Eudialyte and Amethyst Physical Properties

Eudialyte

Amethyst

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

H 2 SO 4

insoluble in common solvents

1.3 Durability

Not Available

1.4 Specific Gravity

2.74-3.002.65

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009)

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

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

Indiscernible

1.7 Mohs Hardness

5-5.57

2 10

1.8 Chemical Composition

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

SiO₂

Eudialyte and Amethyst Chemical Formula

While comparing Eudialyte and Amethyst 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 Amethyst 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 Amethyst- SiO₂

Compare Brown Gemstones

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Eudialyte and Amethyst Specific Gravity

Another important criteria for qualitative analysis of gemstones is Eudialyte and Amethyst Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Eudialyte and Amethyst Optical Properties during the identification of gemstone. Specific gravity of Eudialyte is 2.65 whereas that of Amethyst is 2.65.