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Tsarstone collectors guide

Brazilian alexandrite

The second largest occurrence of alexandrite in Brazil produced deposits of larger alexandrite, although the majority of stones is occluded and translucent rather than transparent. Fine and gem quality larger alexandrite have been mined in miniscule quantity.

Locality details
RegionSoutheast Region
ProvinceMinas Gerais
LocalityEsmeraldas de Ferros
Time zoneUTC-3(-2DT)
Locality maps
Map of Esmeraldas de Ferros Satellite of Esmeraldas de Ferros

Esmeraldas de Ferros is a very rugged and difficult to access area. Mining is under primitive and dangerous conditions. Some of the smaller alexandrite crystals found are of gem quality, with excellent clarity and strong color change. Many of the larger crystals show a regular pattern of cavities that likely represent inclusions that have weathered away. Others crystals appear to have grown across the foliation of the schist, as shown by trains of micaceous inclusions, which create parting planes and increase susceptibility to physical weathering.

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Bibliographic details
Page title Brazilian alexandrite, Esmeraldas de Ferros
Author David Weinberg
Website title Alexandrite Tsarstone Collectors Guide
Date published 03 July 2010 05:12 UTC
Date accessed 09 October 2015 09:55 UTC
Permanent link
AMA style
David Weinberg. "Brazilian alexandrite, Esmeraldas de Ferros". In Alexandrite Tsarstone Collectors Guide. July 03, 2010, 05:12 UTC. Available at: Accessed October 09, 2015.
APA style
"Brazilian alexandrite, Esmeraldas de Ferros". (2010, July 03). In Alexandrite Tsarstone Collectors Guide. Retrieved 09:55, October 09, 2015, from
Bluebook style
"Brazilian alexandrite, Esmeraldas de Ferros", (last visited October 09, 2015).
Bluebook: Harvard JOLT style
See Alexandrite Tsarstone Collectors Guide, "Brazilian alexandrite, Esmeraldas de Ferros", (Information about Brazilian alexandrite findings and mining in Esmeraldas de Ferros, Brazil.) (as of Oct. 09, 2015, 09:55 GMT).
CBE/CSE style
David Weinberg. "Brazilian alexandrite, Esmeraldas de Ferros". In Alexandrite Tsarstone Collectors Guide. 2010 Jul 03, 05:12 UTC.[Internet], Alexandrite Tsarstone Collectors Guide; 2010 Jul 03, 05:12 UTC [cited 2015 Oct 09]. Available from:
Chicago style
David Weinberg, "Brazilian alexandrite, Esmeraldas de Ferros",, (accessed October 09, 2015).
MLA style
"Brazilian alexandrite, Esmeraldas de Ferros". Alexandrite Tsarstone Collectors Guide. 03 Jul 2010, 05:12 UTC. 09 Oct 2015
MHRA style
David Weinberg, "Brazilian alexandrite, Esmeraldas de Ferros", Alexandrite Tsarstone Collectors Guide, 03 July 2010, 05:12 UTC, [accessed 09 October 2015].
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