Phlogopite and Anhydrite Physical Properties

Phlogopite

Anhydrite

Add ⊕

1 Physical Properties

1.1 Tenacity

Tough

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.78-2.852.90-2.98

1 7.18

1.5 Fracture

None, Uneven

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

1.6 Cleavage

Perfect basal (001)

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

1.7 Mohs Hardness

2-2.53.5

2 10

1.8 Chemical Composition

Not Available

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

Phlogopite and Anhydrite Chemical Formula

While comparing Phlogopite and Anhydrite 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 Phlogopite and Anhydrite chemical formula.

Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Compare Green Gemstones

Phlogopite Vs Rosasite

Phlogopite Vs Scorodite

Phlogopite Vs Riebeckite

Phlogopite and Anhydrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phlogopite and Anhydrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phlogopite and Anhydrite Optical Properties during the identification of gemstone. Specific gravity of Phlogopite is 2.90-2.98 whereas that of Anhydrite is 2.90-2.98.