Wonderstone (Rhyolite) preformed lapidary slab, natural raw slab, 2 1/4" x 2 1/4" x 5 mm, banded Rhyolite rough slab, (rs3231)

Lapidary slabs preformed, pits and fractures removed, reshaped and sanded to make it easier to finish.

Preformed lapidary slabs and rough chunks 25% discount, no coupon needed.

Repeat Customers: get 2 free gifts with any purchase.


Wonderstone Rhyolite rough thick slab

Origin: Vernon Hills, Utah

Characteristics: A striking feature of Vernon Hills wonderstone is its intricately folded bands that create colorful designs in cream, yellow-brown, and multiple shades of maroon. A striking feature of Vernon Hills wonderstone is its intricately folded bands that create colorful designs in cream, yellow-brown, and multiple shades of maroon. Cut this slab for cabs or finish and keep for a beautiful specimen. Black plastic stand included.

Approx size: 2 1/4" x 2 1/4" x 5 mm, 40.6 grams, hardness 5 to 5 1/2 mos

Geologic information:

The Vernon Hills wonderstone is a welded-vitric tuff (vitric means glassy) of rhyolitic composition. It is a volcanic rock composed predominantly of volcanic glass particles which have been welded or stuck together by heat and compacted by the weight of overlying material. Alteration of the rock by circulating ground water produced the colorful banding. The maroon and yellow-brown colors are due to the presence of iron oxides.

Use the pictures with the 10 x 10 mm background squares and the 18 mm dime to help with size visualization. All pictures are taken wet except the last 2 which are taken dry. Wet shows the colors you should get when it's finished and dry will show most of the imperfections if there are any. I will note anything in the descriptions that I couldn't remove.

I eliminate most of the pits and open fractures and I smooth the front, back and sides. This gives you a slab that is easy to finish, as a cab or specimen.. I preform the slabs by sanding and shaping them with 120 to 180 diamond grit so the're ready for you to finish with a finer grit and polish. All sides are flat.

My preforming really cuts down the time it will take you to finish a slab, no pits or fractures for you to cut out.

If you want to finish the slab(s) my recommendation is to start with 600 diamond grit, if 600 doesn't remove all grit lines on the slab, work your way back in grits and use (320, or 240) and then 600 to remove all grit lines, finish with 1000 grit before polishing. For extra help I have created posts in my blog that will help you select material, create cabochons and finish my preformed slabs, see my website blog on Designsbyshirl.com.

You can combine any listing with this listing. If the combined package requires more postage I will contact you for the amount I will need. Etsy doesn't know how to calculate postage on combined listings so you may have a refund coming. Any shipping overage will be returned manually before I ship your package. You will save on shipping if you combine listings.

100% money back return for any reason, buyer pays for return postage unless it's our fault. Please be sure you want it before you make a purchase we will be happy to answer any questions you have. See our return policy for more info. You must contact us before returning any item.

Pictures are taken wet and dry, all are wet except the last 2, wet ones bring out the colors you should see in a finished product, dry ones should show any imperfections, small fractures or pits, ect.. Any imperfections that I think should be noted will be described in the items description above.

My pictures are taken with a daylight balanced pure white light bulb.

Etsy will collect a sales tax if your state has a tax law requiring it, it will be added on at checkout and Etsy will send it to your state.

Your package is insured if it is lost. We are not responsible if tracking shows it was delivered to your address.

If you need more info on any slab send us a note. Contact us if you have any special requests to re-shape our slabs or cut special slabs to your specifications. No returns on any slabs we modify.

Our shop is available on Etsy and available as a Etsy Pattern website on the internet, Designsbyshirl.com. We are located in Windsor, California, selling lapidary preformed sanded and reshaped slabs and specimen chunks, we also have cleaned ancient Greek and Roman coins that are ready for jewelry.

Thank you for viewing our shop, you won't be sorry if you make a purchase.
Bruce and Shirl