Orthoclase and Montebrasite Physical Properties

Orthoclase

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

2.54-2.612.98-3.10

1 7.18

1.5 Fracture

Gems, Uneven

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

1.6 Cleavage

Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.

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

1.7 Mohs Hardness

65.5-6

2 10

1.8 Chemical Composition

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Orthoclase and Montebrasite Chemical Formula

While comparing Orthoclase 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 Orthoclase and Montebrasite chemical formula.

Chemical formula of Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Montebrasite- LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references

Compare Colorless Gems

Orthoclase Vs Phosphosiderite

Orthoclase Vs Phosphophyllite

Orthoclase Vs Phenakite

Orthoclase and Montebrasite Specific Gravity

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