstones

Bustamite Vs Chambersite

Bustamite Vs Chondrodite

Bustamite Vs Chrome-Chalcedony

Bustamite and Staurolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bustamite and Staurolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bustamite and Staurolite Optical Properties during the identification of gemstone. Specific gravity of Bustamite is 3.7-3.8 whereas that of Staurolite is 3.7-3.8.