Eudialyte and Calcite Physical Properties

Eudialyte

Calcite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

H 2 SO 4

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.74-3.00

2.67-2.73

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

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

Perfect on [10 1 1] three directions with angle of 74° 55

1.7 Mohs Hardness

5-5.5

1.8 Chemical Composition

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

CaCO 3Ulrich Henn and Claudio C.

Eudialyte and Calcite Chemical Formula

While comparing Eudialyte and Calcite 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 Calcite 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 Calcite- CaCO 3Ulrich Henn and Claudio C.

Compare Brown Gemstones

Eudialyte Vs Franklinite

Eudialyte Vs Fluorite

Eudialyte Vs Fluorapatite

Eudialyte and Calcite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Eudialyte and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Eudialyte and Calcite Optical Properties during the identification of gemstone. Specific gravity of Eudialyte is 2.67-2.73 whereas that of Calcite is 2.67-2.73.