Thursday, December 1, 2016

Remounting Eye-Catching Specimens


       When I’m buying at rock shows or collecting, I’m frequently confronted with gorgeous specimens that are not suitable for cabbing, but are too beautiful to put back. I’ve also had a chance to purchase a few small old collections for their cabbing material and find they contain various specimens either already mounted or loose.    


      Sometimes I prefer to mount light-colored stones on a high-contrast material. For example, I had a nice group of quartz crystals. It had two issues. First, the bottom was very jagged and would scratch any surface it was displayed on, so I carefully ground it smooth-ish. I was afraid the whole time I was working on it that the crystals would separate and fall off, but I got lucky. A friend who is a woodworker made a simple base that reflected the basic shape of the specimen.


I decided to try out the concept of remounting with this piece of Brazilian topaz. It’s more of a chip than a specimen, but the color is lovely.  The first thing was to get it out of this old paper box (1.5” square) where it had been stuck on some foam that had once been white. Then clean off the bits of old foam adhering to the stone. I soaked the glue that remained on the specimen in water or about a half-hour, and it was easily scraped off. 

TIP! Before you try this, make sure your specimen isn’t easily water soluble like halite (rock salt).

One of my considerations with the topaz was where it would be displayed. One place I have where I display a lot of specimens is a tri-level display case that is lit from on top and has two glass shelves to let the light get to all the shelves. Because of this, I tend to put small items toward the top because they will block less light. My larger specimens that are mounted on wood go on the bottom of the cabinet. Since an opaque base would block light and a translucent could alter the way the colors were seen on shelves below, I chose to use clear plastic to mount this specimen. If you’re remounting a specimen that will be on a surface where light transmission isn’t a concern, consider different colors, textures, or even other rocks to show off the unique colors and shapes of your specimen. 

                  I mounted the stone on a 1 ¼” round by 1/8” high clear plastic disk that I purchased at Tap Plastics. It had paper protectors on both sides so the disk didn’t get scratched. I wish the color showed up better in my after picture, but I can assure you it now looks spectacular under the lights in my display case! 
          Have you mounted or remounted a specimen? I’d love to hear about what it was and how you chose to handle it. I may be able to use it in a future blog! Send it to
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Your Lapidary Whisperer

Your Lapidary Whisperer
Donna Albrecht

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