Educational 18PCS Mineral and Rocks collection specimen   
Packed in transparent wooden case,
Size : 220*125*50

Specifications :-    
Hematite
Talc
Magnetite
Quartz
Orthoclase
Graphite
Granite
Pyrite
Gritstone
Muscovite
Shale
Calcite
Slate
Marble
Obsidian
Gypsum
Basalt
Kaolinite