Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (3 online) Mindat Auctions

Mariana (Marianna de Itacolumy), Minas Gerais, Southeast Region, Brazil

To view 3d wall of images click here

Multiple photos availableChalcophyllite : Cu18Al2[(OH)9|SO4|AsO4]3 · 33H2O

Mariana (Marianna de Itacolumy), Minas Gerais, Southeast Region, Brazil

7.9 x 6.3 x 3.1 cm. This specimen of drusy crystallized chalcophyllite is a rarity: the only one I have seen from Brazil. Although the crystals are small it is overall a pretty, sparkling specimen with lots of color coverage. Ex. Philadelphia Academy of Sciences Collection.

 © Rob LavinskyPhoto ID: 199621    View Count: 132

Goethite : α-Fe3+O(OH)

Mariana (Marianna de Itacolumy), Minas Gerais, Southeast Region, Brazil

Radiate Goethite cristals. Size 2.5x1.8x1.1cm. Rafael Hernandes Corrêa-Silva Collection
 © BrhoundsPhoto ID: 63048    View Count: 329

Talc : Mg3Si4O10(OH)2

Monsenhor Horta, Mariana (Marianna de Itacolumy), Minas Gerais, Southeast Region, Brazil

Beautiful translucent apple green Tal Crystal. Size 12x7.5x3cm. Rafael Hernandes Corrêa-Silva Collection
 © BrhoundsPhoto ID: 52120    View Count: 621
Page 1 of 1 (1 to 3 of 3 total)
Page: 1

Mineral and/or Locality
Google
 
www.mindat.org Web
Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 29th Nov 2009 10:48:15