Quartz from Brumado, Bahia, Brazil - image 1
Photo by Andrea Carla Ferreira

Quartz from Brumado, Bahia, Brazil

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Amesite in yellowish crystals on quartz with magnesite and spherical aggregates of goethite, 2.3 cm, from the Pedra Preta mine, Brumado. Luiz Menezes collection, MM Gerdau – Museu das Minas e do Metal, Belo Horizonte, Minas Gerais; Andrea Carla Ferreira photo. Inset: Close up of amesite crystals.

Product details

SpeciesQuartzMagnesiteGoethite
SizeThumbnail
Dimensions2.3 cm
Added on03/26/2026
LocalityBrazil, Bahia, Brumado
Publications
  • Mineralogical Record 57 2 page 215
Current owner
Luiz Menezes

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Quartz
Mineral guide
Learn about Quartz
a versatile mineral with clear, milky, and colored varieties; crystal forms, formation clues, and tips for identifying amethyst and citrine.
Quartz
Regional guide
Quartz from Brumado
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Locality guide
Brumado
Brumado, Brazil — renowned magnesite district in Serra das Éguas, yielding glassy magnesite rhombs and tourmalines; a key collector locality with rare minerals.