Biotite and Chrome-Chalcedony Physical Properties

Biotite

Chrome-Chalcedony

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.7-3.32.55-2.70

1 7.18

1.5 Fracture

Uneven, Even, Yellow, White

Not Available

1.6 Cleavage

Perfect on the {001}

Not Available

1.7 Mohs Hardness

2.5-3.06.5-7

2 10

1.8 Chemical Composition

K(Mg,Fe++)3[AlSi3O10(OH,F)2

SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)

Biotite and Chrome-Chalcedony Chemical Formula

While comparing Biotite and Chrome-Chalcedony 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 Biotite and Chrome-Chalcedony chemical formula.

Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2
Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)

Compare Yellow Gemstones

Biotite Vs Hanksite

Biotite Vs Hauyne

Biotite Vs Gyrolite

Biotite and Chrome-Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Biotite and Chrome-Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Biotite and Chrome-Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Biotite is 2.55-2.70 whereas that of Chrome-Chalcedony is 2.55-2.70.