Rossmanite and Rock Crystal Physical Properties

Rossmanite

Rock Crystal

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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

32.65

1 7.18

1.5 Fracture

Brittle, Metallic

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

1.6 Cleavage

None

Not Available

1.7 Mohs Hardness

Not Available7

2 10

1.8 Chemical Composition

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

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

Rossmanite and Rock Crystal Chemical Formula

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

Chemical formula of Rossmanite- ◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)

Compare Gems Found in America

Rossmanite Vs Serpentine

Rossmanite Vs Serandite

Rossmanite Vs Scolecite

Rossmanite and Rock Crystal Specific Gravity

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