Spinel and Piemontite Physical Properties

Spinel

Piemontite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

none

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.64-3.66Not Available

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Uneven, Splintery

1.6 Cleavage

None, but may exhibit slight parting

[001] good, [100] distinct

1.7 Mohs Hardness

86-6.5

2 10

1.8 Chemical Composition

MgAl₂O₄

Not Available

Spinel and Piemontite Chemical Formula

While comparing Spinel and Piemontite 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 Spinel and Piemontite chemical formula.

Chemical formula of Spinel- MgAl₂O₄

Compare Gems for Scorpio

Spinel Vs Charoite

Spinel Vs Ametrine

Spinel Vs Azurmalachite

Spinel and Piemontite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Piemontite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Piemontite Optical Properties during the identification of gemstone. Specific gravity of Spinel is Not Available whereas that of Piemontite is Not Available.