Mineral description : Chrysocolla

Chrysocolla from Pahtohavare.

Mineral class Silicates : Phyllosilicates : Serpentine - Talc - Pyrophyllite group

Chemical formula (Cu,Al)₂H₂Si₂O₅(OH)₄^.nH₂O

Crystal system Orthorombic (probably)

Habitus Earthy masses, micro crystalline crusts or botryoidal crusts.

Cleavage Fracture conchoidal, brittle.

Hardness 2 - 4

Density 1.93 - 2.4

Color Blue, bluish green to green, brown to black when impure.

Streak White.

Luster Vitreous to waxy, earthy. Translucent to opaque.

Description

Occurance Forms in the oxidation zone of copper deposits.

Associates Malachite, tenorite, halloysite, nontronite.

Notes Colors a flame green.
The name comes from the Greek words for gold and glue, since it was one ingredience used in solder for gold.

Localities A few localities exists in Scandinavia. Sweden : A number of localities exists.

Pahtohavare, Kiruna, Lappland. As blue massive aggregates with malachite or as botryoidal crusts covering the sides of cavities. Often with tenorite.
Åmotfors copper mine, Charlottenberg, Värmland. As an alteration of chalcopyrite.
Viscaria, Kiruna, Lappland.
Kirunavaara, Kiruna, Lappland.
Pershyttan, Nora, Västmanland.
Skejatjåkko, Gällivare, Lappland. (GFF 22:307)
Östmark, Torsby, Värmland.
Harstigen, Persberg, Värmland.
Norway : A number of localities exists.

Friedrichsminde, Årdal.
Arendal.
Gulnes.
Straumsheia coppermine.
Holmestrand. In cavities in basalt.
Bandaksli, Telemark.
Finland :

No data available yet.

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Last changed : 2000-10-22

Mineral class	Silicates : Phyllosilicates : Serpentine - Talc - Pyrophyllite group
Chemical formula	(Cu,Al)₂H₂Si₂O₅(OH)₄^.nH₂O
Crystal system	Orthorombic (probably)
Habitus	Earthy masses, micro crystalline crusts or botryoidal crusts.
Cleavage	Fracture conchoidal, brittle.
Hardness	2 - 4
Density	1.93 - 2.4
Color	Blue, bluish green to green, brown to black when impure.
Streak	White.
Luster	Vitreous to waxy, earthy. Translucent to opaque.
Description
Occurance	Forms in the oxidation zone of copper deposits.
Associates	Malachite, tenorite, halloysite, nontronite.
Notes	Colors a flame green. The name comes from the Greek words for gold and glue, since it was one ingredience used in solder for gold.
Localities	A few localities exists in Scandinavia. Sweden : A number of localities exists. Pahtohavare, Kiruna, Lappland. As blue massive aggregates with malachite or as botryoidal crusts covering the sides of cavities. Often with tenorite. Åmotfors copper mine, Charlottenberg, Värmland. As an alteration of chalcopyrite. Viscaria, Kiruna, Lappland. Kirunavaara, Kiruna, Lappland. Pershyttan, Nora, Västmanland. Skejatjåkko, Gällivare, Lappland. (GFF 22:307) Östmark, Torsby, Värmland. Harstigen, Persberg, Värmland. Norway : A number of localities exists. Friedrichsminde, Årdal. Arendal. Gulnes. Straumsheia coppermine. Holmestrand. In cavities in basalt. Bandaksli, Telemark. Finland : No data available yet.