Holmquistite and Danburite Physical Properties

Holmquistite

Danburite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.95-3.132.97-3.03

1 7.18

1.5 Fracture

Not Available

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

1.6 Cleavage

{210} Perfect

{001} Poor

1.7 Mohs Hardness

5-67

2 10

1.8 Chemical Composition

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

CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Holmquistite and Danburite Chemical Formula

While comparing Holmquistite and Danburite 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 Danburite 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 Danburite- CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Black Gemstones

Holmquistite Vs Melanite

Holmquistite Vs Morion

Holmquistite Vs Magnetite

Holmquistite and Danburite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Holmquistite and Danburite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Holmquistite and Danburite Optical Properties during the identification of gemstone. Specific gravity of Holmquistite is 2.97-3.03 whereas that of Danburite is 2.97-3.03.