Amphibole- Barkevikite (Ferro-edenite)- Archer Camp, Fresno County, California, USA

Amphibole Group- Barkevikite- a.k.a.  Ferro-edenite
Locality: Archer Camp, Fresno County, California, USA
Dimensions: 6.3 x 5.7 x 3.1 cm
Ex Ray Berry Collection (1928-2017)

Barkevikite is a historical mineral name that was officially discredited in 1978. Material formerly classified as barkevikite is now assigned to ferro-edenite, an amphibole-group mineral typically found in pegmatitic and other alkaline igneous rock formations. Well-formed barkevikite crystals are uncommon compared to more familiar amphiboles such as hornblende or tremolite. Most collector specimens consist of dark prismatic crystals embedded in coarse-grained alkaline rocks.

Ex. Ray Berry Collection. Ray Berry was a respected Colorado mineral collector and mining claim owner whose passion for minerals spanned more than 40 years. He owned and operated several mining claims during his collecting career and was an active member of the Colorado Springs Mineralogical Society, where he served as both Show Committee Chairman and President. Ray was also a dedicated member of Friends of Mineralogy. His collection reflects a lifetime devoted to mineral collecting, mining, and the advancement of the hobby. Ray passed away in 2017.