Eudialyte and Andalusite Physical Properties

Eudialyte

Andalusite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Brittle

H₂SO₄

2.74-3.00

Uneven

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

5-5.5

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

3.05-3.21

Uneven, Subconchoidal, Splintery

Good on {110}, poor on {100}

7.5

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Eudialyte and Andalusite Chemical Formula

While comparing Eudialyte and Andalusite 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 Eudialyte and Andalusite chemical formula.

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Eudialyte and Andalusite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Eudialyte and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Eudialyte Vs Andalusite during the identification of gemstone. Specific gravity of Eudialyte is whereas that of Andalusite is .