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Mixed Jasper Tumbler Rough

A great rough for the beginning rock tumbler.

Jasper tumbling rough

Small Sized
3/8" to 1 1/2"
Two Pounds
For $14.95

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Chunky Sized
3/4" to 2 1/2"
Five Pounds
For $24.95

Jasper Mix Tumbling Rough

Here is a tumbling mix that will give you many different types of jasper in a variety of patterns and colors. Every bag of this mix is different. If you order today and again in a couple months you will likely be surprised with completely different materials. Expect a range of colors but the mix will usually be rich in red, brown, cream, gray and tan colored jasper that accepts a nice polish.

Small Sized Jasper Mix

This mix is perfectly sized for the beginner. It has a range of particle sizes from approximately 3/8" to 1 1/2" and should require little to no preparation.

Chunky Sized Jasper Mix

The chunky sized jasper mix is the same material that is described above only it is larger sized pieces. Pieces range in size from 3/4" up to 2 1/2" and it comes in a five-pound package. This chunky rough is sized for people with larger tumblers and more experience.

We recommend TXP polish - an aluminum oxide compound - for polishing all types of jasper.

Polished mixed jasper
This photo is of a batch of Mixed Jasper rough that we polished.

Steps 1A, 1B, 1C: We started with a little less than four pounds of rough and loaded it into the barrel of a Lortone QT6 tumbler with 60/90 grit silicon carbide. This is very angular rough with lots of edges to round off. At the end of one week we inspected the rocks and were really impressed with the color. Most of the rocks were smooth but there were still a few sharp edges and dimples that we wanted to grind off. So we ran it a second week with a fresh charge of 60/90 grit. At the end of week two we were feeling picky so we ran it a third week in fresh grit for good measure. After three weeks we had lots of nicely rounded rocks with almost all of the sharp edges worn off and the dimples worn smooth. We cleaned it up for tumbling in medium grit. That was three weeks total in coarse (60/90) grit.

Step 2: We loaded the jaspers into a single barrel Lot-O-Tumbler and ran for 48 hours in with 150/220 grit, rinsing and adding new grit after the first 24 hours.

Step 3: We then ran the jaspers about 36 hours in the Lot-O-Tumbler with 500F prepolish. The jasper was now showing a slight gloss.

Step 4: The final step was just 24 hours in the Lot-O-Tumbler with TXP aluminum oxide polish. Wow! We were amazed at how brightly they polished in just one day.

Total processing time was three weeks, four days and 12 hours.

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Gemstone Tumbling, Cutting, Drilling and Cabochon Making We highly recommend: Gemstone Tumbling, Cutting, Drilling and Cabochon Making (by Jim Magnuson and Val Carver. This is our favorite book for a person who does rock tumbling and now wants to make beads, pendants and other jewelry from tumbled stones. Includes an introduction to cabochon cutting.

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