Anhydrite and Pyromorphite Physical Properties

Anhydrite

Pyromorphite

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-2.986.5-7.1

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

Uneven, ConchoidalArthur Thomas, Brittle, Metallic

1.6 Cleavage

Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

Imperfect- [10 1 1]

1.7 Mohs Hardness

3.53.5-4

2 10

1.8 Chemical Composition

CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)

Anhydrite and Pyromorphite Chemical Formula

While comparing Anhydrite and Pyromorphite 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 Anhydrite and Pyromorphite chemical formula.

Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)

Compare Blue Gemstones

Anhydrite Vs Black Opal

Anhydrite Vs Azurmalachite

Anhydrite Vs Beryl

Anhydrite and Pyromorphite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anhydrite and Pyromorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anhydrite and Pyromorphite Optical Properties during the identification of gemstone. Specific gravity of Anhydrite is 6.5-7.1 whereas that of Pyromorphite is 6.5-7.1.