Phosphosiderite and Nepheline Physical Properties

Phosphosiderite

Nepheline

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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

2.74-2.762.55-2.65

1 7.18

1.5 Fracture

UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Uneven

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

1.6 Cleavage

{010} Perfect, {001} Distinct

[1010] Poor

1.7 Mohs Hardness

3.5-45-6

2 10

1.8 Chemical Composition

Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)

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

Phosphosiderite and Nepheline Chemical Formula

While comparing Phosphosiderite and Nepheline 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 Phosphosiderite and Nepheline chemical formula.

Chemical formula of Phosphosiderite- Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

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Phosphosiderite and Nepheline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phosphosiderite and Nepheline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosphosiderite and Nepheline Optical Properties during the identification of gemstone. Specific gravity of Phosphosiderite is 2.55-2.65 whereas that of Nepheline is 2.55-2.65.