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Brazilianite
Brazilianite

Pyromorphite
Pyromorphite



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Brazilianite
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Pyromorphite

Brazilianite and Pyromorphite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

2.98-2.996.5-7.1
1 7.18
👆🏻

Fracture

Conchoidal
Uneven, Conchoidal

Cleavage

(010) Distinct to good
Imperfect- [10 1 1]

Mohs Hardness

5.53.5-4
2 10
👆🏻

Chemical Composition

NaAl 3(PO 4) 2(OH) 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)

Brazilianite and Pyromorphite Chemical Formula

While comparing Brazilianite 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 Brazilianite and Pyromorphite chemical formula.

  • Chemical formula of Brazilianite- NaAl 3(PO 4) 2(OH) 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)

Brazilianite and Pyromorphite Specific Gravity

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