Euclase - image 1
Photo by Kevin Czaja

Euclase

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Euclase crystal group, 5.2 cm, from the Alto dos Amâncios pegmatite, Equador, Rio Grande do Norte. Harvard Mineralogical and Geological Museum collection no. 139615, Kevin Czaja photo; bequest of Richard V. Gaines.

Product details

SpeciesEuclase
SizeSmall Cabinet
Dimensions5.2 cm
Added on02/13/2026
LocalityBrazil, Rio Grande do Norte, Equador
Publications
  • Mineralogical Record 56 3 page 268
Current owner
Harvard Mineralogical and Geological Museum

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Previous owners
DateCollectorAcquisition price
—Richard V. GainesNot disclosed

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Euclase
Mineral guide
Learn about Euclase
rare BeAl silicate prized for vivid blue crystals, glassy luster, and sharp terminations; scarce pristine pieces from pegmatites in Brazil.
Euclase
Regional guide
Euclase from Equador
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Locality guide
Equador
A collector's guide to Equador, Brazil: its geology, mining history and notable minerals, illustrated with the 51 specimens documented from this locality on EarthWonders.