One of Geoprime's most popular items is the
Class pack of 20 pieces of rocks and minerals
Designed to accommodate teachers
with 15 to 20 students in a classroom, this
size has grown popular with others. The Class pack
of 20 constitutes 20 pieces packaged with a descriptive
label in a resealable plastic bag.

There is basic information on the rock or mineral on each label.
The size of the pieces averages from 1 to 2 inches in at least
two direction and vary in thickness.  
The price per bag for all rocks start at $12.00. Minerals $14.00
Some of the harder to acquire rocks will be
more, say like moon rock. Just kidding
no moon rock here. But what with the price
of fuel these days it wont be long before it
costs the same to go get copper from the UP of Michigan.