Dallasite and Staurolite Physical Properties

Dallasite

Staurolite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.58-2.913.7-3.8

1 7.18

1.5 Fracture

Not Available

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

Not Available

Distinct on {010}

1.7 Mohs Hardness

6.5-77-7.5

2 10

1.8 Chemical Composition

Not Available

(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

Dallasite and Staurolite Chemical Formula

While comparing Dallasite and Staurolite 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 Dallasite and Staurolite chemical formula.

Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

Compare Green Gemstones

Dallasite Vs Ekanite

Dallasite Vs Elaeolite

Dallasite Vs Emerald

Dallasite and Staurolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dallasite and Staurolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dallasite and Staurolite Optical Properties during the identification of gemstone. Specific gravity of Dallasite is 3.7-3.8 whereas that of Staurolite is 3.7-3.8.