Staurolite and Eudialyte Physical Properties

Staurolite

Eudialyte

Add ⊕

Physical Properties

Tenacity

Brittle

Solubility

H₂SO₄

Durability

Specific Gravity

3.7-3.82.74-3.00

1 7.18

👆🏻

Fracture

Subconchoidal, Conchoidal

Uneven

Cleavage

Distinct on {010}

Distinct on {0001} imperfect on {11 2 0}

Mohs Hardness

7-7.55-5.5

2 10

👆🏻

Chemical Composition

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

Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.

Staurolite and Eudialyte Chemical Formula

While comparing Staurolite and Eudialyte 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 Staurolite and Eudialyte chemical formula.

Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Chemical formula of Eudialyte- Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.

Compare Brown Gemstones

Staurolite Vs Radiolarite

Staurolite Vs Kutnohorite

Staurolite Vs Mottramite

Staurolite and Eudialyte Specific Gravity

Another important criteria for qualitative analysis of gemstones is Staurolite and Eudialyte Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Staurolite and Eudialyte Optical Properties during the identification of gemstone. Specific gravity of Staurolite is 2.74-3.00 whereas that of Eudialyte is 2.74-3.00.