Iolite and Ulexite Physical Properties

Iolite

Ulexite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.6-2.71.65-1.99

1 7.18

1.5 Fracture

Not Available

UnevenAnthony et al, Uneven, UnevenAnthony et al, Uneven, Brittle, Metallic

1.6 Cleavage

3,1

{010} Perfect, {110} Perfect

1.7 Mohs Hardness

7-7.52-2.5

2 10

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

NaCaB 5O 6(OH) 6 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Iolite and Ulexite Chemical Formula

While comparing Iolite and Ulexite 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 Iolite and Ulexite chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
Chemical formula of Ulexite- NaCaB 5O 6(OH) 6 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Iolite and Ulexite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Ulexite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Ulexite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 1.65-1.99 whereas that of Ulexite is 1.65-1.99.