Dallasite and Holmquistite Physical Properties

Dallasite

Holmquistite

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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

2.58-2.912.95-3.13

1 7.18

1.5 Fracture

Not Available

1.6 Cleavage

Not Available

{210} Perfect

1.7 Mohs Hardness

6.5-75-6

2 10

1.8 Chemical Composition

Not Available

Li 2[(Mg,Fe2+ ) 3Al 2]Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Dallasite and Holmquistite Chemical Formula

While comparing Dallasite and Holmquistite 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 Dallasite and Holmquistite chemical formula.

Chemical formula of Holmquistite- Li 2[(Mg,Fe2+ ) 3Al 2]Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

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Dallasite and Holmquistite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dallasite and Holmquistite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dallasite and Holmquistite Optical Properties during the identification of gemstone. Specific gravity of Dallasite is 2.95-3.13 whereas that of Holmquistite is 2.95-3.13.