Provenite

Mimoso do Sul

AreaDraft data

21.0639° S, 41.3658° W · ± 10 km

Aquamarine and Beryl from Espírito Santo, Brazil, with photos of specimens from this locality.

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Minerals found here

AquamarineBeryl

Aquamarine at Mimoso do Sul

Cluster of tapered, glassy sea-green aquamarine crystals from the Mimoso do Sul Mine, Espírito Santo, Brazil.
Cluster of tapered, glassy sea-green aquamarine crystals from the Mimoso do Sul Mine, Espírito Santo, Brazil.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
Tapered aquamarine crystal 4.8 cm long from the Mimoso do Sul Mine, Espírito Santo, Brazil.
Tapered aquamarine crystal 4.8 cm long from the Mimoso do Sul Mine, Espírito Santo, Brazil.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
Gemmy blue-green aquamarine crystal with a tapered termination from Mimoso do Sul, Brazil.
Gemmy blue-green aquamarine crystal with a tapered termination from Mimoso do Sul, Brazil.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
Formula
Be₃Al₂Si₆O₁₈
Morphology
Slender crystals with tapered terminations, single or in clusters
Typical size
About 5-7.5 cm
Color / luster
Sea-green to blue-green, glassy and lustrous
Availability
Unknown

Sources: SRC-764

About Aquamarine →

Beryl at Mimoso do Sul

Slender, tapered greenish-yellow heliodor crystal about 4.6 cm long from the Mimoso do Sul mine, Espírito Santo.
Slender, tapered greenish-yellow heliodor crystal about 4.6 cm long from the Mimoso do Sul mine, Espírito Santo.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
Another view of the tapered heliodor crystal from the Mimoso do Sul mine, Espírito Santo.
Another view of the tapered heliodor crystal from the Mimoso do Sul mine, Espírito Santo.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
Formula
Be₃Al₂Si₆O₁₈
Morphology
Slender prismatic crystals, one with an unusual tapered form
Typical size
Crystals to about 4.6 cm long
Color / luster
Greenish-yellow (heliodor), gemmy, good luster

Sources: SRC-717 SRC-716

About Beryl →

Geology of the locality

Setting
Granitic pegmatites of the Eastern Brazilian Pegmatite Province
Region
Espírito Santo
Country
Brazil

Coordinates of the town of Mimoso do Sul from Wikipedia (village level). The specimen labels name the 'Mimoso do Sul Mine'; the exact pegmatite is not identified.

Sources: SRC-715 SRC-716

Sources

  1. SRC-715 · Website
    Mimoso do SulWikipedia contributors · Wikipedia
  2. SRC-716 · Article
    Geoquímica de Feldspato, Mica, Berilo e Turmalina e Geocronologia U-Pb em Monazita dos Pegmatitos Fazenda Concórdia e São Domingos - Espírito Santo, BrasilCosta, F.C.; Scholz, R.; Marques, R.A.; Queiroga, G.N.; Castro, M.P. · 2020 · Anuário do Instituto de Geociências 43(3)
  3. SRC-764 · Website
    File:Beryl-146994.jpgRobert M. Lavinsky · Wikimedia Commons
  4. SRC-717 · Website
    File:Beryl-122860.jpgRobert M. Lavinsky · Wikimedia Commons (dealer label)

Draft data from the Provenite workbook. Check entries against the cited sources before relying on them. Photos are open-licence images from Wikimedia Commons; the author and licence are given with each photo.