Apophyllite KF and Brookite Physical Properties

Apophyllite KF

Brookite

Add ⊕

Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.33-2.373.87-4.14

1 7.18

👆🏻

Fracture

Uneven

Subconchoidal, Conchoidal

Cleavage

Perfect on {001}, imperfect on {110}

Poor on {120}, in traces on {001}

Mohs Hardness

4.5-55.5-6

2 10

👆🏻

Chemical Composition

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Apophyllite KF and Brookite Chemical Formula

While comparing Apophyllite KF and Brookite 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 Apophyllite KF and Brookite chemical formula.

Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)
Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Green Gemstones

Apophyllite KF Vs Nepouite

Apophyllite KF Vs Phlogopite

Apophyllite KF Vs Prismatine

Apophyllite KF and Brookite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apophyllite KF and Brookite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite KF and Brookite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite KF is 3.87-4.14 whereas that of Brookite is 3.87-4.14.