Home > American Minerals II – April 7 > MS1566 Euchroite
Euchroite - Sold
- Copper Cliff mine
- Cramer Creek
- Missoula County
- Montana
- U.S.A.
- 1.5 by 0.9 by 0.9 cm – Thumbnail specimen (fits into a 2.5 cm cube)
Euchroite is a hydrous copper arsenate. Breithaupt (1823) first named euchroite in his Vollständige Characteristik des Mineral-Systems. The mineral name recognizes its vibrant color by combining Greek roots eu, beautiful and chros, color. Berry (1951) established the currently accepted chemical formula by determining the unit cell contents of the mineral.
This specimen is a crystal group of euchroite, with individuals to 7 mm. These specimens were collected by Bart Cannon (1950-2019) in the 1970s or 1980s.
