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Gemstone Discussions / Re: My new blog and You Tube channel information
« Last post by Findem on June 26, 2019, 02:24:29 PM »

It's been quite a while since I added to my blogs. I'm extending the New England Minerals blog with a series based on my unpublished book "Field Geology of the Shoalhaven District". It's now up to Part 5 dealing with the Kiama district. There's a new series in the Blue Mountains Walks blog based on a 1938 guide map.
The links to both appear below. Blue Mountains Walks New England Minerals/Geology

I would appreciate your subscriptions to my YouTube channel. You will find a subscription spot at the beginning of every video. Google pays a small amount to its creators, based on ads clicked on. This applies to both blogs and videos, however a minimum of 1000 subscribers is required for YouTube. It has taken me 6 years to get to 750 subscribers. So, please subsccribe!
Findem (John)

Gemstone Faceting / Re: TV glass toxicity?
« Last post by roughcreations on June 26, 2019, 11:56:26 AM »
Yes an interesting part of the world. I used to work in a gold mine south of Kalgoorlie back in the late eighties, however I didn't actually collect this piece myself - I was given it at lapidary club - it has some diamond saw cuts. I will ask the person who gave it to me what shape it was initially when I see them next. Here is another view:

Gemstone Faceting / Re: TV glass toxicity?
« Last post by Rusted on June 26, 2019, 09:33:50 AM »
Broad arrow pub, that was an interesting place back in the day.

Could your purple beer glass actually be a part of a telegraph pole insulator?
Gemstone Faceting / Re: Stepper motors Fantasy machines
« Last post by MakkyBrown on June 25, 2019, 10:44:42 PM »
I'm a bit busy to reply in detail atm.I'll get back to you soon.
Gemstone Faceting / Re: TV glass toxicity?
« Last post by MakkyBrown on June 25, 2019, 10:37:38 PM »
Big low RI heart/trillion/pear. Three fold symmetry that is powerful at low RI. 
Like this, Gemray at RI 1.52 :) Chat in July about machine.CheersAndrew

General Discussion / Re: lamberts
« Last post by sapphireminer on June 25, 2019, 10:27:28 PM »
I did ask verbaly for good colour not weight but that was at gemfest  everyone was busy and I didnt get it put in writing so I guess some is on me but if you could see the end result you would know what I mean. Eg a 1 carat blue yellow shaped like a pear that has a small yellow band across the center and near black top and bottom some have more silk in them than than the silk road and yet I never sent any that had silk . But on the bright Eric who runs Lamberts in Bangkok is a very nice person and took
me for a tour of there jewellery making area in Bangkok when I showed at his office. Dave
Gemstone Faceting / Re: TV glass toxicity?
« Last post by roughcreations on June 25, 2019, 08:11:59 PM »
Shouldn't that be 'West End' topaz rather than Tooheys for S.A.? Spent a lot of time travelling the stretch of road between Goolwa and Victor in my earlier years.
I have this piece of Broad Arrow Pub amethyst I am pondering how to cut - it's actually the base of a beer glass..

Gemstone Faceting / Re: TV glass toxicity?
« Last post by Ghost on June 25, 2019, 07:37:46 PM »
I have a very nice piece of Toohey's Topaz that I cut from rough that was found on the roadside in Victor Harbor.
Gemstone Faceting / Re: TV glass toxicity?
« Last post by roughcreations on June 25, 2019, 07:26:30 PM »
Hi Makky,
Thanks for the welcome. I was on this forum lurking a few years ago, but my account got banned because I was sometimes behind a VPN, and the forum software doesn't like that, it automatically labelled me as a spammer, lol.
I am really interested in encoders after hearing from you about their application to faceting machines, and also now that I searched and found the relevant forum thread I understand the requirements a lot better.

I bought my trusty Facetron from the fine folks at Aussie Sapphire a few years back, the machine has an exposed moving pivot bolt on the side facing the user, the other end of the pivot bolt is covered with a block of alloy, housing the dial gauge etc. It seems like an encoder should be quite do-able, at least from first impressions and a thread for Facetron conversions might be quite a good resource given the number of owners of this brand on the forum. I am not in any great hurry, but it would be good to get an idea of the work involved for this make sometime in the next few months when time allows.

Yeah, the TV glass is a novelty I guess, but there's lots of other readily available gemstones out there that look even better when well cut (smoky quartz anyone?).

Ask a "Silly" Question / Re: Moulding Gold
« Last post by FlashGP on June 25, 2019, 06:10:15 PM »
Hi Moth,

There are tables you can look up to give the ratios neede for the desired colour, yellow, rose, white (also the less common purple, green and black).  You would need ti get the quantities for 18ct and subtract them from 9ct to work out how much impurity to add to 1 oz of 18ct to make it 2 oz of 9ct.

If the percentages are the same, you could use gold alloying beads from AJS or A&E Metals to oncrease the dilution of the hold and turn 18ct into 9ct gold.  These beads are not gold, but an alloy which when added to pure gold makes the quantity of carat gold you want.  They usually also include deoxidising agents.
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Recent Activities

My new blog and You Tube channel information by Findem
[June 26, 2019, 02:24:29 PM]

TV glass toxicity? by roughcreations
[June 26, 2019, 11:56:26 AM]

Stepper motors Fantasy machines by MakkyBrown
[June 25, 2019, 10:44:42 PM]

lamberts by sapphireminer
[June 25, 2019, 10:27:28 PM]

Moulding Gold by FlashGP
[June 25, 2019, 06:10:15 PM]

Am I Lucky, or What? by Bucket
[June 25, 2019, 11:01:16 AM]

Advice needed on the Hall Xtra faceting machine by Moth
[June 25, 2019, 08:48:00 AM]

Expandable drum by Aussie Sapphire
[June 20, 2019, 05:36:54 PM]

Specific Gravity test by Percy1
[June 17, 2019, 07:05:39 PM]

Can you believe it or not? by steve f
[June 17, 2019, 06:25:58 PM]

Fossicking from Rubyvale by Tsoro86
[June 17, 2019, 01:44:31 PM]

Help with info on Faceting Sapphire Overseas by Rusted
[June 17, 2019, 07:53:03 AM]

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