Author Topic: Rock?  (Read 1333 times)

0 Members and 1 Guest are viewing this topic.

Offline bushman

  • Member
  • Posts: 282
Rock?
« on: July 09, 2011, 07:50:14 pm »
Does anyone know what type of rock that is in the last two picuters? I was thinking of maybe some type of limestone. Would cooking a rock actually make it harder?http://paleoplanet69529.yuku.com/topic/30942/princeton-BC-knappable-stone