Rock Crystal and Neptunite Physical Properties

Rock Crystal

Neptunite

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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

2.653.19-3.23

1 7.18

1.5 Fracture

ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)

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

1.6 Cleavage

Not Available

{110} good

1.7 Mohs Hardness

75-6

2 10

1.8 Chemical Composition

SiO 2Walter Schumann , Gemstones of the world (2001)

KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)

Rock Crystal and Neptunite Chemical Formula

While comparing Rock Crystal and Neptunite 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 Rock Crystal and Neptunite chemical formula.

Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)
Chemical formula of Neptunite- KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Blue Gemstones

Rock Crystal Vs Serendibite

Rock Crystal Vs Scorzalite

Rock Crystal Vs Sardonyx

Rock Crystal and Neptunite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rock Crystal and Neptunite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rock Crystal and Neptunite Optical Properties during the identification of gemstone. Specific gravity of Rock Crystal is 3.19-3.23 whereas that of Neptunite is 3.19-3.23.