All of my rocks are beach tumbled. Can I use just stage 3 and 4 to make them shiny. Do I need anything else?

Yes! I’ve done this and these 2 tumbles resulted in smooth and shiny rocks

How many loads can you get out of the 2lb bag typically?

I use 3 tbs of grit per tumbler. You will have to do the math and figure out how many tablespoons per pound then multiply by 2.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

60/90 Grit Silicon Carbide Rock Tumbler Grit, Extra Coarse Stage 1 Rock Polishing Grit, 2 lb Stone Polishing Compound for Rotary & Vibratory Tumblers, Lapidary Supply

Product ID: 99843600

Details

Brand
MJR Tumblers
Grit Material
Premium
Grit Type
Coarse
Item Weight
2 pounds
Material
Premium

🔄Works with rotary & vibratory tumblers

⏱️Aggressive cutting for faster material removal

⚙️60/90 grit extra coarse for rapid shaping

R1444

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

Description

⚡ Shape stones like a pro — fast, flawless, and fiercely efficient!

STAGE 1 POWERHOUSE - Kickstart your rock polishing with ultra-aggressive 60/90 grit silicon carbide that shaves down rough edges fast.
SPEED MEETS PRECISION - Experience rapid shaping and smoothing that preps stones perfectly for the finer polishing stages.
UNIVERSAL COMPATIBILITY - Seamlessly fits both rotary and vibratory tumblers, keeping your workflow smooth and uninterrupted.
TRUSTED AMERICAN QUALITY - Proudly USA-owned and veteran-operated brand delivering consistent, premium lapidary supplies.
VERSATILE FOR ALL PROJECTS - Ideal for rocks, minerals, and sea glass—perfect for hobbyists and pros aiming for flawless finishes.

MJR Tumblers 60/90 Grit Silicon Carbide is a premium, extra coarse 2 lb polishing compound designed for the initial stage of rock tumbling. Compatible with rotary and vibratory tumblers, it aggressively shapes and smooths stones, minerals, and sea glass, ensuring a fast and efficient start to your lapidary projects. Backed by a trusted USA-based veteran-owned brand, it offers reliable quality for hobbyists and professionals alike.

Specifications

ASIN	B07F97K8XL
Best Sellers Rank	#8,238 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Tumbling Media
Brand	MJR Tumblers
Brand Name	MJR Tumblers
Compatible Material	Premium Silicon Carbide
Customer Reviews	4.7 out of 5 stars 684 Reviews
Grit Material	Premium Silicon Carbide
Grit Material Type	Premium Silicon Carbide
Grit Number	90
Grit Type	Coarse
Item Weight	2 pounds
Manufacturer	MJR Tumblers
Material	Premium Silicon Carbide
Material Type	Premium Silicon Carbide
Part Number	MJR2p60/90

Reviews

L**A

Did the job very well

Works like it's supposed to, easy to use, good quality of grit, rocks look good after stage 1 polish. I will purchase this again as well as stage 2 and 3 grits.

21.10.2024

P**L

Good grit

Excellent quality and the free shipping is a plus!

4.12.2025

D**S

Just #60-90 grit, nothing more

The order came quickly, and was the best deal for #60-90 grit that I found. Other vendors created kits with additional packets of various sized grit, which I didn't need.

28.04.2026

J**S

Glass Tumbling Go-To

Bought it to tumble glass and it works like a charm. Saw some comments about it being underfilled so I weighed mine and it came in a 3.977lbs, so just a little under. Package was well-sealed in a thick bag.

17.08.2022

K**E

Grit

One of my favorite media to use.

23.11.2025

D**E

MJR is fast and free!

MJR always delivers the best grit for my rock tumbling. It was delivered quickly, just a few days, and is always free shipping and packaged well.

15.05.2025

C**A

Perfect!!!

Just as described:)) Thank you A+++

20.09.2025

R**C

Works great

This product is perfect to resurfacing my knife sharpening wheels .

18.01.2025

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

R1444

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

View all Trustpilot reviews