Friedelite and Montebrasite Physical Properties

Friedelite

Montebrasite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.06-3.192.98-3.10

1 7.18

1.5 Fracture

UnevenArthur Thomas, Gemstones (2009) Tough, UnevenArthur Thomas, Gemstones (2009) Tough, Brittle, Uneven

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

{010} Perfect

{100} Perfect, {110} Good, {011} Distinct

1.7 Mohs Hardness

4-55.5-6

2 10

1.8 Chemical Composition

Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

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

Friedelite and Montebrasite Chemical Formula

While comparing Friedelite 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 Friedelite and Montebrasite chemical formula.

Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
Chemical formula of Montebrasite- LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references

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Friedelite and Montebrasite Specific Gravity

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