Mineral description : Macedonite

Mineral class	Oxides : Hematite - Ilmenite - Magnetite group.
Chemical formula	PbTiO3
Crystal system	Tetragonal
Habitus	Aggregates, crystals prismatic.
Cleavage	None.
Hardness	5.5
Density	7.82
Color	Black, brownish black to brown.
Streak	Yellowish gray.
Luster	Vitreous, opaque.
Description
Occurance
Associates
Notes	Type Locality: Crni Kamen, Prilep, Macedonia, Former Yugoslavia. Discovered in 1971 by Radusinovic & Markov. Reference : American Mineralogist, volume 056, pp. 387-394(1971) "Långban, the mines, their minerals...", D Holtstam & J Langhof, 1999
Localities	A rare mineral in scandinavia. Sweden : Långban, Värmland. As microscopic grains in hematite and magnetoplumbite together with mica, kentrolite and hedyphane. Found by a Dutch researc group. Also found at the mine dump as yellowish grains up to a mm in size together with celsian, cymrite, melanotekite, hematite, andradite, magnetoplumbite and other minerals.

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