×

Hematite
Hematite

Alunite
Alunite



ADD
Compare
X
Hematite
X
Alunite

Hematite and Alunite Physical Properties

Add ⊕
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
5.00-5.30
Uneven, ConchoidalWalter Schumann, Conchoidal
None, may show partings on {0001} and {10 1 1}
6
Fe 2O 3Arthur Thomas , Gemstones (2009)
 
Brittle
Soluble
-
2.6-2.9
Conchoidal, Uneven
On {0001}, perfect
3.5-4
KAl3(SO4)2(OH)6

Hematite and Alunite Chemical Formula

While comparing Hematite and Alunite 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 Hematite and Alunite chemical formula.

    >>

Hematite and Alunite Specific Gravity

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