Pectolite and Andalusite Physical Properties

Pectolite

Andalusite

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.74-2.903.05-3.21

1 7.18

1.5 Fracture

Uneven, Gemstones (2009), Splintery

Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect on {100} and {001}

Good on {110}, poor on {100}

1.7 Mohs Hardness

4.5-57.5

2 10

1.8 Chemical Composition

Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Pectolite and Andalusite Chemical Formula

While comparing Pectolite and Andalusite 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 Pectolite and Andalusite chemical formula.

Chemical formula of Pectolite- Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Compare Colorless Gems

Pectolite Vs Phosphosiderite

Pectolite Vs Phosphophyllite

Pectolite Vs Pleonaste

Pectolite and Andalusite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pectolite and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pectolite and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Pectolite is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.