This half size flat presents a diverse collection of characteristic specimens from the famous Mina Ojuela in Durango, Mexico. The dark to brown, partly limonitic matrix provides an impressive background for the vividly colored crystals.
Crystals are clearly visible on many pieces. Wulfenite typically occurs as orange to reddish brown tabular crystals, while Mimetite forms yellow to yellow green crystal aggregates and small prismatic crystals. The association of both minerals on iron rich matrix is typical for this classic locality and gives the collection strong aesthetic and collector appeal.
Geology & Origin
The Mina Ojuela near Mapimí in Durango is one of the most important lead zinc deposits in Mexico and is world renowned for its secondary mineralization. Wulfenite and Mimetite formed in the oxidation zone of sulfide ore bodies through weathering and remobilization processes.
The complex paragenesis of the deposit resulted in the formation of numerous lead arsenate and lead molybdate minerals. Specimens from Mina Ojuela are considered classics among collectors and are internationally appreciated.