rocknrob
has rocks in the head
If Costco only sold slabs in bulk...
Member since May 2024
Posts: 611
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Post by rocknrob on Sept 25, 2024 12:19:39 GMT -5
I'm finally going through some of my estate sale finds in the garage when I happened upon this rock. It has almost a stained glass consistency but is super soft (3-ish on Mohs scale). Warm tan colors and nice stripes, no chatoyance. I'm pretty sure it's natural but the only thing I can think of is maybe some kind of common opal perhaps? What say ye folks? - Rob  |
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Post by Pat on Sept 25, 2024 12:37:01 GMT -5
Bacon??? I don’t know…
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rocknrob
has rocks in the head
If Costco only sold slabs in bulk...
Member since May 2024
Posts: 611
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Post by rocknrob on Sept 25, 2024 12:40:28 GMT -5
Maybe a kind of calcite?
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rocknrob
has rocks in the head
If Costco only sold slabs in bulk...
Member since May 2024
Posts: 611
|
Post by rocknrob on Sept 25, 2024 12:41:16 GMT -5
If your bacon looks like that... you may need to purchase some new bacon.  |
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Post by tribeunited on Sept 25, 2024 13:01:21 GMT -5
Looks like travertine, or what they call Banded Onyx. Possibly Fantasy Onyx or Honey Banded Onyx.
As always, its just my guess and I would say if someone tells you different, go with them!
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rocknrob
has rocks in the head
If Costco only sold slabs in bulk...
Member since May 2024
Posts: 611
|
Post by rocknrob on Sept 25, 2024 14:24:19 GMT -5
Looks like travertine, or what they call Banded Onyx. Possibly Fantasy Onyx or Honey Banded Onyx. As always, its just my guess and I would say if someone tells you different, go with them! Definitely not as hard as Onyx, a penny scratched this one. If I were a betting man I would say banded calcite since it's such a softy with more white than orange unless someone else has an idea. It's almost got the look of hardened icing on the polished side. Kind of a weird stone slab really. |
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Post by vegasjames on Sept 25, 2024 15:54:42 GMT -5
Look like banded calcite (calcium carbonate), often mislabeled as "onyx", which is a black and white to black chalcedony (quartz). Try a drop of acid on it, such as vinegar, and see if it fizzes.
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rocknrob
has rocks in the head
If Costco only sold slabs in bulk...
Member since May 2024
Posts: 611
|
Post by rocknrob on Sept 25, 2024 16:00:19 GMT -5
On the money! it started fizzing slightly with a white vinegar on it.
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Post by jasoninsd on Sept 25, 2024 17:03:51 GMT -5
Silver Lace Onyx always comes to mind when I see pieces like this...not because that's what I think it is, but because SLO isn't an actual Onyx...but is actually a Calcite...like James said... Gorgeous looking "Banded Calcite" though!!  |
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