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The NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit offers 453 grams of nine unique gemstones and a four-stage grit system to transform rough stones into polished gems. Complete with jewelry settings and an educational guide, this kit blends creative design with STEM learning, perfect for hobbyists and aspiring jewelers aged 8 and up.






























| ASIN | B017L46G9G |
| Age Range Description | 8 years and up |
| Art Craft Kit Type | Jewelry Making |
| Best Sellers Rank | 160,445 in Toys & Games ( See Top 100 in Toys & Games ) 1,633 in Educational Science Kits |
| Brand Name | Blue Marble |
| Colour | Multicolored |
| Customer Reviews | 4.5 4.5 out of 5 stars (4,643) |
| Global Trade Identification Number | 00851456006142 |
| Included Components | 453g Mix of Rough Gemstone Rocks |
| Item Dimensions | 7.6 x 7.6 x 20.3 centimetres |
| Item Type Name | Rough Gemstone Refill Kit for Rock Tumbler |
| Item Weight | 635 g |
| Manufacturer | JMW Sales, Inc. |
| Manufacturer Part Number | NGGEMREFILL |
| Material Type | Gemstones |
| Model Name | NGGEMREFILL |
| Model Number | NGGEMREFILL |
| Product Style | Gemstone Mix |
| Product Warranty | Satisfaction Guaranteed |
| Seasons | All Seasons |
| Set Name | Gemstone Mix |
| Size | Mittel |
| Subject Character | Gemstone Jewelry |
| Theme | Geology |
| UPC | 793631124343 783627686269 851456006142 |
| Unit Count | 1 Assorted Gemstones |
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