This is an essential set for any rock collector. Excellent variety. None of these are included in the original Discovery Box collection.

Includes:
Sandstone
Selenite Rose
Granite
Scoria Volcanic Rock
Limestone
Pumice
Sulfur

EXTRA -  An arrowhead is included.  No, it's not real, but it's quite cool.

Quantity: 7 pieces
Size: 1" - 2.5" each