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

$ 15.50

4.8
(708)
In stock
Description

The good gem guide

Ethical Mining Practices: Where StoneBridge Stands Blogs — StoneBridge Imports – Stonebridge Imports

PDF) Contributions to improve sustainability conditions in gemstonebenefiting companies

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

Contributions to improve sustainability conditions in gemstonebenefiting companies

PDF) A Review of Gemstone Occurrences, Provenance, and Origins in Nigeria

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

Minerals, Free Full-Text

Brazilianite - Wikipedia

PDF) 500 years of mining in Brazil: a brief review Silvia Fernanda de Mendonça Figueirôa

Mining - Brazil - tax, import, export, growth, annual, system, future, power, sector