Top 10 Gemstones for Rock Tumbler – Science Kits & Toys

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1. NATIONAL GEOGRAPHIC

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Gemstone Mix of 9 varieties including Tiger's Eye, Comes with 4 grades of Grit, Jewelry Fastenings and detailed Learning Guide, NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit, Amethyst and Quartz

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NATIONAL GEOGRAPHIC #ad - Create custom jewelry from your newly polished gemstones! Gemstones of nine varieties: tiger's eye, red jasper, Dalmatian jasper, rose quartz, Sodalite, agate, amethyst, Aventurine, hematite.

Four grades of grit: coarse, fine, medium, polish. Respected quality - national geographic is proud to provide only the highest quality toys and all our kits are backed by our 100% satisfaction guarantee. Learning guide: our learning guide will teach you all about these unique gemstone specimens and includes many amazing and fascinating facts. Jewelry fastenings: 1 necklace, 1 keychain, 1 set of earrings, 1 ring.1lb in total. Transform your stones from rough rocks to dazzling gemstones! .
BrandNATIONAL GEOGRAPHIC #ad
ManufacturerDiscover with Dr. Cool #ad
Height8 Inches
Length3 Inches
Weight1 Pounds
Width3 Inches
Part NumberNGGEMREFILL
ModelNGGEMREFILL
WarrantyNo Warranty

2. NATIONAL GEOGRAPHIC

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NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit, Includes Rough Gemstones, Great Stem Science Kit, Learning Guide, Jewelry Fastenings, 4 Polishing Grits

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NATIONAL GEOGRAPHIC #ad - Control the number of days for each tumbling cycle with the one-touch timer and automatic shutoff feature, set it and forget it! This is a great gift for kids. Makes a great gift for girls and boys! . An excellent STEM activity for kids.

A tumbler that's made to last – our high-quality tumblers are made with a durable motor that’s designed to last for years. Create your own gemstones - make any stone sparkle and polish everyday rocks into dazzling gemstones! This rock tumbler kit makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design.

The leakproof rubber barrel reduces sound, making it 75% quieter than other plastic models. Easy to use – simple instructions and one-touch settings make rock tumbling fun and easy. A complete hobby tumbling kit - everything you need to create polished gemstones: the tumbler, nine types of real rough gemstones, sifter, four polishing grits, plus a detailed full-color learning guide.
BrandNATIONAL GEOGRAPHIC #ad
ManufacturerJMW Sales, Inc #ad
Height8.06 Inches
Length13.81 Inches
Weight5.51 Pounds
Width4.88 Inches
Part NumberNGHOBBYTUMBLER
ModelNGHOBBYTUMBLER
WarrantyNo Warranty

3. NATIONAL GEOGRAPHIC

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4 Grades of Grit, Jewelry Fastenings & Detailed Learning Guide, 3lbs Gemstones of 9 Varieties Including Tiger's Eye, Amethyst & Quartz, NATIONAL GEOGRAPHIC Rock Tumbler Mega Refill Kit

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NATIONAL GEOGRAPHIC #ad - Satisfaction guaranteed – the national geographic stem series provides kids high-quality educational toys that are a whole lot of fun! If your experience is anything less than extraordinary, let us know so we can make it right for you.

Transform your stones from rough rocks to dazzling gemstones! Learning guide: our learning guide will teach you all about these unique gemstone specimens and includes many amazing and fascinating facts. Gemstones of nine varieties: tiger’s eye, Red Jasper, Amethyst, Dalmatian Jasper, Sodalite, rose quartz, Aventurine, Agate, Black Jasper. Jewelry fastenings: 1 necklace, 1 set of Earrings, 1 Keychain, 1 Ring. Four grades of grit: coarse, Medium, Fine, Polish. Create custom jewelry from your newly polished gemstones!3lb in total.
BrandNATIONAL GEOGRAPHIC #ad
ManufacturerJMW Sales, Inc. #ad
Height3 Inches
Length3 Inches
Width8 Inches
Part NumberNGGEMREFILLMEGA
ModelNGGEMREFILLMEGA

4. NATIONAL GEOGRAPHIC

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NATIONAL GEOGRAPHIC Rock Tumbler Refill – 5 Pound Mix of Rocks and Gemstones for Rock Tumblers, Jasper, Gemstone, 5 Jewelry Settings and Polishing Grit, Includes Agate, and More, Petrified Wood

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NATIONAL GEOGRAPHIC #ad - Enormous variety - this rock tumbler refill kit has 5 pounds of unpolished rocks and gemstones consisting of a 1-pound gemstone mix, 1-pound agate mix, 1-pound Madagascar mix, 1-pound jasper mix, and 1-pound petrified wood mix.

Jewelry settings – once your rocks are polished, use the 5 included jewelry settings to create beautiful keepsakes or use the included storage pouch to keep your favorite specimens all in one place. Respected quality - national geographic is proud to provide only the highest quality STEM toys and all our kits are backed by our 100% satisfaction guarantee. Rock polishing grit – there are 20 total rock tumbler grit packets in the kit, enough for five complete tumbling cycles with any rock tumbler. Detailed learning guide – the learning guide includes polishing instructions along with fascinating information about the stones in the kit.
BrandNATIONAL GEOGRAPHIC #ad
ManufacturerJMW Sales, Inc. #ad
Height5.9 Inches
Length6.9 Inches
Width6.1 Inches
Part NumberNGWORLDREFILL
ModelNGWORLDREFILL
WarrantyNational Geographic Toys is proud to provide a 100% satisfaction with all our products so that you can buy with confidence.

5. NATIONAL GEOGRAPHIC

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3LB Rough Gemstones 4 Polishing Grits, NATIONAL GEOGRAPHIC Rock Tumbler Kit-3LB Extra Large Capacity, Jewelry Fastenings, an Educational STEM Science Kit

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NATIONAL GEOGRAPHIC #ad - An improved, leak-proof barrel features a stainless-steel lid is 75% quieter overall than plastic tumbler barrels. Create your own gemstones - rock tumbling is a hugely popular hobby for kids and adults! This professional rock tumbler makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design.

All-in-one tumbling kit - this kit has everything you need and then some! You get three pounds of rough rocks with nine different types of gemstones inside, a strainer, five jewelry fastenings, grit, and our innovative new GemFoam rock polisher. Use gemfoam for dazzling results - this rock tumbler kit stands apart from others thanks to our new, reusable GemFoam rock polisher! Add GemFoam and water to the barrel after your final tumbling stage and your gems will have incredible shine! Satisfaction guaranteed – the national geographic stem series provides kids high-quality educational toys that are a whole lot of fun! If your experience is anything less than extraordinary, let us know so we can make it right for you.

A tumbler that's made to last - the durable motor has time and speed control settings so you can set it, and forget it.
BrandNATIONAL GEOGRAPHIC #ad
ManufacturerJMW Sales, Inc. #ad
Height6.7 Inches
Length12.6 Inches
Width10.25 Inches
Part NumberNGTUMBLER3LB
ModelRock

6. NATIONAL GEOGRAPHIC

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Rock Polisher for Kids and Adults, Rocks, Complete Rock Tumbler Kit, and 5 Jewelry Fastenings, Durable Leak-Proof Tumbler, A Great STEM Hobby, Grit, NATIONAL GEOGRAPHIC Starter Rock Tumbler Kit

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NATIONAL GEOGRAPHIC #ad - Create your own gemstones - rock tumbling is a hugely popular hobby for kids and adults! This starter rock tumbler makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design.

Easy to use and educational - detailed tumbler instructions lead you step-by-step through the rock tumbling process, A full-color learning guide details how rocks are naturally polished and has fascinating facts about the gemstones in the kit. Satisfaction guaranteed – the national geographic stem series provides kids high-quality educational toys that are a whole lot of fun! If your experience is anything less than extraordinary, let us know so we can make it right for you.

An improved, leak-proof barrel is lined with rubber for quieter operation while tumbling on the sturdy tumbler base. A tumbler that's made to last - the durable motor allows you to tumble multiple batches of rocks. All-in-one tumbling kit - this kit has everything you need and then some! You get ½ a pound of rough rocks with nine different types of gemstones inside, five jewelry fastenings, and our four-stage rock polishing grit.
BrandNATIONAL GEOGRAPHIC #ad
ManufacturerDiscover with Dr. Cool #ad
Height9 Inches
Length7.5 Inches
Weight4 Pounds
Width11 Inches
Part NumberNGTUMBLER2
ModelNGTUMBLER2
Warranty30 day warranty against manufacturer defects

7. Dan&Darci

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Advanced Professional Rock Tumbler Kit, with Digital 9-day Polishing timer & 3 speed settings, Turn Rough Rocks into Beautiful Gems : Great Science & STEM Gift for Kids all ages : Geology Toy

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Dan&Darci #ad - Powerful quality: runs on a powerful heavy duty motor that will last for a very long time, and includes a leak-resistant barrel that runs quieter than the other brands. It fosters a love for science, geology and mineralogy in a fun and exciting way.

Assorted rough rocks, gem storage bag, jewelry fasteners, 4 grit packets, low-noise barrel 1 lb. Complete kit: includes: rock tumbler machine, mesh strainer, 1/2 lb. Turn rough rocks into polished gems: discover and learn the fun process of rock tumbling with the Advanced Rock Tumbler. Advanced features: includes speed controls providing more granular tumbling results, a 9-day timer shuts off automatically when you desire, all displayed on beautiful LCD screens.

A fun and educational gift for all ages: it's not often that a science project can be fun and engaging, but this kit achieves both! It fascinates children and adults as soon as they pull it out of the box and is a perfect STEM project for any age. Pour in the rough stones and grit and let the machine do its job. Capacity, and an illustrated easy-to-follow instruction and learning guide booklet.
BrandDan&Darci #ad
ManufacturerDan&Darci #ad
Part NumberDD-007.2

8. Brookstone

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Brookstone Rock Tumbler and gem Stone Creation Kit for Kids with Rocks & Jewelry Making Supplies Included

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Brookstone #ad - Includes a learning guide. Within minutes of receiving their tumbler, a strong motor, kids can begin creating beautiful gemstones. Looking for an educational all ages gift that makes lsemi-precious gemstones. Earning fun? check out our kid- friendly Rock Tumbler! With this rock tumbler, kids can easily turn rough rocks into semi-precious gemstones.

Great for home learning and bedroom decor - with its unique design and one-of-a- kind marbleized case, this high-quality rock tumbler is a great educational gift for kids 8+. This children’s rock tumbler is very user-friendly, with clear precision settings, and a no-mess design that parents love. They’ll be amazed by the process and eager to learn more. Includes everything you need. When not in use, it also functions as a cool and compact piece of decor. Along with the learning guide, and agates, jasper, one pack of polishing powder, three packs of unpolished stones amethyst, each kit includes one rock tumbler, a necklace, two rings, a 120V AC adaptor, and a keychain.

That’s where our learning guide comes in. Our fun and informative learning guide is a fantastic way for children to learn about their rock tumbler, this learning guide is the perfect companion to the rock tumbler, stones, and the basics of geology! Written for kids 8+, igniting a passion for geology in kids across the country. Looking for an educational all ages gift that makes lsemi-precious gemstones. Earning fun? check out our kid- friendly Rock Tumbler! With this rock tumbler, kids can easily turn rough rocks into semi-precious gemstones.
BrandBrookstone #ad
ManufacturerBrookstone #ad
Part Number709308BRS

9. AliKids

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Professional Advanced Rock Tumbler Kit, 4 Polishing Grits, with 3 Speed Settings and Digital 9-Day Timer, include Rough Gemstones

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AliKids #ad - Turn rough rocks into polished gems - Make any stone sparkle and polish everyday rocks into dazzling gemstones! Simple operation and durable design. Exquisite packaging, fashionable appearance.

Easy to use - digital 9-day timer with automatic shutoff feature, 3 speed settings, beautiful LCD screen. Complete rock tumbling kit - everything you need to create polished gemstones: tumbler, half pound of gemstones 9 different types, sifter, low-noise barrel, jewelry fastenings, four polishing grits, detailed full-color learning guide. Noise reducing leak-proof rubber barrel with stainless steel lid. Educational and fun gift for all ages - Rock tumbling is a fun activity for children of all ages and promotes an interest in geology and science. Durable quality - this high-quality tumbler has a powerful motor that will last for years.
BrandAliKids #ad
ManufacturerAliKids #ad
Height5.91 Inches
Length12.99 Inches
Weight2.27 Pounds
Width9.06 Inches
Part NumberAL-Tumbler-1
ModelAL-Tumbler-1

10. NATIONAL GEOGRAPHIC

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And Patented GemFoam Finishing Foam Polish, Rocks, NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit, Complete Rock Tumbler Kit with Durable Tumbler, Educational Stem Science Kit, Grit

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NATIONAL GEOGRAPHIC #ad - All-in-one tumbling kit - you get one pound of rough rocks with nine different types of gemstones inside, a strainer, tumbler grit, five jewelry fastenings, and our innovative new GemFoam polishing foam. An improved, leak-proof barrel features a stainless-steel lid.

Use gemfoam for dazzling results - this rock tumbler kit stands apart from others thanks to our new, reusable GemFoam rock polisher! Add GemFoam and water to the barrel after your final tumbling stage and your gems will have incredible shine! Satisfaction guaranteed - the national geographic stEM series provides kids high-quality educational toys that are a whole lot of fun! If your experience is anything less than extraordinary, let us know so we can make it right for you.

A tumbler that's made to last - the durable motor has time and speed control settings so you can set it, and forget it. Create your own gemstones - rock tumbling is a hugely popular hobby for kids and adults! This robust rock tumbler makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design.
BrandNATIONAL GEOGRAPHIC #ad
ManufacturerJMW Sales, Inc. #ad
Height8.15 Inches
Length13.86 Inches
Weight5.29 Pounds
Width5.04 Inches
Part NumberNGHOBBYTUMBLER2
ModelNGHOBBYTUMBLER2