hypodactylus
spending too much on rocks
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Post by hypodactylus on Jul 20, 2024 21:26:32 GMT -5
I had some larger rough rocks sitting in blue Dawn dish soap (with water) for a number of days (probably too long) to remove some unknown oil that the prior owner had apparently soaked them in.
I washed them off today, only to find that the rocks are now at least partially coated in some sort of bluish-white substance. I assume it is soap scum. I scrubbed, rinsed, re-washed, re-scrubbed, and re-rinsed. Still there.
I know people often soak their rocks in Dawn to remove cutting oil from slabs and such, so I was wondering if anyone had experienced this before. If so, how did you remove the unwanted coating? Thinking of trying vinegar, but I am not sure if it would cause some adverse effect on the rock.
The rocks are some pieces of Ocean Jasper.
Thanks!
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Post by Rockoonz on Jul 20, 2024 21:32:59 GMT -5
Try just dropping them in a bucket of water for a day or 3
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hypodactylus
spending too much on rocks
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Member since July 2021
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Post by hypodactylus on Jul 20, 2024 22:56:40 GMT -5
Try just dropping them in a bucket of water for a day or 3 I'll let them soak in water for a number of days and see if that works. Thanks!
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pebblesky
fully equipped rock polisher
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Post by pebblesky on Jul 21, 2024 1:08:39 GMT -5
Do you have a picture? I noticed some previously acid treated rocks can develop a white coat and that coat could only be grinded/tumbled out, or if you apply oil to the surface again, the white coat will be "hidden".
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hypodactylus
spending too much on rocks
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Post by hypodactylus on Aug 3, 2024 16:02:58 GMT -5
Try just dropping them in a bucket of water for a day or 3 I let them soak in water for a couple weeks or so; no noticeable difference, unfortunately.
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hypodactylus
spending too much on rocks
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Post by hypodactylus on Aug 3, 2024 16:05:48 GMT -5
Do you have a picture? I noticed some previously acid treated rocks can develop a white coat and that coat could only be grinded/tumbled out, or if you apply oil to the surface again, the white coat will be "hidden". This is one of the rocks, dry: ![](http://i.imgur.com/kXBbMXqh.jpg) This is the same rock, wet (water): ![](http://i.imgur.com/ei7FvHOh.jpg) I have never seen something like this and I am not sure if it was already a problem when I received them (hidden by the oil coating) or if it somehow happened when I left them soaking in dish soap and water for an extended period of time to remove the oil.
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pebblesky
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Post by pebblesky on Aug 3, 2024 19:50:45 GMT -5
From my experience it is already a problem. The sellers soaked the chalcedonies in the oil for days even weeks, and due to the porous structure the oil is really hard to completely get rid of. These are some of the examples on my side (sorry for the background color that does't work): ![](https://live.staticflickr.com/65535/53900406538_5e22f4cfe0_o.jpg) Shown dry. Took me a long while to soak them in the water to get rid of the oil that kept spreading out after several days. I didn't use any soap. ![](https://live.staticflickr.com/65535/53900154696_ecf1ed8282_o.jpg) Shown wet after soaking in the water for one minute. I can no longer show you how they looked when soaked with oil for I don't know how long. More translucent and more charming yellow. Even the now seemingly super white part are partially translucent.
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hypodactylus
spending too much on rocks
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Post by hypodactylus on Aug 3, 2024 22:57:07 GMT -5
Interesting, thanks for sharing!
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