Ulexite and Hauyne Physical Properties

Ulexite

Hauyne

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Gelatinises in acids

1.3 Durability

Not Available

1.4 Specific Gravity

1.65-1.992.4-2.5

1 7.18

1.5 Fracture

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

Uneven, Conchoidal, Brittle

1.6 Cleavage

{010} Perfect, {110} Perfect

Distinct on {110}

1.7 Mohs Hardness

2-2.55-6

2 10

1.8 Chemical Composition

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

(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2

Ulexite and Hauyne Chemical Formula

While comparing Ulexite and Hauyne 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 Ulexite and Hauyne chemical formula.

Chemical formula of Ulexite- NaCaB 5O 6(OH) 6 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Hauyne- (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2

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Ulexite and Hauyne Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ulexite and Hauyne Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ulexite and Hauyne Optical Properties during the identification of gemstone. Specific gravity of Ulexite is 2.4-2.5 whereas that of Hauyne is 2.4-2.5.