AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Morocco > Psilomelane (romanèchite+hollandite+cryptomelane)

Psilomelane (romanèchite+hollandite+cryptomelane) from near Taouz, d'Er-Rissani region, Errachidia Province, Morocco

DESCRIPTION:	No. 80633
Mineral:	Psilomelane (romanèchite+hollandite+cryptomelane)
Locality:	near Taouz, d'Er-Rissani region, Errachidia Province, Morocco
Description:	Mammilary formations to 22 mm of black psilomelane (mixture of oxides of manganese composed of romanèchite, hollandite, cryptomelane, etc.). The surfaces of the psilomelane have slightly dull luster, and are NOT polished like other dealers sell. Ex. Miller #M3797; originally acquired from Don Olson
Overall Size:	6x4x3.5 cm
Crystals:	1-3 mm
Archived:	For reference only

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