Click on thumbnails for a larger image. Please be patient since some of these pages of thumbnail images take some time to load. These mineral photos are copyrighted by their owners and may not be used without permission.
Menezesite: Ba2MgZr4(BaNb12O42)·12H2O
Comments: Orange rhombododecahedral crystals of menezesite to 0.75mm on matrix. Location: Jacupiranga mine, Cajati county, Sao Paulo, Brazil. Scale: Picture size 1 cm. © Tom Loomis / Dakota Matrix
Comments: Brownish-red rhombododecahedral crystals of menezesite over calcite (with tiny black tochilinite inclusions). AmMin v93:82. Location: Jacupiranga mine, in Cajati county, São Paulo state, Brazil. Scale: Crystal size 0.5 mm. © American Mineralogist