Nepheline and Calcite Physical Properties

Nepheline

Calcite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.652.67-2.73

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

[1010] Poor

Perfect on [10 1 1] three directions with angle of 74° 55

1.7 Mohs Hardness

5-63

2 10

1.8 Chemical Composition

Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

CaCO 3Ulrich Henn and Claudio C.

Nepheline and Calcite Chemical Formula

While comparing Nepheline and Calcite 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 Nepheline and Calcite chemical formula.

Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.

Compare Red Gemstones

Nepheline Vs Pyrope Spessartine

Nepheline Vs Pyrope

Nepheline Vs Prase Opal

Nepheline and Calcite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nepheline and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Calcite Optical Properties during the identification of gemstone. Specific gravity of Nepheline is 2.67-2.73 whereas that of Calcite is 2.67-2.73.