Detailed information
Species
Olivenite
Dimensions
74 x 45 x 27
mm
Locality
Wheal Unity St. Day United Mines, Gwennap Cornwall, England
Condition
No recorded repairs
A flat plate of iron-stained vein Quartz with a rich coating of deep bottle-green Olivenite crystals to about 6 mm long and covering an area of approximately 3.5 x 4.0 cm. From Wheal Unity, part of the St. Day United mines sett in the parish of Gwennap, Cornwall, the Olivenite forms broad, lath-like, somewhat spear-shaped crystals. Please note that an elongated area of these crystals is damaged due to contact with the adjacent rock while in-situ; this manifests as pale green crystals with a dull lustre and sheared break.
