Eudialyte and Apophyllite Physical Properties

Eudialyte

Apophyllite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

H 2 SO 4

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.74-3.002.30-2.50

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

Perfect on (001)

1.7 Mohs Hardness

5-5.54.5-5

2 10

1.8 Chemical Composition

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

KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Eudialyte and Apophyllite Chemical Formula

While comparing Eudialyte and Apophyllite 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 Apophyllite chemical formula.

Chemical formula of Eudialyte- Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.
Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

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Eudialyte and Apophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Eudialyte and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Eudialyte and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Eudialyte is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.