nicky
off to a rocking start
Member since August 2018
Posts: 4
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Post by nicky on Dec 31, 2019 10:53:30 GMT -5
Hi guys. I purchased this stone whilst in Antwerp, Belgium. Sadly the store owner only spoke limited English and did not know the translation from Dutch to English for the name of the stone. The Dutch name was "Kiezel Tuff", which I think roughly translates to Volcanic Pebble / Stone. Does anyone have any ideas what it is? Many thanks in advance    |
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Post by roy on Dec 31, 2019 12:52:29 GMT -5
it translates to pebble tuff lol i have a stone like this but i do not know were it came from looks to be a ocean tumbled stone might be some sort of coral
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Post by Pat on Dec 31, 2019 12:58:04 GMT -5
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Deleted
Deleted Member
Member since January 1970
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Post by Deleted on Dec 31, 2019 13:06:18 GMT -5
Although most tuff is porous, some tuffs are layered and are dense enough to take a soft polish (e.g., rhyolitic welded tuffs like "Wonderstone"). Haven't seen any that look like yours, but could be from the volcanic region in Germany just south of the Netherlands, Italy, Canary Islands, France, or elsewhere. Other than suggesting that you google some photos, I can't help with a locale.
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jamesp
Cave Dweller 
Member since October 2012
Posts: 36,602
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Post by jamesp on Dec 31, 2019 16:14:49 GMT -5
Most likely not Pat. It looks as if it has been sitting in organic black muck for many years judging by the dark blueish tint. Mucky salt marshes and mucky bottom acidic rivers turn rocks such a blackish blueish color. |
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nicky
off to a rocking start
Member since August 2018
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Post by nicky on Jan 1, 2020 5:25:51 GMT -5
Thanks so much for your input guys. It's really appreciated 😊
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Post by knave on Jan 1, 2020 12:34:36 GMT -5
That is sure a beautiful rock!
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ben86
starting to shine!
Member since December 2019
Posts: 30
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Post by ben86 on Jan 1, 2020 13:16:23 GMT -5
blue lace quartz?
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Deleted
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Member since January 1970
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Post by Deleted on Jan 1, 2020 13:30:17 GMT -5
Doesn't look translucent enough for that, and too dark. If the word "tuff" hadn't been mentioned, I would have guessed Polish flint, though not the usual color for most of that. |
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nicky
off to a rocking start
Member since August 2018
Posts: 4
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Post by nicky on Jan 1, 2020 16:05:45 GMT -5
It does seem to have very similar characteristics to flint. Could it be blue flint?
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,602
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Post by jamesp on Jan 2, 2020 5:30:59 GMT -5
It resembles banded cherts.
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nicky
off to a rocking start
Member since August 2018
Posts: 4
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Post by nicky on Jan 2, 2020 9:28:14 GMT -5
Oh it does resemble Banded Chert. Brilliant thank you 👍
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zurn
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Member since October 2022
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Post by zurn on Oct 3, 2022 16:46:00 GMT -5
Psilomelane
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zurn
off to a rocking start
Member since October 2022
Posts: 4
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Post by zurn on Oct 3, 2022 16:46:58 GMT -5
Psilomelane
Hard and kinda messy
But I love it
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SirRoxalot
freely admits to licking rocks
Member since October 2003
Posts: 790
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Post by SirRoxalot on Nov 14, 2022 11:19:36 GMT -5
Surely flint or chert.
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