Umbalite and Rhodolite Physical Properties

Umbalite

Rhodolite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.62-4.333.84

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalGemdat.org, Management Team (2012)

Conchoidal

1.6 Cleavage

Not Available

none, may show indistinct parting

1.7 Mohs Hardness

7-7.57-7.5

2 10

1.8 Chemical Composition

Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)

(Mg,Fe)₃Al₂Si₃O₁₂

Umbalite and Rhodolite Chemical Formula

While comparing Umbalite 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 Umbalite and Rhodolite chemical formula.

Chemical formula of Umbalite- Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)
Chemical formula of Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂

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Umbalite and Rhodolite Specific Gravity

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