Holmquistite and Dumortierite Physical Properties

Holmquistite

Dumortierite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.95-3.133.26-3.41

1 7.18

1.5 Fracture

Not Available

Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

1.6 Cleavage

{210} Perfect

Distinct on {100}, poor on {110}; parting on {001}

1.7 Mohs Hardness

5-67-8.5

2 10

1.8 Chemical Composition

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

AlAl₆O₃BSi₃O₁₈

Holmquistite and Dumortierite Chemical Formula

While comparing Holmquistite and Dumortierite 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 Holmquistite and Dumortierite chemical formula.

Chemical formula of Holmquistite- Li 2[(Mg,Fe2+ ) 3Al 2]Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈

Compare Black Gemstones

Holmquistite Vs Morion

Holmquistite Vs Melanite

Holmquistite Vs Magnetite

Holmquistite and Dumortierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Holmquistite and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Holmquistite and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Holmquistite is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.