The gemstone deposits of Brazil: occurrences, production and economic impact

Gem deposits - The Australian Museum

Amethyst Cluster 5.68 with Stand Brazilian Collectible Specimen, Includes Display Case - Mini Museum

a) Emeralds from Carnaíba: inclusions in the form of flecks or

Bionics for Inspiration: A New Look at Brazilian Natural Materials for Application in Sustainable Jewelry

Minerals, Free Full-Text

Amethyst Cluster - SOLD 3.60 with Stand - Brazilian - Mini Museum

PDF] The gemstone deposits of Brazil: occurrences, production and economic impact

PDF) The gemstone deposits of Brazil: Occurrences, production and economic impact

PDF) Brazilian Colored Gemstones in Historical Jewelry

The gemstone deposits of Brazil: occurrences, production and economic impact

Brazilian Quartz Deposits with Special Emphasis on Gemstone Quartz and its Color Treatment

Gemological map of the State of Piauí (Oliveira, 1998 – CPRM).

Anthropic Vulnerability of a Hydrothermal Mineral Deposit and Related Mining Heritage, a Case Study from a Medieval Gold-Silver Mining Area, Telkibánya, Hungary

PDF) Mineralisation of amethyst-bearing geodes in Ametista do Sul (Brazil) from low-temperature sedimentary brines: evidence from monophase liquid inclusions and stable isotopes