🔎 UNIDENTIFIED Unidentified rock

[shanks]

Hi all I have an idea what this is. But would like some nutrul opinions. What do you think it could be. Thanks for your time. Unidentified rock

 

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[Tnmountains]

Slag? Melted glass is my opinion.

 

[shanks]

Slag? Melted glass is my opinion.

Thank you. Do you think man made or natural

 

[Robot]

Hi shanks
Welcome to the "Show"!
I agree it may be Melted Glass...but where may this have come from...or where you may live?

NATURAL DARWIN GLASS from METEORITE Impact AUSTRALIA?
Darwin glass is a natural glass found south of Queenstown in West Coast, Tasmania. It takes its name from Mount Darwin in the West Coast Range, where it was first reported, and later gave its name to Darwin Crater, a probable impact crater, and the inferred source of the glass.

The glass is light to dark green, white or black. The glass 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.

The glass is an impactite resulting from the melting of local rocks due to the impact of a large meteorite. The assumed source is a 1.2-kilometer-wide topographic depression known as Darwin Crater. The crater is filled with 230 m of sediments and breccia. A crater of that size would be created by a meteorite 20 to 50 m in diameter and its impact with Earth would release 20 megatons of energy.
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[shanks]

Hi shanks
Welcome to the "Show"!
I agree it may be Melted Glass...but where may this have come from...or where you may live?

NATURAL DARWIN GLASS from METEORITE Impact AUSTRALIA?
Darwin glass is a natural glass found south of Queenstown in West Coast, Tasmania. It takes its name from Mount Darwin in the West Coast Range, where it was first reported, and later gave its name to Darwin Crater, a probable impact crater, and the inferred source of the glass.

The glass is light to dark green, white or black. The glass 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.

The glass is an impactite resulting from the melting of local rocks due to the impact of a large meteorite. The assumed source is a 1.2-kilometer-wide topographic depression known as Darwin Crater. The crater is filled with 230 m of sediments and breccia. A crater of that size would be created by a meteorite 20 to 50 m in diameter and its impact with Earth would release 20 megatons of energy.
.View attachment 2126888

Thank you for your time

 

[dognose]

it could be the core area of a flint nodule.
What area do you live and how was this found? Was it in a creek? a field, a old house site? What exactly?

 

[Clay Diggins]

It's slag glass. Man made.

Flint doesn't have included air bubbles.

 

[shanks]

I downloaded a rock app and it’s saying Moldavite. Tektite.

 

[Clay Diggins]

I see you are in the UK. So you found this in the Czech Republic or southern Germany? Those are the only locations where Moldavite is found.

Moldavite

A green natural glass originating from the impact of a meteorite in Bavaria 15 million years ago (present Ries crater, see ...

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