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Everything that you need to run a rock tumbler successfully :-)


Tumbling Instructions and Ideas

Tumbling instructions 

Tumbling Instructions


Using a rock tumbler to convert rough rock into sparkling gemstones is part art and part science. In these instructions we share the methods that we use to produce tumbled stones.
Stone identification 

Polished Stone Identification


A picture identification guide for some of the most commonly tumbled rock and mineral materials.
Tumbled stone uses 

Ideas for Using Tumbled Stones


Here is a big list of fun, interesting and beautiful uses for tumbled stones. We think that the best uses are those that share the beauty of the stones with other people.
types of rock for tumbling  

Best Types of Rocks for a Rock Tumbler


Most of the rocks tumbled in rock tumblers are agates, jaspers and varieties of quartz.
vase filler 

Ideas for Using Tumbled Stones as Vase Filler


Here are ten projects that we recently completed, using tumbled stones as vase fillers. Maybe there is an idea here for you?
semiprecious stones 

What are Semiprecious Stones?


Most of the products of rock tumbling would be considered to be "semiprecious stones" but the use of that word is declining.
energy from stones 

Energy from Minerals, Crystals and Stones?


I never believed that a stone could transmit energy to the person who wears it until a five-minute conversation with a gemstone dealer completely changed my mind!
How long does tumbling take 

How Long Does Rock Tumbling Take?


Using a rock tumbler to convert rough rock into polished stones can take as little as one week or more than a month. The amount of time depends on the type of tumbler and how picky you are.
Tumbling media 

Tumbling Media Tips


Rock tumbling media can significantly improve the results of your tumbling and reduce the amount of time needed to convert rough rock into brightly polished stones.
Tumbling glass 

Tumbling Glass in a Rock Tumbler


If you have experience tumbling rocks, there are a few things that you should know before tumbling glass.
sea glass photo by Susanne Friedrich, iStockphoto 

Sea Glass vs. Tumbled Glass?


"Sea glass" and "tumbled glass" are two different things. One is naturally tumbled and the other is intentionally made.
Lortone and Thumler's tumblers review 

Review: Lortone and Thumler's Tumblers


This is a feature-by-feature review of the Lortone 3A rock tumbler and the Thumler’s A-R1 rock tumbler. The information is also relevant to the two-barrel (33B & A-R2) tumblers.
How loud is a tumbler 

How Loud Are Tumblers?


Most hobbyist tumblers are designed to operate quietly. The people who design them know that many tumblers are operated in homes where constant noise is undesirable.
costs of tumbled stones 

How Much Does Rock Tumbling Cost?


Let's take a look at the costs of rock tumbling. If you want to learn about tumbling then buy a tumbler, but if your goal is to acquire polished stones it might be cheaper to just buy the stones!
Tumbling questions 

Frequently Asked Questions


Here are some of our best answers to questions frequently sent to us by friends, customers and others who want to learn about rock tumbling.
sizes of rocks to tumble 

What Size Rocks Can Be Tumbled?


For best results you should load your rock tumbler with rocks of various sizes. If you do that you might be able to sneak in a "Monster" tumble.
Lot-O-Tumbler tips 

Lot-O-Tumbler Tips


There are many different "recipes" for processing rock in the Lot-o-Tumbler. This article shares the method that we use with the single-barrel Lot-o-Tumbler.
Tumbling for kids and adults 

Rock Tumbling for Kids and Adults


Kids and adults both enjoy rock tumbling. In this article we share recommendations for adults who are helping kids get a start in the hobby or who are trying it themselves for the first time.

Free Printables

Printable stone identification chart 

Printable Stone Identification PDF


A printable picture identification guide for some of the most commonly tumbled rock and mineral materials.
Printable tumbling instructions 

Printable Tumbling Instructions PDF


A printable PDF file with the steps that we follow for tumbling a batch of rocks with a small rotary tumbler.
Printable tumbling log 

Printable Tumbling Log


We recommend keeping a log of your tumbling. It will help you keep track of where your stones are in the tumbling process. Also, you can repeat your process exactly if your rocks turn out perfect!

How-To Videos and Tips

Rotary and vibratory tumblers explained 

Rotary and Vibratory Tumblers Explained


A lot of people ask us: "Should I buy a rotary tumbler or should I buy a vibratory tumbler?" This video will explain some of the differences between rotary and vibratory machines.
tumbling glass in a rock tumbler 

How to Tumble Glass in a Rock Tumbler


In this video we demonstrate how to make tumbled glass using a rotary rock tumbler. Our product will be very similar to the "beach glass" or "sea glass" that can be found along coastlines.
How to load the Lot-O-Tumbler barrel 

How to Load the Lot-O-Tumbler Barrel


Getting the right amount of water and grit in the Lot-o-Tumbler can be a challenge. This video shows you how we do it and have been pleased with the results.
Selecting a rotary tumbler 

Which Rotary Tumbler Is Right for You?


This video reviews some of the different tumbler models available and explains why people prefer one model over another.
Load the barrel 2/3-3/4 full 

How Much Rock Should I Place in the Barrel?


In this video we replace the lid of a Thumler’s MP-1 rotary tumbler with a piece of glass to show what happens in the barrel with various amounts of rock.
burnishing in a rock tumbler 

Burnishing Tumbled Stones in a Rock Tumbler


Running your tumbled stones for a few hours in a heavy soap bath might really improve their luster!
Using tumbling media 

Using Tumbling Media


Ceramic and plastic tumbling media are used as a filler or as a cushioning agent in rock tumbling. This video shows how they work in the barrel of a small rotary tumbler.
How loud is a tumbler 

How Loud is a Tumbler?


Here is what a rock tumbler sounds like. A small tumbler is about as loud as giving a 1/2-full carton of orange juice a gentle shaking.
Modern Rock Tumbling book  

Book - Modern Rock Tumbling


We have read every book about tumbling that we could find. We have found that there are only a few that explain tumbling with great clarity and knowledge. Of those, we believe this is the best.