Southwest England

A limonitic matrix criss-crossed with thin veins of azurite and malachite and, at one end shallow depressions lined with deep blue lustrous...

A soft black matrix with a rich scatter of pale yellow micaceous crystals. 3.8cms x 2.5cms x 1.7cms. Wheal Basset, Camborne, Cornwall. ex...

This is an excellent specimen of iridescent bornite pseudomorphing platy hexagonal crystals of chalcocite. 5.2cms x 4.0cms x 3.2cms. Cook's Kitchen,...

An attractive development of small doubly terminated scalenohedral crystals of calcite clustered into groups, which, in cross section, take on a...

An excellent example of thin hexagonal crystals clustered and overgrowing each other to form a series of well defined domes.  No  matrix. 5.5cms x...