# Bone or Rock?

**URL:** <https://boards.straightdope.com/t/bone-or-rock/947668>\
**Category:** Factual Questions\
**Created:** [July 30, 2021, 8:41pm UTC](https://boards.straightdope.com/t/bone-or-rock/947668 "2021-07-30T20:41:15Z")\
**Posts on this page:** 2\
**Page:** 2

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**Author:** ![GreysonCarlisle](https://avatars.discourse-cdn.com/v4/letter/g/a87d85/32.png) [@GreysonCarlisle](https://boards.straightdope.com/u/GreysonCarlisle)\
**Post date:** [August 12, 2021, 6:15pm UTC](https://boards.straightdope.com/t/bone-or-rock/947668/21 "2021-08-12T18:15:29Z")

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> [@Darren\_Garrison](#):
>
> > [@GreysonCarlisle](#):
> >
> > I’m not holding out much hope for the little guy. Halfway through the polishing process, and it’s lost a third of its length already.
> 
> They have pills for that now.

Trying to think of a good response, but… :speechless:

We’re not worthy, we’re not worthy!

> [@MrDibble](#):
>
> I still think it would be interesting to drip some acid on it. If you can get some HCl (pool acid, or cleaning muriatic acid), that’s best, but even acetic acid or lemon juice should work in a pinch.

We’ve got some lemon juice strong enough to make my eyes water. If there’s anything left after the next round of polishing, I’ll drip some on, see what happens. Should be a few days.

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<div class="post-metadata">

**Author:** ![GreysonCarlisle](https://avatars.discourse-cdn.com/v4/letter/g/a87d85/32.png) [@GreysonCarlisle](https://boards.straightdope.com/u/GreysonCarlisle)\
**Post date:** [August 23, 2021, 8:37pm UTC](https://boards.straightdope.com/t/bone-or-rock/947668/22 "2021-08-23T20:37:37Z")

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Thought I’d given an update. The rock in question dissolved into several small stones (about the size of a match head, some smaller) after the third round of polishing. They’re now resting comfortably with their similar-sized brethren in a little jar on the mantel.

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