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Aussie Sapphire – The Lapidary Warehouse

The Aussie Sapphire Blog

Last Build Date: Tue, 12 Apr 2016 05:04:21 +0000


Gyroc Model B – what’s the problem??

Thu, 17 Sep 2015 05:49:59 +0000

The Gyroc Model B has been the workhorse machine in many jewellery studios for many years – the smallest 3 pound model is an ideal size for the small scale polishing requirements of jewellery makers.  While the 3A Lortone Rotary tumbler is a similar size and also a fantastic machine for the job, we do […]

Tumbler Size Options

Mon, 09 Mar 2015 04:06:11 +0000

We are often asked about sizes of the various tumblers in our range. While information about barrel/bowl dimensions is included in the listings, it can be a bit confusing to compare between them. So we have put together a chart which outlines the dimensions and volumetric capacity of the most popular sizes. CLICK HERE TO […]

Slab Saw Coolants

Sun, 23 Nov 2014 02:33:49 +0000

We are often asked what is the best coolant to use in a rock saw and given that there are lot of different “recipes” out there, we thought a more thorough look at this topic would be useful. The job of the coolant is three-fold: to cool both the blade and the material being cut to […]

Classifier Mesh Sizes

Sun, 16 Nov 2014 06:21:22 +0000

Classifiers are used to size material accurately for classification – often used by gold prospectors who need to size concentrate for use in spiral wheels or the like. 1/2 inch (the largest screen) is about 4 holes per square inch (use to remove worthless larger rocks) 1/4 inch is about 16 holes per square inch […]

Lapidary – where to start?

Thu, 16 Oct 2014 07:00:23 +0000

We often get calls from people who are interested in rocks and gems, would like to get started in the lapidary hobby but dont know where to start. It is a good question but a very BIG one that will need some research first. First question is why type of work are you interested in? […]

Cleaning bolts in a tumbler – PART 2

Wed, 02 Apr 2014 05:07:02 +0000

Part 2 of this article covers use of a rotary tumbler for this job. In this test, we have used both #80 and #46 silicon carbide grit as well as medium cut ceramic media (triangle shape) – a bit water is added for the rotary type tumblers – aim to fill the barrel up to […]

Cleaning bolts in a tumbler – PART 1

Wed, 02 Apr 2014 04:35:29 +0000

Every now and then we get asked about cleaning bolts in a tumbler so we thought it was time to post a few pictures with extra information.  Tumblers are great for cleaning up all sorts of metal objects as it takes a lot of the tedious hand-work out of the job. There are a few […]

Rock Tumbling FAQ

Mon, 04 Nov 2013 05:02:16 +0000

Rock Tumblers are one of our biggest sellers but you may have questions – see the FAQ below and it is very likely you will find an answer. HOW LONG DOES IT TAKE? Time varies but when using a standard rotary (barrel) tumbler, it can take around 4 to 5 weeks of continuous operation. It […]

Info about Stainless Steel

Thu, 31 Jan 2013 06:43:37 +0000

Stainless steel is an important material in the lapidary industry so we thought it might be a good idea to go over some information to help you understand more about it. Stainless steel is an alloy of steel with a minimum content of Chromium (at least 10.5%) – there are a range of different alloys […]

New website for Glue

Sat, 04 Feb 2012 02:20:25 +0000

We’ve been looking for a reliable alternative to Tite-On dopping epoxy for a while now.  It has proved to be a little more difficult than it should have been until we remembered a great workshop product out of the USA called JB Weld.  I’ve used this for many years in my days as a plant […]