Approximate size of 1 piece: 65mm x 65mm x 8mm
Rocks that need to be crushed and assayed to determine if gold is present can not be visually inspected to determine ore types within
Base Stand Size: 18cm x 14
which means it can change color when exposed to different lighting conditions
5cm x 5cm x 4cmApproximate Weight for 1 piece: 360g
Mammoth Bone Fragment - Fossil Specimen laser quartz Approximate size of 1 piece:Mined from: Seine River Basin, France Era: Pleistocene Epoch Geological Age: ~10,000 Years Old Description: This one of a kind Woolly Mammoth bone fragment from France features a long, gently curved form with a flattened, blade like profile and naturally weathered surface texture. The specimen shows cream, tan, grey, and dark brown fossilized bone tones, with areas of flaking outer cortical bone and exposed porous interior structure visible at the