Pectolite and Gedrite Physical Properties

Pectolite

Gedrite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.74-2.903.15-3.259

1 7.18

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Fracture

Uneven, Splintery

Cleavage

Perfect on {100} and {001}

Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.

Mohs Hardness

4.5-55.5-6

2 10

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Chemical Composition

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

(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Pectolite and Gedrite Chemical Formula

While comparing Pectolite and Gedrite 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 Gedrite chemical formula.

Chemical formula of Pectolite- Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
Chemical formula of Gedrite- (Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Compare Colorless Gems

Pectolite Vs Orthoclase

Pectolite Vs Oligoclase

Pectolite Vs Muscovite

Pectolite and Gedrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pectolite and Gedrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pectolite and Gedrite Optical Properties during the identification of gemstone. Specific gravity of Pectolite is 3.15-3.259 whereas that of Gedrite is 3.15-3.259.