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If you're serious about rock tumbling, starting with the right grit makes all the difference in achieving beautiful, polished stones.

This 2-pound bag of 46/70 extra coarse silicon carbide grit from Fundamental Rockhound Products is perfect for that important first step, especially when working with really rough rocks.
Silicon carbide is the preferred media for both rotary and vibratory rock tumblers because it works efficiently and delivers consistent results.
While the standard step one is usually 60/90, this extra coarse 46/70 size excels at shaping and smoothing stones that have jagged edges or heavy texture.
The grit is AAA quality graded and made in America, giving you confidence in its performance and purity.
Each bag contains two full pounds of carefully processed material that will help you transform rough finds into smooth, ready-to-polish rocks.
Hobbyists love how this extra coarse option saves time on the initial tumbling stage and prepares stones better for the finer grits that follow.

Whether you're a beginner or experienced tumbler, having high-quality grit ensures better results and fewer frustrations.
The product works wonderfully for a variety of stone types and helps create that desirable rounded shape efficiently.

Many rockhounds keep several bags on hand so they can run multiple batches or refresh their tumbler as needed.
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4.9 out of 5