Mineral description : Glaucodot

Two intergrown glaucodote crystals from Håkansboda. Hard to see since it reflects all light.

Another view of the same glaucodote crystal from Håkansboda. Crystal size about 6 mm.

Mineral class	Sulphides : Arsenopyrite löllingite group
Chemical formula	(Co,Fe)AsS
Crystal system	Orthorombic
Habitus	Orthorombic crystals with rectangular dipyramidal octaedric form.
Cleavage	[010] perfect, [101] distinct.
Hardness	5
Density	5.9 - 6.01
Color	Gray to silver white, opaque.
Streak	Black.
Luster	Metallic.
Description
Occurance
Associates
Notes	Type locality : Huasco, Valparaiso, Chile.
Localities	A rare mineral with a good locality in Sweden Håkansboda, Västmanland. As up to 7 cm crystals in chalcopyrite, pyrrhotite or pyrite.

To sulphides index.

Mineral group index.

Main index.

If you have some questions, suggestions or comments you are welcome to write me a line or two.