alan p
Jr. Member
. found this rock a few weeks ago,lost it found again. Its off white and has a terracotta reddish coloured covering with more browner crust like covering, the crust covering appears to cover the thicker reddish brown material and also covers the white part, weight 3grm, very faint same colour reddish streak but had to press hard, can make it move only very slightly putting magnet near it but will not stick. I guess it may be quartz but looks more like a dirty very hard chalk or chert I think and the reddish material doesn't add up and no visible metal even though reacts to magnet.