50 pieces - Mineral Set Quality:Staff Pick There is a flap with

There is a flap with 2 snap buttons for easy access which manage to hold your tool securely in place

Geological Age: 500mya to 200mya

Approximate Size for 1 piece: H 6cm x W 5cm x D 4cm Approximate Weight for 1 piece: 100g

This means they can be cotton buffed at 1200g

and sulfide

50 pieces - Mineral Set Quality:Staff Pick There is a flap withMined from: USA Description: 50 piece mineral set comprised of stones found in USA. Comes with mineral guides shown in photos. The stones are glued to the back page and all together permanently affixed to the cardboard box frame. A great learning and visual set for kids and especially classrooms. Chakra: All Size of 1 Mineral set: 10cm x 35cm x 3. 7cm Approximate Weight of 1 piece: 522g Quantity: 1 (50 piece set) We do our best to buy quality products