--- product_id: 767855119 title: "12,000 Grit Aluminum Oxide Rock Polish Powder, 10lb Extreme Fine Final Stage Rock Tumbler Polish, Stone Polishing Compound for Rotary & Vibratory Tumblers, Lapidary Finish" brand: "mjr tumblers" price: "$308.30" currency: USD in_stock: true reviews_count: 13 category: "Mjr Tumblers" url: https://www.desertcart.us/products/767855119-12-000-grit-aluminum-oxide-rock-polish-powder-10lb-extreme store_origin: US region: United States of America --- # Works with rotary & vibratory tumblers 12,000 grit ultra-fine polish Premium aluminum oxide for consistent finish 12,000 Grit Aluminum Oxide Rock Polish Powder, 10lb Extreme Fine Final Stage Rock Tumbler Polish, Stone Polishing Compound for Rotary & Vibratory Tumblers, Lapidary Finish **Brand:** mjr tumblers **Price:** $308.30 **Availability:** ✅ In Stock ## Summary > ✨ Elevate your stones to museum-quality shine! ✨ ## Quick Answers - **What is this?** 12,000 Grit Aluminum Oxide Rock Polish Powder, 10lb Extreme Fine Final Stage Rock Tumbler Polish, Stone Polishing Compound for Rotary & Vibratory Tumblers, Lapidary Finish by mjr tumblers - **How much does it cost?** $308.30 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/767855119-12-000-grit-aluminum-oxide-rock-polish-powder-10lb-extreme) ## Best For - mjr tumblers enthusiasts ## Why This Product - Trusted mjr tumblers brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Reliable Consistency:** Premium aluminum oxide ensures even, repeatable results every tumbling cycle. - • **Final Stage Perfection:** Achieve a flawless, mirror-like polish with ultra-fine 12,000 grit precision. - • **Multi-Material Mastery:** Perfect for polishing rocks, minerals, and glass to a brilliant shine. - • **Universal Compatibility:** Seamlessly integrates with both rotary and vibratory tumblers for versatile use. - • **Trusted American Quality:** Support a veteran-owned brand delivering dependable, high-performance polish. ## Overview MJR Tumblers 12,000 Grit Aluminum Oxide Polish Powder is an ultra-fine, premium-grade polishing compound designed for the final stage of rock tumbling. Compatible with rotary and vibratory tumblers, it delivers consistent, high-gloss finishes on stones, minerals, and glass. This 10lb pack from a trusted USA veteran-owned brand ensures professional-grade results for hobbyists and lapidary experts alike. ## Description Product description Review: Tons of abrasive, leaves a great finish - Some mild yellow discoloration, but quality seems to still be there. Tons of abrasive for the price, and it works great as a suspension. No clumping or galling from it not dispersing in use. Particle size does appear to be correct for the 14000 grit I purchased. Review: This will get you to shiny! - I got a Lortone dual tumbler for Christmas and a kit of grit to go with it. I wasn’t getting the shine I wanted with the level 4 grit that came with the kit so I looked at reviews for a final stage grit and this one came up. I am not disappointed! This did the trick! I don’t want super shiny, just a shine but this grit can do both, all about the timing. Excellent product, totally recommend! ## Features - ULTRA-FINE 12,000 GRIT FOR FINAL POLISHING STAGE: This sub-micron 12,000 grit aluminum oxide is designed for the final stage of rock tumbling, helping refine stone surfaces after pre-polish. Ideal for achieving a smooth, clean, and polished finish on rocks, minerals, and gemstones. - HIGH QUALITY ALUMINUM OXIDE FOR CONSISTENT RESULTS: Made from premium aluminum oxide, this polishing compound delivers even, reliable performance across tumbling cycles. Designed to support consistent finishing results when used as part of a complete multi-stage polishing process - COMPATIBLE WITH ROTARY & VIBRATORY TUMBLERS: Suitable for use with most rock tumblers, including rotary and vibratory machines. A versatile polishing solution for maintaining your rock tumbling workflow or upgrading your final polishing stage. - IDEAL FOR ROCKS, MINERALS & GLASS POLISHING: Works well across a variety of materials, including stones, minerals, and glass. Designed to enhance surface smoothness and clarity during the final polishing step. - USA OWNED BRAND WITH TRUSTED QUALITY: Offered by a USA-based, disabled and veteran-owned company. MJR Tumblers provides dependable rock tumbling supplies designed for performance, consistency, and ease of use. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0D4PHXR6Q | | Best Sellers Rank | #20,221 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #28 in Tumbling Media | | Brand | MJR Tumblers | | Brand Name | MJR Tumblers | | Compatible Material | Aluminum Oxide | | Customer Reviews | 4.6 out of 5 stars 135 Reviews | | Grit Material | Extreme Aluminum Oxide | | Grit Material Type | Extreme Aluminum Oxide | | Grit Number | 12000 | | Grit Type | Extreme Polish | | Item Weight | 10 Pounds | | Manufacturer | MJR Tumblers | | Material | Extreme Aluminum Oxide | | Material Type | Extreme Aluminum Oxide | | Part Number | MJR-12000-10LB | | Unit Count | 1.0 Count | ## Product Details - **Brand:** MJR Tumblers - **Grit Material:** Extreme Aluminum Oxide - **Grit Type:** Extreme Polish - **Item Weight:** 10 Pounds - **Material:** Extreme Aluminum Oxide ## Images ![12,000 Grit Aluminum Oxide Rock Polish Powder, 10lb Extreme Fine Final Stage Rock Tumbler Polish, Stone Polishing Compound for Rotary & Vibratory Tumblers, Lapidary Finish - Image 1](https://m.media-amazon.com/images/I/61nvojo7R0L.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Tons of abrasive, leaves a great finish *by N***O on April 19, 2026* Some mild yellow discoloration, but quality seems to still be there. Tons of abrasive for the price, and it works great as a suspension. No clumping or galling from it not dispersing in use. Particle size does appear to be correct for the 14000 grit I purchased. ### ⭐⭐⭐⭐⭐ This will get you to shiny! *by E***N on April 19, 2026* I got a Lortone dual tumbler for Christmas and a kit of grit to go with it. I wasn’t getting the shine I wanted with the level 4 grit that came with the kit so I looked at reviews for a final stage grit and this one came up. I am not disappointed! This did the trick! I don’t want super shiny, just a shine but this grit can do both, all about the timing. Excellent product, totally recommend! ### ⭐⭐⭐⭐⭐ Great finishing polish *by R***B on May 11, 2026* I will be buying it again --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/767855119-12-000-grit-aluminum-oxide-rock-polish-powder-10lb-extreme](https://www.desertcart.us/products/767855119-12-000-grit-aluminum-oxide-rock-polish-powder-10lb-extreme) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-23*