page_title: Helgustadir mine
hierarchical_section_title: Helgustadir mine
caption_attribution_description: English: A spar mine at Helgustadir, an abandoned farm in Eastern Iceland.
context_page_description: Helgustadir mine is a mine in the east of Iceland where Iceland spar was mined from the mid-17th century to the 20th century. It is the source of the largest and clearest known Iceland spar specimen and the source of most museum specimens of Iceland spar.
  It was declared a nature reserve in 1975.
context_section_description: Helgustadir mine (Icelandic: Helgustaðanáma) is a mine in the east of Iceland where Iceland spar (a form of transparent calcite) was mined from the mid-17th century to the 20th century. It is the source of the largest and clearest known Iceland spar specimen and the source of most museum specimens of Iceland spar.
  It was declared a nature reserve in 1975.
caption: Helgustadir
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