This collection of 20 specimines comes in a durable divided plastic case. |
Specimines range between 1"-2" in at least one direction. Rocks include
obsidian, granite, pumice, basalt, slate, schist, serpentinite, marble,
diatomite, conglomerate, fossil mudstone, chert, and sandstone. Minerals
are quartz, calcite, copper, and gypsum. Plus a container of sand to help
demonstrate the rock cycle. Great for classroom display and manipulatives.
Guidebook is available online at http://msnucleus.org under Updates or for $3.00 when ordering for a printed copy.
This is the revisison of MSN-138-X Mineral and Rock Kit