This sample is cut flat on four sides. The front and back are not.
This is a really nice sample - gneiss!
The Acasta Gneiss is a rock outcrop formed during the Hadean Eon, in the Northwest Territories, Canada, and estimated to be about 4.03 Ga. It is the oldest known exposed rock outcrop in the world. The Acasta Gneiss is named for the nearby Acasta River east of Great Slave Lake some 350 km north of Yellowknife. The rock exposed in the outcrop formed just over four billion years ago; an age based on radiometric dating of zircon crystals.
Sample comes in a clear see-thru mineral box with guaranteed authenticity.
Size: About 7/8" W X " H X 1 3/8" H X " X 5/8" D, Weight: 29 grams
The Acasta outcrop is found in a very remote area of the Tlicho land settlement.
Great specimen for that special collection!
This is the exact one you will receive.
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