Teaching ourselves how to make Gemstone Crosses

We recently had a request from a lady who wanted a cross made from rose quartz, fortunately there is no rush for this item as we need to figure out how to make these, good job as we needed to teach oursleves how to do it.

Seems I made a mistake when I decsribed these as crucifixes, I have been informed that a crucifix has the figure of Jesus on the cross, sorry about that, I will now describe these peices as crosses.

We recently had a request from a lady who wanted a cross made from rose quartz, fortunately there is no rush for this item as we need to figure out how to make these, good job as we needed to teach oursleves how to do it.

This post is about the initial learning phase of making these cross shapes and the problems we faced and how we resolved those problems.

We selected green Aventurine as we have plenty of this in our rough rock store.

So the first job was to cut some slabs on the slab saw which was easy enough, then we marked out the cross outline with an aluminium scribe, again easy enough!

Now we returned to the slab saw to cut out the cross shape, this is where we hit two problems, the first was that it was difficult to see the scribed lines because of the saw oil, the second, and we hadn’t realised this. We found that if we cut right up to the scribed line and then reversed the stone the cut actually extended beyond where we wanted it, this is because of the circumference of the saw blade.

Time for a cup of tea and a bit of think about these problems, during our discussions we remembered the small diamond cut off wheels we had bought an age ago but had never used. So we fitted one onto a mandrel and then onto out Foredom flex shaft drill. Eureka, this sorted out the problems, first of all because water is used as the coolant on these wheels so no problem seeing the scribed lines and also it was much easier to make the cuts simply by cutting close to the line and then reversing the stone and continuing the cut from that side. Se finally got a couple of cross shapes!

The next step was to drill a hole of about 2mm through the top of the cross so a leather thing could be threaded through. I find it’s better to do the drilling at this stage rather than drilling a finished polished item simply because any marks or scratched that might be caused by the drilling process or holding the item in a vice can be ground out at later stages.

So we drilled a pilot hole of 1mm with a triple ripple diamond bit, then opened it using 1.5mm and 2mm diamond twist drill bits, no problems there, just the time involved, it takes an age to drill holes in rock.

aventurine crucifix showing the hole for the leather thong
aventurine crucifix showing the hole for the leather thong

Then we moved onto the cab machine, but only got as far as the roughest wheel and then ran out of time.

The first green aventuirne crucifix preform
The first green aventuirne crucifix preform

We will continue this post when we have made further progress on these 2 cross preforms.

the second aventurine crucifix preform
the second aventurine crucifix preform

Best regards

Dave

Introducing the Stamford Artisans Guild

Yes, our small town of Stamford in Lincolnshire now has its very own crafters group, the Stamford Artisans Guild.

Yes, our small town of Stamford in Lincolnshire now has its very own crafters group, the Stamford Artisans Guild.

Recently formed by my wife Shalini and a few of her friends, who all practice various crafts, the aim is to provide a forum for all local crafters.

The Guild is having its first craft show on 6th December in Stamford Arts Centre in time for Christmas. At the show you will only find genuine hand crafted items that have been made by the people at the show, there will be no imported jewellery or other items that seem to find their way onto craft shows

The Guild is looking for new members and crafters who would like to have a stall at the above show.

Please visit their web site for more information:

http://www.stamfordartisansguild.co.uk

Best regards

Dave