My
periodic table poster
is now available!
Thorianite.
This is a small black pebble from near Behaera Morocco. It's fairly hot, being composed mostly of thorium.
Source:
SoCal (Nevada), Inc
Contributor:
Theodore Gray
Acquired:
25 September, 2005
Price:
$17
Size:
0.3"
Composition:
Th
O
2