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Connoisseur's Choice: Goethite, Part 1: Southern Africa.

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Title: Connoisseur's Choice: Goethite, Part 1: Southern Africa.
Authors: Cairncross, Bruce1 (AUTHOR) brucec@uj.ac.za
Source: Rocks & Minerals. Jul/Aug2026, Vol. 101 Issue 4, p334-349. 16p.
Subjects: Goethite, Minerals, Mineral collecting, Ferric hydroxides
Geographic Terms: Southern Africa, South Africa, Namibia, Africa
Abstract: This article focuses on the mineral goethite, an iron oxy-hydroxide (Fe3+O(OH)) commonly formed through oxidative weathering of iron-containing minerals, with an emphasis on specimens from southern Africa, particularly Namibia and South Africa. It details goethite’s physical properties, crystal habits, and its distinction from related minerals such as lepidocrocite and the non-mineral term limonite. The article highlights notable localities including the Vergenoeg fluorite mine and Monument Park in South Africa, the Tsumeb mine and Erongo Mountains in Namibia, and the Ngwenya iron ore mine and Devil’s Reef gold deposit in Eswatini, describing diverse goethite forms and associations with other minerals. It also discusses the mineral’s occurrence as pseudomorphs after other minerals and its aesthetic appeal to collectors, supported by numerous specimen examples and photographs. [Extracted from the article]
Copyright of Rocks & Minerals is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 195177881
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Connoisseur's Choice: Goethite, Part 1: Southern Africa.
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  Data: <searchLink fieldCode="AR" term="%22Cairncross%2C+Bruce%22">Cairncross, Bruce</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> brucec@uj.ac.za</i>
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  Data: <searchLink fieldCode="JN" term="%22Rocks+%26+Minerals%22">Rocks & Minerals</searchLink>. Jul/Aug2026, Vol. 101 Issue 4, p334-349. 16p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Goethite%22">Goethite</searchLink><br /><searchLink fieldCode="DE" term="%22Minerals%22">Minerals</searchLink><br /><searchLink fieldCode="DE" term="%22Mineral+collecting%22">Mineral collecting</searchLink><br /><searchLink fieldCode="DE" term="%22Ferric+hydroxides%22">Ferric hydroxides</searchLink>
– Name: SubjectGeographic
  Label: Geographic Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Southern+Africa%22">Southern Africa</searchLink><br /><searchLink fieldCode="DE" term="%22South+Africa%22">South Africa</searchLink><br /><searchLink fieldCode="DE" term="%22Namibia%22">Namibia</searchLink><br /><searchLink fieldCode="DE" term="%22Africa%22">Africa</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: This article focuses on the mineral goethite, an iron oxy-hydroxide (Fe3+O(OH)) commonly formed through oxidative weathering of iron-containing minerals, with an emphasis on specimens from southern Africa, particularly Namibia and South Africa. It details goethite’s physical properties, crystal habits, and its distinction from related minerals such as lepidocrocite and the non-mineral term limonite. The article highlights notable localities including the Vergenoeg fluorite mine and Monument Park in South Africa, the Tsumeb mine and Erongo Mountains in Namibia, and the Ngwenya iron ore mine and Devil’s Reef gold deposit in Eswatini, describing diverse goethite forms and associations with other minerals. It also discusses the mineral’s occurrence as pseudomorphs after other minerals and its aesthetic appeal to collectors, supported by numerous specimen examples and photographs. [Extracted from the article]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Rocks & Minerals is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1080/00357529.2026.2643131
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      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 16
        StartPage: 334
    Subjects:
      – SubjectFull: Goethite
        Type: general
      – SubjectFull: Minerals
        Type: general
      – SubjectFull: Mineral collecting
        Type: general
      – SubjectFull: Ferric hydroxides
        Type: general
      – SubjectFull: Southern Africa
        Type: general
      – SubjectFull: South Africa
        Type: general
      – SubjectFull: Namibia
        Type: general
      – SubjectFull: Africa
        Type: general
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      – TitleFull: Connoisseur's Choice: Goethite, Part 1: Southern Africa.
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              M: 07
              Text: Jul/Aug2026
              Type: published
              Y: 2026
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