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Alexandrite

Tsarstone collectors guide

Brazilian alexandrite

Alexandrite is mined sporadically in the Malacacheta. Cat's-eye chrysoberyl is readily available at Teofilo Otoni, albeit in very small sizes, mostly under 0.5 ct. Alexandrite is available in smaller sizes. One excellent eye clean with strong color change alexandrite of about 5 cts was shown at the offices of Stone World in Teofilo Otoni.

Locality details
CountryBrazil
RegionSoutheast Region
ProvinceMinas Gerais
LocalityTeofilo Otoni
Latitude-17.8500
Longitude-41.5000
Altitude1256
Time zoneUTC-3(-2DT)
Locality maps
MapSatellite
Map of Teofilo Otoni Satellite of Teofilo Otoni

Teofilo Otoni located between the stony hills and rocky mountains that are so characteristic of the landscape of the state of Minas Gerais, is Brazil's most important commercial center for colored gemstones, where about 55 percent of the country's output is brought to be sold. It is the beating heart of Brazil's colored gem trade, the town where production from hundreds of small mines dotting the region comes to be bought and sold. Driving through the region, it's common to see tunnels cut into the hillsides -- or, more correctly, the telltale white of the waste rock dumped outside the mine. These are all garimpeiro operations, some literally located in people's backyards.

Most famous chrysoberyl deposits, spread throughout the 1,800 hectares of the FaĆ­sca and Crisolita Basins. The cat's-eye chrysoberyl is about 30 percent of the rough found , although only 10 percent of that is good color. Few years ago, Brazil's environmental agency (IBAMA) shut down the Duarte & Bastos's mine for polluting the local stream and deforesting the region, which can cause serious erosion problems. Now, with only a dozen or so miners left, they're allowed to mine on a limited basis while they implement a 20-year plan to replenish the vegetation and build dams to remove soil sediment from the water.


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Bibliographic details
Page title Brazilian alexandrite, Teafilo Otoni
Author David Weinberg
Website title Alexandrite Tsarstone Collectors Guide
Date published 03 July 2010 05:12 UTC
Date accessed 31 October 2014 17:08 UTC
Permanent link http://www.alexandrite.net/viewpage.html?id=ALXS-001-00010
AMA style
David Weinberg. "Brazilian alexandrite, Teafilo Otoni". In Alexandrite Tsarstone Collectors Guide. July 03, 2010, 05:12 UTC. Available at: http://www.alexandrite.net/viewpage.html?id=ALXS-001-00010. Accessed October 31, 2014.
APA style
"Brazilian alexandrite, Teafilo Otoni". (2010, July 03). In Alexandrite Tsarstone Collectors Guide. Retrieved 17:08, October 31, 2014, from http://www.alexandrite.net/viewpage.html?id=ALXS-001-00010.
Bluebook style
"Brazilian alexandrite, Teafilo Otoni", http://www.alexandrite.net/viewpage.html?id=ALXS-001-00010 (last visited October 31, 2014).
Bluebook: Harvard JOLT style
See Alexandrite Tsarstone Collectors Guide, "Brazilian alexandrite, Teafilo Otoni", http://www.alexandrite.net/viewpage.html?id=ALXS-001-00010 (Information about Brazilian alexandrite findings and mining in Novo Cruzeiro, Brazil.) (as of Oct. 31, 2014, 17:08 GMT).
CBE/CSE style
David Weinberg. "Brazilian alexandrite, Teafilo Otoni". In Alexandrite Tsarstone Collectors Guide. 2010 Jul 03, 05:12 UTC.[Internet], Alexandrite Tsarstone Collectors Guide; 2010 Jul 03, 05:12 UTC [cited 2014 Oct 31]. Available from: http://www.alexandrite.net/viewpage.html?id=ALXS-001-00010.
Chicago style
David Weinberg, "Brazilian alexandrite, Teafilo Otoni", http://www.alexandrite.net/viewpage.html?id=ALXS-001-00010, (accessed October 31, 2014).
MLA style
"Brazilian alexandrite, Teafilo Otoni". Alexandrite Tsarstone Collectors Guide. 03 Jul 2010, 05:12 UTC. 31 Oct 2014 http://www.alexandrite.net/viewpage.html?id=ALXS-001-00010
MHRA style
David Weinberg, "Brazilian alexandrite, Teafilo Otoni", Alexandrite Tsarstone Collectors Guide, 03 July 2010, 05:12 UTC, http://www.alexandrite.net/viewpage.html?id=ALXS-001-00010 [accessed 31 October 2014].
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