Description
Black Obsidian is a highly protective stone that shields against negativity and mental stress
Size approximately: 18mm x 18mm x 16mmWeight: 8g
Approximate Size for 1 piece: 5cm x 4cm x 2cm Approximate Weight for 1 piece: 35g
5cm x 3cm Approximate Weight for 1 piece: 215g
0 Micron - Mirror finish (Light yellow) - 22 000 grit
Mineral Sample Set- 15pcs battery Black Obsidian is a highlyProduct Title: Mineral Sample Sets Tips & Tricks: These are phenomenal sets for teaching kids about stones. They are sample sets with minerals collected around USA. If you want to cross reference what you find in nature, use this set as a guide and reference for comparison. There are some papers that come with the case to assist with education. Made In: USA Quantity: 1 Case Pieces: 15 Size: 18cm x 10. 5cm x 2. 5cm Weight: 110g