Creedite and Narsarsukite Physical Properties

Creedite

Narsarsukite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.702.72-2.83

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Perfect on {100}

Good on {100} and {110}

1.7 Mohs Hardness

4.56-7

2 10

1.8 Chemical Composition

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

Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.

Creedite and Narsarsukite Chemical Formula

While comparing Creedite and Narsarsukite 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 Creedite and Narsarsukite chemical formula.

Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
Chemical formula of Narsarsukite- Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.

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Creedite and Narsarsukite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Creedite and Narsarsukite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Creedite and Narsarsukite Optical Properties during the identification of gemstone. Specific gravity of Creedite is 2.72-2.83 whereas that of Narsarsukite is 2.72-2.83.