Rock from Afghanistan

jim931 starting to spend too much on rocks Member since August 2017 Posts: 117	Rock from Afghanistan Sept 29, 2019 19:39:38 GMT -5 RocksInNJ likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by jim931 on Sept 29, 2019 19:39:38 GMT -5 Does anyone know what this rock is? A friend of mine acquired it and all we know is it was found in Afghanistan. He asked me to reach out on here to see if anyone had some ideas.

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Rock from Afghanistan Sept 29, 2019 20:27:38 GMT -5

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Post by Deleted on Sept 29, 2019 20:27:38 GMT -5

To me, it looks like either alabaster or banded calcite. First clue would be how easily it scratches. If it seems fairly soft, then perhaps take a small chip and put into strong vinegar to see whether small bubbles form.

There are other possibilities if it is harder (banded fluorite and even some hyalite opal).

rockjunquie Global Moderator Member since March 2012 Posts: 34,956	Rock from Afghanistan Sept 29, 2019 20:45:37 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by rockjunquie on Sept 29, 2019 20:45:37 GMT -5 Onyx?

fernwood misunderstood rock expert Member since May 2016 Posts: 11,965	Rock from Afghanistan Sept 30, 2019 3:44:24 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by fernwood on Sept 30, 2019 3:44:24 GMT -5 Looks like some of the banded Onyx from Mexico. Could be calcite, too.
	Listen to the rock. The rock knows its destiny. It will guide you in fulfilling that. www.facebook.com/Native-Inspirations-1212045702232918/ somethingspecialwi.com/list/member/native-inspirations-5975 www.flickr.com/photos/145230675@N04/albums

MsAli misunderstood rock expert Member since October 2017 Posts: 11,455	Rock from Afghanistan Sept 30, 2019 6:06:18 GMT -5 fernwood likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by MsAli on Sept 30, 2019 6:06:18 GMT -5 Look up Afghanistan banded calcite
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rockjunquie Global Moderator Member since March 2012 Posts: 34,956	Rock from Afghanistan Sept 30, 2019 8:40:32 GMT -5 fernwood likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by rockjunquie on Sept 30, 2019 8:40:32 GMT -5 I got some onyx from Pakistan which shares a lot of border with Afghanistan, so I know there's some out there.

rmf fully equipped rock polisher Member since November 2017 Posts: 1,881	Rock from Afghanistan Oct 22, 2019 4:21:33 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by rmf on Oct 22, 2019 4:21:33 GMT -5 To be a purist it is travertine. which is Mexican Onyx. as in not true onyx. Travertine is CaCO3 and Onyx is SiO2, and Mexican Onyx is CaCO3 as well.

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rocknrob: There was a shop in Portland, don't know if it's still there called Kenny and Zukes who made the absolute best pastrami sandwiches I have ever had. The problem is every restaurant thinks their sandwich is worth $20 now and seldom makes the grade. Nov 12, 2024 9:53:31 GMT -5

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