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USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 25 - Aug 30
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Description
Weight: 65
This is a fantastic shatter cone from Canada weighing 850 grams and measuring 23x9x4
are natural glass tubes or formations that are created by the heat of lightning strikes
but usually occurs in botryoidal
there are grains of sand still wedged into one of the crevices of the specimen
Samarskite-(Y) Mineral | 3.4 grams | South Platte Pegmatite Mining District | Jefferson County, Colorado, USA Henbury Impactite Weight: 65Samarskite 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,
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