Holmquistite and Pezzottaite Physical Properties

Holmquistite

Pezzottaite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.95-3.132.90-3.14

1 7.18

1.5 Fracture

Not Available

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

{210} Perfect

Imperfect; basal

1.7 Mohs Hardness

5-67.5-8

2 10

1.8 Chemical Composition

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

(Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.

Holmquistite and Pezzottaite Chemical Formula

While comparing Holmquistite and Pezzottaite 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 Pezzottaite 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 Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.

Compare Black Gemstones

Holmquistite Vs Melanite

Holmquistite Vs Morion

Holmquistite Vs Magnetite

Holmquistite and Pezzottaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Holmquistite and Pezzottaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Holmquistite and Pezzottaite Optical Properties during the identification of gemstone. Specific gravity of Holmquistite is 2.90-3.14 whereas that of Pezzottaite is 2.90-3.14.