Samarskite-(Y) Mineral | 3.4 grams | South Platte Pegmatite Mining District | Jefferson County, Colorado, USA Henbury Impactite 03-00028-F - 38x27 mm /

03-00028-F - 38x27 mm / 182

there are grains of sand still wedged into one of the crevices of the specimen

It weighs 7

are natural glass tubes or formations that are created by the heat of lightning strikes

Samarskite-(Y) Mineral | 3.4 grams | South Platte Pegmatite Mining District | Jefferson County, Colorado, USA Henbury Impactite 03-00028-F - 38x27 mm /Samarskite is a radioactive rare earth mineral. Samarskite crystallizes in the orthorhombic dipyramidal class as black to yellowish brown stubby prisms although it is typically found as anhedral masses. Specimens with a high uranium content are typically metamict and appear coated with a yellow brown earthy rind. Samarskite (Y) is rich in rare earth elements (REEs), niobium (Nb), and tantalum (Ta)all of which are valuable in advanced electronics,