> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Australian Geographic STEM Rock Tumbler

**Type:** Product page · **SKU:** CE10215 · **Brand:** [Core Electronics](https://core-electronics.com.au/brands/core-electronics-australia)
**Page:** https://core-electronics.com.au/australian-geographic-stem-rock-tumbler-set.html ([markdown](https://core-electronics.com.au/australian-geographic-stem-rock-tumbler-set.html.md))

Spin rough rocks into shiny stones with this motorised rock tumbler set, complete with premium polishing powders and DIY jewellery pieces...

## Pricing

- **Price:** $97.05 (inc GST) — $88.23 AUD, exc GST
- **Quantity discounts:** 6+ $85.58 (exc GST) · 12+ $83.82 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 24 and Aug 27.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=CE10215:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/CE10215:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

Experience the captivating process of transforming rough rocks into dazzling gemstones with a specialist rock tumbler kit. Ideal for a variety of creative and professional settings, it enables quick exploration of geology principles and hands-on prototyping for decorative or educational projects. A sturdy, motorised design and complete accessory set offers a simple path to sparkling finishes, whether it is for classroom experiments or inventive jewellery-making.

**Technical Specifications**

- Motorised rock tumbler with a robust build and stable power connection
- Power Supply: 6 V DC, 0.5 A mains adapter with barrel plug
- Included Polishing Media: 4 premium polishing powders
- Number of Pieces: 18 (including tumbler, unpolished rocks, polishing powders, and accessories)
 
**How to use**

To begin creating vibrant, polished stones, simply fill the drum with the provided unpolished rocks and the first polishing powder, then secure the lid firmly before starting the tumbler. Progress step by step through each polishing stage, ensuring the tumbler runs for the recommended duration with fresh powder. Once the stones have reached the desired sheen, attach them to the jewellery accessories using the included glue to form unique key chains, necklaces, or other creative items.

**What’s included**

- Rock tumbler unit and power cable
- An assortment of unpolished rocks
- Four premium polishing powders
- Ten jewellery accessories (key chain with connector, setting holders, necklace chain, adjustable rings, earring hangers)
- Glue for affixing polished stones
- 6 V DC, 0.5 A mains power adapter
- Instruction manual

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/C/E/CE10215-1.jpg)