Androni- The building may belong to the 2nd or 1st century B.C.; cus.
Other copper minerals are percylite (PbCuC1 2 (OH) 2), boleite (3PbCuC1 2 (OH) 2j AgCI), stromeyerite {(Cu, Ag) 2 S}, cubanite (CuS, Fe 2 S 3), stannite (Cu 2 S, FeSnS3), tennantite (3Cu 2 S, As2S3), emplectite (Cu 2 S, Bi 2 S 3), wolfsbergite (Cu 2 S, Sb2S3), famatinite (3Cu 2 S, Sb 2 S 5) and enargite (3Cu2S, As2S5).
His father belonged to the class of Dihkans (the old native country families and landed proprietors of Persia, who had preserved their influence and status under the A ab rule), and possessed an estate in the neighbourhood of Cus (in Khorasan).
The mineral is especially liable to surface alteration, tarnishing with beautiful iridescent colours; a blue colour usually predominates, owing probably to the alteration of the chalcopyrite to covellite (CuS).
It is written on thin vellum in four columns CUs.
