Gedrite and Caledonite Physical Properties

Gedrite

Caledonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.15-3.2595.6-5.76

1 7.18

1.5 Fracture

Not Available

Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)

1.6 Cleavage

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

[001] perfect; [100] distinct

1.7 Mohs Hardness

5.5-62.5-3

2 10

1.8 Chemical Composition

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

Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

Gedrite and Caledonite Chemical Formula

While comparing Gedrite and Caledonite 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 Gedrite and Caledonite chemical formula.

Chemical formula of Gedrite- (Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

Compare Brown Gemstones

Gedrite Vs Hibonite

Gedrite Vs Hessonite

Gedrite Vs Jacobsite

Gedrite and Caledonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gedrite and Caledonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gedrite and Caledonite Optical Properties during the identification of gemstone. Specific gravity of Gedrite is 5.6-5.76 whereas that of Caledonite is 5.6-5.76.