Umbalite and Zincite Physical Properties

Umbalite

Zincite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.62-4.335.50-5.90

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Not Available

On {10 1 0}, perfect; parting on {000 1 }

1.7 Mohs Hardness

7-7.54

2 10

1.8 Chemical Composition

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

(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

Umbalite and Zincite Chemical Formula

While comparing Umbalite and Zincite 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 Zincite 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 Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

Compare Gems Found In Africa

Umbalite Vs Villiaumite

Umbalite Vs Vivianite

Umbalite Vs Wax Opal

Umbalite and Zincite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Umbalite and Zincite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Umbalite and Zincite Optical Properties during the identification of gemstone. Specific gravity of Umbalite is 5.50-5.90 whereas that of Zincite is 5.50-5.90.