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Plumbogummite
Plumbogummite

Montebrasite
Montebrasite



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Plumbogummite
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Montebrasite

Plumbogummite and Montebrasite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Soluble
-

Durability

-
-

Specific Gravity

4.0142.98-3.10
1 7.18
👆🏻

Fracture

Uneven, Conchoidal
Uneven, Conchoidal

Cleavage

None
{100} Perfect, {110} Good, {011} Distinct

Mohs Hardness

4-55.5-6
2 10
👆🏻

Chemical Composition

PbAl3(PO4)(SO4)(OH)6
LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references

Plumbogummite and Montebrasite Chemical Formula

While comparing Plumbogummite and Montebrasite 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 Plumbogummite and Montebrasite chemical formula.

  • Chemical formula of Plumbogummite- PbAl3(PO4)(SO4)(OH)6
  • Chemical formula of Montebrasite- LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references

Plumbogummite and Montebrasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Plumbogummite and Montebrasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Plumbogummite and Montebrasite Optical Properties during the identification of gemstone. Specific gravity of Plumbogummite is 2.98-3.10 whereas that of Montebrasite is 2.98-3.10.