Jacobsite and Hurlbutite Physical Properties

Jacobsite

Hurlbutite

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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

4.76-5.032.90

1 7.18

1.5 Fracture

Conchoidal, Brittle

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

None

1.7 Mohs Hardness

5.5-6.56

2 10

1.8 Chemical Composition

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

CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Jacobsite and Hurlbutite Chemical Formula

While comparing Jacobsite and Hurlbutite 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 Hurlbutite chemical formula.

Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Hurlbutite- CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Jacobsite and Hurlbutite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jacobsite and Hurlbutite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jacobsite and Hurlbutite Optical Properties during the identification of gemstone. Specific gravity of Jacobsite is 2.90 whereas that of Hurlbutite is 2.90.