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Nuummite

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About NuummiteHide

Name:
The name Nuummite which means "derived from Nuuk" in Greenlandic was given to the amphibolitic rock type which was found by the geologist Peter W. Uitterdijk Appel in 1982, near Nuuk (Godthåb). Appel considered first the name nuukite, but renamed it to Nuummite, which in Greenlandish means "from Nuuk". The government granted the company Nuummite Nuuk A/S, wholly owned by Nuuk commune an exploration concession for Nuumite in the Nuuk area, as well as permission to manufacture and sell Nummite jewelry. The company is based in Nuuk.

Among the samples stored in the Mineralogical Museum, Copenhagen, Denmark, collected by L. K. Giesecke in 1810, were samples of this rock from Nuuk.
An unapproved name for a metamorphic rock with iridescent orthoamphiboles (Anthophyllite-Gedrite Series), the material is sometimes cut and polished as a gemstone.

Found in eight localities within 50 km of Nuuk, Greenland.


Visit gemdat.org for gemological information about Nuummite.


Synonyms of NuummiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Anthophyllite-Gedrite Series4 photos of Nuummite associated with Anthophyllite-Gedrite Series on mindat.org.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for NuummiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Appel, Uitterdijk Peter W. & Jensen Aage (1987) A new gem material from Greenland: Iridescent orthoamphibole. Gems and Gemology 1987, XXIII p.36-42. [https://www.gia.edu/doc/A-New-Gem-Material-from-Greenland-Iridescent-Orthoamphibole.pdf]
Bauditz, C.W. (1987) Nuummit fra Nuuk. NAGS-nytt, 14 (4):25-28

Internet Links for NuummiteHide

Localities for NuummiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Denmark
 
  • Greenland
    • Sermersooq
Arthur Thomas, Gemstones (2009), p. 187
Uitterdijk Appel, P.W. & Jensen, A. (1987): A new gem material from Greenland: Iridescent orthoamphibole. Gems & Mineralogy. Spring 1987, 36-42
Finland
 
  • Kainuu
    • Paltamo
Risto Vartiainen (1993), Geological Survey of Finland publication M06/3432/-93/1/43, 1993, Espoo, Finland.
Mineral and/or Locality  
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