Amethyst and Eudialyte Physical Properties

Amethyst

Eudialyte

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

insoluble in common solvents

H 2 SO 4

1.3 Durability

Not Available

1.4 Specific Gravity

2.652.74-3.00

1 7.18

1.5 Fracture

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

Uneven, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

Indiscernible

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

1.7 Mohs Hardness

75-5.5

2 10

1.8 Chemical Composition

SiO₂

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

Amethyst and Eudialyte Chemical Formula

While comparing Amethyst 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 Amethyst and Eudialyte chemical formula.

Chemical formula of Amethyst- SiO₂
Chemical formula of Eudialyte- Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.

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Amethyst and Eudialyte Specific Gravity

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