Acasta Tonalite Gneiss Fragment Rock – The Oldest Known Rock on Earth!


(Actual as seen)

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All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity

Type: Acasta Gneiss (Oldest known rock on earth)
Age: 3.6 – 4 billion years old
Location Found: Northwest Territories, Canada

The Acasta Gneiss is a tonalite gneiss in the Slave craton in the Northwest Territories, Canada. The rock body is exposed on an island about 300 kilometres north of Yellowknife. The rock of the outcrop was metamorphosed 3.58 to 4.031 billion years ago and is the oldest known intact crustal fragment on Earth.

These rare fragments can sometimes come as multiple fragments in one box, the photo is the actual specimen or specimen fragments that will be received.

ACTUAL AS SEEN: The image shows the EXACT specimen you will receive. The specimen has been carefully hand selected and photographed. Measurements are as accurate as possible, though be aware measuring precise dimensions can be difficult from irregular shaped items. Whilst we portray colours as close to life-like as we can, colours will vary if taken in sunlight, indoors, from monitor to monitor and device to device. Once this specimen is sold, we will update this listing with new similar selected item, with a new photo and dimensions so this listing will change after you purchase. The scale cube in the photo is 1cm to give a visual size.

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