Description: Item for auction is a specimen of Darwin Glass, found south of Queenstown in West Coast, Tasmania, Australia. Darwin Glass is an impactite - the result of a large meteorite impact 816,000 years ago. When it struck the earth, the extraterrestrial visitor melted the ground turning it into molten glass and sending it flying in a gigantic splash. The molten material cooled and hardened while twisting and turning in the air, landing sometimes miles away from the point of impact. The first documented specimen of Darwin Glass was discovered in 1915 but the source was not found. This first specimen was found 5 miles from the crater that was eventually discovered in 1972. The crater is 3281 feet across and 656 feet deep. The glass is light to dark green, white or black, and takes the form of twisted masses, fragments or chunks up to 10 cm. Internally it has a flowing texture defined by lines of elliptical bubbles. There are two kinds of Darwin glass when composition is measured. Type 1 is normally white or green whereas type 2 (this specimen) is normally black to dark green. The dark glass contains less silica and more magnesium and iron than the light green glass. The dark glass is also enriched in chromium, nickel and cobalt. A possible explanation for the chemical differences is that, in addition to being mainly composed of melted local metamorphic rock, the type 2 glass also contains a component of extraterrestrial material from the meteorite. Here is your opportunity to own a piece of Darwin Glass, which comes with a Big Kahuna Certificate of Authenticity. Scale cube in photo is 1cm on each side, and not included in sale. Shipping address must be in English, to facilitate customs input at US Postal Service. Non-English addresses cannot be shipped, and may incur additional fees for handling.
Price: 15 USD
Location: Hilo, Hawaii
End Time: 2024-12-07T16:38:01.000Z
Shipping Cost: 6 USD
Product Images
Item Specifics
Restocking Fee: No
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 14 Days
Refund will be given as: Money Back
