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Telescopes
Best of Telescopes
Best Telescopes for Kids Best Telescopes for Beginners Best Telescopes for Astrophotography Best Telescopes for Viewing Planets Best Telescopes for Eclipses Best Telescopes Under $500 All Telescopes Telescopes on Sale
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Celestron NexStar Celestron StarSense Explorer Refractors Reflectors Dobsonians Scmitd Cassegrain - SCT GoTo and Computerized Table Top Spotting Scopes Guide Scopes Solar Telescopes Optical Tube Assembly - OTA Astrographs All Telescopes
By Brand
Askar Celestron Explore Scientific Meade Orion SharpStar Sky-Watcher Tele Vue Unistellar William Optics All Telescopes
Start Here
Buying Your First Telescope So You've Got a Telescope: Now What?
Astrophotography
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Deep Sky Planetary and Lunar Guiding Cameras Solar All Cameras
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LRGB Filters SHO Filters 3nm Filters Light Pollution Dual Band UV/IR Cut All Filters
Accessories
Auto Focusers and EAF Filter Wheels Filter Drawers Focusing Masks Off Axis Guiders - OAG Smartphone Adapters
By Brand
ZWO Optolong Antlia QHY Orion Baader Planetarium Sharpstar Astrophotography William Optics Astrographs All Astro PrimaLuceLab
Start Here
Astrophotography for Beginners How to Use a Star Adventurer Tracker How to Shoot the Moon
Solar Photography
Daystar Instruments - Quark Meade PST, Coronado Lunt
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Alt Azimuth Equatorial GoTo and Computerized Harmonic Manual Star Trackers All Mounts and Tripods
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Home / Rock Tumblers

Rock Tumblers

Rock Tumblers Let You Polish Rocks

Using a rock tumbler to turn rough stones into something polished and shiny is a long and satisfying process. Great results take time, but with the right equipment and polishing compounds you'll get great finished products. We cary some fantastic rotary rock tumblers and supplies to help you. 

All of the Rock Tumblers that we carry have rubber drums. This means their quiet. Lots of toy rock tumblers have plastic drums that sound like your mixing cement. A rubber drum keeps things down to a nice white noise. Trust us, this helps with patience (remember how we said it's a long process?). 

We also carry high quality silicone carbide grit and aluminum oxide polishing compounds. Our packages include additional course grit so that you can run through that cycle twice. 

How to Tumble Rocks

There are some great instructional videos out there. We particularly like the Michigan Rocks YouTube channel. That said, it's not a complicated process:

Fill your drum 2/3 to 3/4 full with rough stones, fill the drum with water to the top of the rocks, and add polishing compound. Tumble the rocks for about a week, or until you can't feel any grit left in the water.

Thoroughly rinse the rocks and repeat. We like to tumble with corse grit for ~2 weeks, medium grit for ~1 week, fine grit for ~1 week, and polishing compound for ~1 week. This will vary depending on what you're polishing. 

Don't pour the slurry down the drain, you'll need to pour it outside, or leave it until the water evaporates off and then throw out the residue. It's not toxic, but any residual abrasive can damage your plumbing. 

Some rocks are softer (e.g. fluorite) and needs a different treatment. If you have any questions, let us know. We're always happy to share our recipes.  

 

In Stock
Tumble Bee
Tumble Bee Rock Tumblers (TUMBLE-BEE-TB)
No reviews
from $124.95

Tumble Bee Tumblers Tumble-Bee 1x2 The Tumble-Bee 1×2 is a rotary rock tumbler that comes complete with one 2lb capacity barrel. This model is a great choice for small scale tumbling needs and is the...

Special Order
Lortone
Lortone 33B Rock Tumbler (004-091)
No reviews
$249.95

The ever-popular 33B tumbler offers greater capacity and an upgraded drive. Now you can polish more stones at the same time in a compact unit. Comes with twin 3 lb. rubber barrels. Dimensions Base dimensions:...

In Stock
Lortone
Lortone 3A Rock Tumbler (001-092)
No reviews
$179.95

Perfect rock tumbler for those just getting started. Our all rubber barrels are quiet and long wearing. The single 3 lb. capacity barrel is sized for smaller stones up to 1-1/4 inches. We've molded the...

In Stock
Tumble Bee
Tumble Bee Spare Parts
1 review
from $1.95

2lb Barrel This 2lb capacity rubber barrel comes standard with the Tumble-Bee 1 x 2lb rock tumbler and the Tumble-Bee 2 x 2lb rock tumbler. Made of quality rubber, this barrel comes complete with all...

In Stock
National Geographic
National Geographic Rock Tumbler Refill Kits (816448026942/851456006173)
No reviews
from $29.95

Refill Kits to go with your National Geographic Rock Tumbler! Madagascar Refill Kit Details Real gemstones from Madagascar. 1 lb of raw rocks includes rose quartz, labradorite, red jasper, yellow jasper, indigo gabbro, and Polychrome...

Special Order 33% OFF
National Geographic
National Geographic Hobby Rock Tumbler (816448026171)
No reviews
$99.99 $149.99

These are a nice beginner rock tumbler. They come with everything you need to get a great start in the hobby.

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Bloodstone
No reviews
$14.95

Discover the distinct characteristics of Bloodstone tumbling rough. These 1.5" to 2.65" blocky pieces predominantly exhibit a deep green color, with some showcasing occasional red specks. Note that not all pieces contain red inclusions. A...

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Unakite
No reviews
$19.95

Colors of olive green, salmon, and cream. - Around 1" to 2" in size. Great for tumbling, takes a good polish. From Africa. Rated a 7 on the Mohs hardness scale. Sold by the pound.

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Sodalite
No reviews
$14.95

Deep blue in color with some white, easy to work with, takes a good polish. Around 1.5" to 2.5" in size approximately 4 to 5 pieces per pound. Great for tumbling, takes a good polish....

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Mexican Crazy Lace
No reviews
$19.95

A long-time favorite of hobbyists for tumbling, this material has the multi-colors of Red, Yellow, Orange, and White with banding. Hand broken for tumbling this material takes an excellent polish. 1" to 2.25" in size,...

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Blue Tiger Eye
No reviews
$19.95

Blue tiger eye tumbling roughly sized 1.75" to 2.65" per piece. Approximately 4 to 5 pieces per pound. Rated a 7 on the Mohs hardness scale. Sold by the pound.

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Mookaite
No reviews
$19.95

Mookaite tumbling roughly sized 1.5" to 2.65" per piece. Approximately 4 to 5 pieces per pound. Rated a 7 on the Mohs hardness scale. Sold by the pound.

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Ruby Zoisite
No reviews
$24.95

Ruby Zoisite tumbling roughly sized 1.75" to 2.65" per piece. Approximately 4 to 5 pieces per pound. Rated a 6.5 on the Mohs hardness scale. Sold by the pound.

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Red Jasper
No reviews
$14.95

Approximately sized 2" x 1" x 0.5", although sometime you will find thinner pieces. There are approximately 18 piece per pound. From Brazil. Rated a 7 on the Mohs hardness scale. Sold by the pound.

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Smokey Quartz
No reviews
$14.95

A mixture of smokey quartz. Approx 15-20 pieces per pound, small pieces 1/2" to 3/4" size. Rated a 7 on the Mohs hardness scale. Sold by the pound.

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Red Tiger Eye
No reviews
$19.95

Tumbling Rough Red with dark and light banding. Around 1" to 2" in size. Great for tumbling, takes a good polish. Rated a 7 on the Mohs hardness scale. Sold by the pound.

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Brazilian Mix
No reviews
$19.95

Includes amethyst, citrine, crystal, rose quartz, blue quartz, green quartz, white quartz, fuchsite, blue onyx, green onyx, red jasper, blue calcite, orange calcite, orchid calcite, white aragonite & green aragonite. Rated a 7 on the...

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Mexican Mix
No reviews
$14.95

A good assortment of general tumbling material. 10 to 12 pieces per pound. Great for beginners or for fill. Rated a 7 on the Mohs hardness scale. Sold by the pound.

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Rose Quartz
No reviews
$19.95

This material is medium pink in color, has the natural inclusions. Takes an excellent polish, and is great for all jewelry making. Tumbling rough is 1" to 2" in size. Rated a 7 on the...

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Amethyst
No reviews
$19.95

Amethyst from Brazil. Good for beads or tumbling. Approx 15-20 pieces per pound, small pieces 1/2" to 3/4" size. Rated a 7 on the Mohs hardness scale. Sold by the pound.

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Fluorite
No reviews
$24.95

Beautiful fluorite tumbling rough. Green and Purple are the primary colors. Some pieces are mixed between green and purple, others are solid green or solid purple. Average size is .75" x 1.5", approximately 29 pieces...

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Leopard Skin
No reviews
$14.95

A orbicular jasper from Mexico, this material has a variety of colors, which include black, brown, white sometimes yellow, orange, olive green. Takes a good polish. Rated a 7 on the Mohs hardness scale. Sold...

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Snowflake Obsidian
No reviews
$19.95

Tumbling Rough Black obsidian with white snowflakes. Around 1" to 2" in size. Great for tumbling, takes a good polish. Rated a 5 on the Mohs hardness scale. Sold by the pound.

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Tiger Eye
No reviews
$19.95

Tumbling Rough Golden/yellow brown cabbing material, nice golden brown colors, great for jewelry making. Around 1" to 2" in size. Great for tumbling, takes a good polish. From Africa Rated a 7 on the Mohs...

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Moonstone
No reviews
$14.95

From India, a variety of feldspar with sheen know as adularescene. Clarity ranges from transparent to translucent. Good for cabbing or tumbling. Mostly colorless material, great for jewelry making. Approximately 30 to 50 pieces per...

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Brazilian Amethyst
No reviews
$14.95

Tumbling Rough Medium dark in color, takes a good polish, great tumbling material. Rated a 7 on the Mohs hardness scale. Sold by the pound.

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Apache Tears
No reviews
$14.95

A glass like volcanic lave, black in color, translucent when polished. Small nodules up to the size of walnuts. Heat sensitive and very brittle. Approximately 30 to 50 pieces per pound. Rated a 5 on...

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Sea Jasper
No reviews
$14.95

Small tumbling Sea Jasper rough sized 0.50" to 0.75" per piece, Approximately 30-40 pieces per pound. Rated a 7 on the Mohs hardness scale. Sold by the pound.

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Carnelian Agate
No reviews
$14.95

Tumbling Rough From India. A red-orange color, a variety of chalcedony, larger pieces around 1" in size. Approximately 18 to 25 pieces per pound. Rated a 7 on the Mohs hardness scale. Sold by the...

In Stock
All-Star Telescope Canada
Bulk Rock Tumbling Rough - Botswana Agate
No reviews
$19.95

Small cabbing or tumbling material from Botswana. 1" to 2" in size. This material is a great cabbing material, many pieces will cut a full cabochon. Grey Base with white bands through-out. Broken pieces. Rated...

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