Originally formed as marcasite crystals on the sea bottom, these unusual specimens later were pseudomorphed to hematite and make for amazingly sculptural and attractive examples of crystalography in action. They form all kinds of wild shapes but these are among the more dramatic! They were found in the remote western desert of southwest Egypt and dug up by Parisian dealer Alain Carion and his son. 5.7 x 3.2 x 2.6 cm