Topaz and Hollandite Physical Properties

Topaz

Hollandite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.49-3.575.05

1 7.18

1.5 Fracture

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

Brittle, Metallic

1.6 Cleavage

[001] Perfect

Distinct / Good, Prismatic

1.7 Mohs Hardness

84-6

2 10

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

Ba(Mn++++,Mn++)8O16

Topaz and Hollandite Chemical Formula

While comparing Topaz and Hollandite 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 Topaz and Hollandite chemical formula.

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16

Compare Gems for Sagittarius

Topaz Vs Quartz Smoky

Topaz Vs Petoskey Stone

Topaz Vs Pietersite

Topaz and Hollandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Hollandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Hollandite Optical Properties during the identification of gemstone. Specific gravity of Topaz is 5.05 whereas that of Hollandite is 5.05.