Origin: Maria Mine, Agia Varvara Mines (St Barbara Mines), Sounion Area,
Lavrion District, Attikí (Attica; Attika) Prefecture, Greece
Sample size: area 8 mm
Owner: Steve Rust
Origin: Penberthy Croft mine, St Hilary, Cornwall, England, UK
Sample size: 1 mm crystals (top left), mimetite crystals to around 1 mm, with
greyish balls of
scorodite.
The mimetite is coated by pale brown
hidalgoite, and later
carminite
(top right), pale brown crystals to 0.8 mm (2nd row left), crystals to 0.7 mm
on gossan (2nd row right), colourless prismatic crystals of mimetite to 1.2
mm, with tapering multiple terminations. On yellow crystalline
segnitite (3rd
row left), 2.5 mm crystalline mass of mimetite. The unusual blue colour may be
due to a small copper content (3rd row right), mimetite crystals to 1.2 mm
(4th row left), rounded crystals to 1 mm (4th row right), 1.2 mm translucent
greenish mimetite crystal (bottom left), colourless mimetite crystals to 0.3
mm on green
bayldonite (bottom right)
Owner: Steve Rust
Photo courtesy of:
