Jacobsite and Uvite Physical Properties

Jacobsite

Uvite

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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

4.76-5.032.97-3.14

1 7.18

1.5 Fracture

Conchoidal, Brittle

Uneven, Conchoidal, Brittle

1.6 Cleavage

None

{1011} Indistinct

1.7 Mohs Hardness

5.5-6.5Not Available

2 10

1.8 Chemical Composition

(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Jacobsite and Uvite Chemical Formula

While comparing Jacobsite and Uvite 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 Jacobsite and Uvite chemical formula.

Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Uvite- Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

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Jacobsite and Uvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jacobsite and Uvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jacobsite and Uvite Optical Properties during the identification of gemstone. Specific gravity of Jacobsite is 2.97-3.14 whereas that of Uvite is 2.97-3.14.