The first emerald mine in Brazil, first high-quality stones in 1963. The recognition of vanadium colored beryl as emerald led to a breakthrough for Brazilian colored gems.
The mine has since been flooded by Sobradinho dam (hydro-electric station).
References:
- Groat, L.A., Giuliani, G., Marshall, D.D., and Turner, D. (2008): Emerald deposits and occurrences: A review. Ore Geology Reviews 34, 87-112.
Mineral List: |
Beryl
var: Emerald  | | | | Reference: | [Emeralds of the World English extraLapis Vol. 2 2002 pp24-35 ] |
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Biotite | | | | Reference: | [Emeralds of the World English extraLapis Vol. 2 2002 pp24-35 ] |
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'Chlorite Group' | | | | Reference: | [Emeralds of the World English extraLapis Vol. 2 2002 pp24-35 ] |
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Kaolinite | | | | Reference: | [Emeralds of the World English extraLapis Vol. 2 2002 pp24-35 ] |
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Quartz | | | | Reference: | [Emeralds of the World English extraLapis Vol. 2 2002 pp24-35 ] |
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Talc | | | | Reference: | [Emeralds of the World English extraLapis Vol. 2 2002 pp24-35 ] |
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6 entries listed. 3 valid minerals.
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