Alunite and Rhodolite Physical Properties

Alunite

Rhodolite

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.6-2.93.84

1 7.18

1.5 Fracture

Conchoidal, Uneven

Conchoidal

1.6 Cleavage

On {0001}, perfect

none, may show indistinct parting

1.7 Mohs Hardness

3.5-47-7.5

2 10

1.8 Chemical Composition

KAl3(SO4)2(OH)6

(Mg,Fe)₃Al₂Si₃O₁₂

Alunite and Rhodolite Chemical Formula

While comparing Alunite and Rhodolite 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 Alunite and Rhodolite chemical formula.

Chemical formula of Alunite- KAl3(SO4)2(OH)6
Chemical formula of Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂

Compare Red Gemstones

Alunite Vs Erythrite

Alunite Vs Kainite

Alunite Vs Piemontite

Alunite and Rhodolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alunite and Rhodolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alunite and Rhodolite Optical Properties during the identification of gemstone. Specific gravity of Alunite is 3.84 whereas that of Rhodolite is 3.84.