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Acasta Gneiss Slave Lake Northwest Territories Canada

Acasta Gneiss Slave Lake NW Territories Canada - Sold!
Acasta Gneiss Slave Lake NW Territories Canada - Sold!
Item# JPT-17091
Regular price: $145.00
Sale price: $125.00
Availability: Usually ships the next business day
This item is out-of-stock.

Product Description

Acasta Gneiss NW Territories Canada Large NEW

Nestled in the remote Northwest Territories of northern Canada, in the Slave Lake province, is the oldest and most unique known zircon-bearing evolved crust on Earth, acasta gneiss. The Acasta gneiss rock outcrop complex was formed during the earliest time of our planet's history, the Hadean Eon. The name is taken from the local Acasta River, east of Great Slave Lake some good distance north of Yellowknife. The rock exposed at this outcrop formed some 4.2 billion years ago; an age based on radiometric dating of zircon crystals.

This specimen is from this same age dated outcrop. Slightly weathered, considering the age it should be.

Size: 32mm H X 27mm W X 16mm D

Stands and cube not included.

Ships with tag (shown) and Certificate of Authenticity.