Liddicoatite and Creedite Physical Properties

Liddicoatite

Creedite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.022.70

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal

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

1.6 Cleavage

{0001} Poor

Perfect on {100}

1.7 Mohs Hardness

Not Available4.5

2 10

1.8 Chemical Composition

Ca(Li 2Al)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

Liddicoatite and Creedite Chemical Formula

While comparing Liddicoatite and Creedite 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 Liddicoatite and Creedite chemical formula.

Chemical formula of Liddicoatite- Ca(Li 2Al)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

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Liddicoatite and Creedite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Liddicoatite and Creedite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Liddicoatite and Creedite Optical Properties during the identification of gemstone. Specific gravity of Liddicoatite is 2.70 whereas that of Creedite is 2.70.