---
product_id: 540186636
title: "Fundamental Rockhound Products: 1 lb 46/70 Extra Coarse GRIT for Rock Tumbling polishing Silicon Carbide"
brand: "the fundamental rockhound"
price: "€ 100.07"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/540186636-fundamental-rockhound-products-1-lb-46-70-extra-coarse-grit
store_origin: NL
region: Netherlands
---

# 1 lb weight 46/70 grit size American made Fundamental Rockhound Products: 1 lb 46/70 Extra Coarse GRIT for Rock Tumbling polishing Silicon Carbide

**Brand:** the fundamental rockhound
**Price:** € 100.07
**Availability:** ✅ In Stock

## Summary

> ✨ Turn Rocks into Treasures with Extra Coarse Grit! ✨

## Quick Answers

- **What is this?** Fundamental Rockhound Products: 1 lb 46/70 Extra Coarse GRIT for Rock Tumbling polishing Silicon Carbide by the fundamental rockhound
- **How much does it cost?** € 100.07 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/540186636-fundamental-rockhound-products-1-lb-46-70-extra-coarse-grit)

## Best For

- the fundamental rockhound enthusiasts

## Why This Product

- Trusted the fundamental rockhound brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unleash Your Inner Geologist:** Transform rough stones into polished gems with ease!
- • **Versatile for All Rock Types:** Ideal for a variety of stones, from agate to quartz.
- • **American Quality You Can Trust:** Crafted in the USA for superior durability and effectiveness.
- • **Elevate Your Rock Tumbling Game:** Achieve professional-level results right at home!
- • **Precision Grit for Perfect Results:** Extra coarse 46/70 grit ensures optimal tumbling performance.

## Overview

This 1 lb package of 46/70 Extra Coarse Silicon Carbide Grit is designed for rock tumbling, perfect for preparing rough stones before the polishing stage. Made in the USA, it offers high-quality performance for hobbyists and professionals alike.

## Description

This is a one pound bag of extra coarse silicon carbide grit size 46/70 tumbling media. It is appropriate for both rotary and vibratory tumblers. Our grit is American Made graded product. Most tumbles start with size coarse 60/90 but if your rocks are rougher than usual, start with this extra coarse.

## Features

- One pound Extra Coarse size 46/70 silicon carbide grit.
- For rougher than usual stones, use before step one 60/90 coarse stage
- American Made media for rock tumblers

## Images

![Fundamental Rockhound Products: 1 lb 46/70 Extra Coarse GRIT for Rock Tumbling polishing Silicon Carbide - Image 1](https://m.media-amazon.com/images/I/912iOicobZL.jpg)

## Questions & Answers

**Q: Is this bag split half and half between 46 and 70 grit?**
A: Good question. I understand that the smaller the number, the coarser the grit. I'm not sure about the double numbers, but I found one site which sells 46/70, 60/90, etc., and also "non-blends" 1000, 1200, 1500. So apparently the double numbered grits are blends either of two different size grains, or perhaps a range in size. If that is the case, then 46/70 would simply mean that the particles are no larger than 46, and no smaller than 70.

**Q: Can this product be used  on glass?**
A: I used this on wine bottle glass.  It was suggested to use the coarse grit to speed up the process.  It definitely changed the shiny bottle glass to look like sea glass.  It takes about 4 to 5 days in my tumbler to get the smooth cloudy sea glass look.

---

## 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.nl/products/540186636-fundamental-rockhound-products-1-lb-46-70-extra-coarse-grit](https://www.desertcart.nl/products/540186636-fundamental-rockhound-products-1-lb-46-70-extra-coarse-grit)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-25*