Detailed information
Species
Fluorite, Quartz
Dimensions
49 x 85 x 18
mm
Locality
Wheal Mary Ann Menheniot, Cornwall England
Condition
No recorded repairs
A roughly triangular thin plate of orange-tan Chalcedony has its top surface covered with opaque milky Quartz pseudomorphs after octagonal Fluorite crystals, a classic specimen from Wheal Mary Ann at Menheniot in Cornwall. Characteristic of this locality, the pseudomorphs form the upper four-sided pyramidal faces of each octahedron and measure between 3 and 8 mm across, with part-octahedrons of up to 1.5 cm on edge. A great example of this classic Wheal Mary Ann pseudomorph.
