6PK Raw Biotite Gneiss, Metamorphic Rock Specimens - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Class Pack - Eisco Labs

EISCO 6PK Raw Biotite Gneiss, Metamorphic Rock Specimens - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Class Pack

EISCO 6PK Raw White Sandstone, Sedimentary Rock Specimens - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Class Pack

EISCO 12PK Oolitic Limestone, Sedimentary Rock Specimens - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Class Pack