Mohs' Scale of Minerals Hardness Mug theatre 000 pieces with a snug

000 pieces with a snug fit – fun for adults and for older kids who are just a little too grown-up for their own good

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Mohs' Scale of Minerals Hardness Mug theatre 000 pieces with a snugWith it's sleek design and cool color palette, the Mohs' Scale of Mineral Hardness Mug feels just as at home in the field as it does at the breakfast table. Featuring 19 minerals with hardness numbers, chemical formulas, and identifying characteristics, it's the perfect companion for geologists, rock collectors, and anyone who approaches the making of a cup of coffee with scientific rigor. 14 oz. 400 mL Microwave and dishwasher safe. 6012