Polyhalite and Hurlbutite Physical Properties

Polyhalite

Hurlbutite

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

2.782.90

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

Perfect on {10 1 }; parting on {010}

None

1.7 Mohs Hardness

3.56

2 10

1.8 Chemical Composition

Not Available

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

Polyhalite and Hurlbutite Chemical Formula

While comparing Polyhalite 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 Polyhalite and Hurlbutite chemical formula.

Chemical formula of Hurlbutite- CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Red Gemstones

Polyhalite Vs Heliotrope

Polyhalite Vs Vanadinite

Polyhalite Vs Jacinth

Polyhalite and Hurlbutite Specific Gravity

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