Phlogopite and Creedite Physical Properties

Phlogopite

Creedite

Add ⊕

1 Physical Properties

1.1 Tenacity

Tough

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.78-2.852.70

1 7.18

1.5 Fracture

None, Uneven

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

1.6 Cleavage

Perfect basal (001)

Perfect on {100}

1.7 Mohs Hardness

2-2.54.5

2 10

1.8 Chemical Composition

Not Available

Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

Phlogopite and Creedite Chemical Formula

While comparing Phlogopite and Creedite 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 Creedite chemical formula.

Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

Compare Green Gemstones

Phlogopite Vs Rosasite

Phlogopite Vs Riebeckite

Phlogopite Vs Scorodite

Phlogopite and Creedite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phlogopite and Creedite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phlogopite and Creedite Optical Properties during the identification of gemstone. Specific gravity of Phlogopite is 2.70 whereas that of Creedite is 2.70.