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#51

Mackka
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From: Brisbane
Joined: 18 February 2014
Posts: 730
Member
09 April 2014 08:35 pm

Hey Colin and Lee are they from McPhersons Creek?
Cheers
Mackka

#52

richo966
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Joined: 06 October 2013
Posts: 865
Member
09 April 2014 08:35 pm

nice looks like an ocean  smile

#53

Twapster
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From: Hunters Hill, NSW
Joined: 21 October 2013
Posts: 1,668
Member
09 April 2014 11:00 pm

dezman wrote:

https://www.prospectingaustralia.com.au … _image.jpg
The girl was one of the best cutters in lighting ridge at the time and said you just knock off what's poking out.
Gee I lost some opal size to back yard cutters back then, who grind away like....

Very Nice!


Peter. Love trout fishing, gold prospecting, sapphires,have Highbanker, pans,sieves ,X-terra 70,F1A4,GPX4500. Bring it on!

#54

Colin&Lee
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From: Canberra, ACT
Joined: 28 February 2013
Posts: 658
Member
10 April 2014 05:50 pm

Mackka wrote:

Hey Colin and Lee are they from McPhersons Creek?
Cheers
Mackka

G'day Mackka,

The greenie is from Mcphersons and the others are from Grabben wink

Cheers

Col


Wal banker and a bunch of pans and sieves smile

#55

Kingsolomon
Member
Joined: 16 May 2013
Posts: 480
Member
14 April 2014 12:38 am

Topaz ... First stone I'm cutting..

1397396284_image.jpg


Got stuff to dig stuff up .. Got stuff to detect metal stuff .. Got stuff to facet stuff ...

#56

Kingsolomon
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Joined: 16 May 2013
Posts: 480
Member
14 April 2014 12:46 am

Just cut and polished the pavilion ... Brilliant round . Show finnished stone soon..1397396775_image.jpg


Got stuff to dig stuff up .. Got stuff to detect metal stuff .. Got stuff to facet stuff ...

1 user likes this post: Retirement Stone

#57

Heatho
Moderator
From: Sydney, NSW
Joined: 29 April 2013
Posts: 8,003
Moderator
14 April 2014 08:04 am

F'n awesome mate. Great start there, can't wait to see it finished.


Minelab GPX 5000, SDC2300, CTX3030, Pro-Find-25, patience, lot's of patience.

#58

Varts
Member
Joined: 27 August 2013
Posts: 476
Member
14 April 2014 02:31 pm

Nice king ,
Lots of girdle still,are you going to cut the top so your main facets match,or are you going to leave a chunky girdle( leaves more weight and plays with the light a bit,I cut a garnet like this and don't mind it)
Varts


Varts........................................................................................varts...............................

#59

Twapster
Member
From: Hunters Hill, NSW
Joined: 21 October 2013
Posts: 1,668
Member
14 April 2014 05:05 pm

Great work there, inspiring me to get my own faceting equipment!


Peter. Love trout fishing, gold prospecting, sapphires,have Highbanker, pans,sieves ,X-terra 70,F1A4,GPX4500. Bring it on!

#60

Kingsolomon
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Joined: 16 May 2013
Posts: 480
Member
15 April 2014 12:44 am

Varts wrote:

Nice king ,
Lots of girdle still,are you going to cut the top so your main facets match,or are you going to leave a chunky girdle( leaves more weight and plays with the light a bit,I cut a garnet like this and don't mind it)
Varts

Didn't think about tat so much varts ... Just trying to get through first step without hassle . Have a great teacher and said I progressed faster than students over his last 40 odd years . There's lots of room there for me to ... Work with ( the girdle), have a bit of misshap ... Whatever . Thanks for the thoughts though , got a photo of your cut?. Hoping its not like catching a fish first cast , then not getting more for the rest of the day!
   Already planning on getting more machines . Should be up and running to cutt stones ( sapphires ) which have now taken over any waking thoughts I have . Just got to keep digging them to supply myself with rough . There's always a catch.....

Last edited by Kingsolomon (15 April 2014 12:46 am)


Got stuff to dig stuff up .. Got stuff to detect metal stuff .. Got stuff to facet stuff ...

#61

Twapster
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From: Hunters Hill, NSW
Joined: 21 October 2013
Posts: 1,668
Member
22 April 2014 07:41 pm

Ok finally got my scales delivered so weighed my little beauty

1398155955_greensaph1e.jpg

Just over 7 carat uncut so will now send her away to see what comes back. Will be back to the same spot this weekend so hoping some of her bigger cousins are lurking in the dirt.


Peter. Love trout fishing, gold prospecting, sapphires,have Highbanker, pans,sieves ,X-terra 70,F1A4,GPX4500. Bring it on!

#62

snafu
Member
Joined: 30 August 2013
Posts: 16
Member
01 May 2014 12:42 pm

G'day Peter,

The yellow colour you are seeing in your stone is more likely to be the result of the intense brightness of the led light you are using and not necessarily the colour of the stone in the finished cut state.

The frequency of led light will also result in false colouring of many objects, especially those that are transparent or translucent.

To give you a more accurate indication of the finished cut colour you need to know the "on table" colour of the crystal as well as the "cross table colour if it differs at all. A good example of this is with the images you posted of your blue stone that had what you described as a green tinge. At an educated guess, I would say that the green tinge was actually the "cross table" of the crystal and as most cutters would concur, a dark blue with a green cross table will generally result in a very dark cut stone. The best blues are light in colour with a blue cross table.

With some stones the cross table can have the effect of creating incredible colours under different lighting. An example of this effect happened with the stone pictured below shown in natural light. It is a 12.5 ct yellow/green parti which was the tip of a crystal which meant less loss of material in cutting . It ended up as a 6.2 ct round brilliant that was a vivid yellow under daylight and turned to an incredible apple green under artificial light. Unfortunately I don't have any pics of the cut stone as it ended up in a pendant for a customer in Germany.

1398908336_image3.jpg

Hope this info helps.

Jeff


"never trust a man who doesn't drink or a town without a pub"

2 users like this post: Wally69, Twapster

#63

Twapster
Member
From: Hunters Hill, NSW
Joined: 21 October 2013
Posts: 1,668
Member
01 May 2014 04:20 pm

Mate appreciate the info. I find out soon how it will cut.  Hopefully no dramas!


Peter. Love trout fishing, gold prospecting, sapphires,have Highbanker, pans,sieves ,X-terra 70,F1A4,GPX4500. Bring it on!

#64

LD.
Member
Joined: 24 February 2014
Posts: 158
Member
01 May 2014 05:13 pm

Twapster wrote:

Ok finally got my scales delivered so weighed my little beauty

https://www.prospectingaustralia.com.au … saph1e.jpg

Just over 7 carat uncut so will now send her away to see what comes back. Will be back to the same spot this weekend so hoping some of her bigger cousins are lurking in the dirt.

Hey there Peter!

You may be having it cut in Australia anyway so no probs but I remember reading a few times where Wal suggests not to risk sending anything overseas for cutting that is over a carat.

Cheers,
Laurence  smile


Love gems of all shapes, colour & sizes, lucky because I've definitely got the tiny blue ones covered, now I'm looking for some big red ones. Getting into faceting will accept advice

#65

Lefty
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Joined: 01 May 2014
Posts: 916
Member
01 May 2014 06:36 pm

Stunning colour in that stone there Jeff! smile

#66

Lefty
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Joined: 01 May 2014
Posts: 916
Member
01 May 2014 06:43 pm

This was one of our biggest from Russian gully, went 155 carat. Most of it seems a bit dark unfortunately. Cutting these windows was as far as it progressed, this is as far as dad has gotten with it in the 30-odd years since he found it.

7565447252_5c31d230da_z.jpg

7565454338_b2ca358973_z.jpg

7565462160_919cb97c16_z.jpg

#67

Kingsolomon
Member
Joined: 16 May 2013
Posts: 480
Member
01 May 2014 06:49 pm

Looks like it has potential to me. Possibly a few stones to cut from an epic size stone , maybe just keep it for another thirty . Don't stumble upon those everyday....


Got stuff to dig stuff up .. Got stuff to detect metal stuff .. Got stuff to facet stuff ...

#68

Lefty
Member
Joined: 01 May 2014
Posts: 916
Member
01 May 2014 06:55 pm

What do you reckon about that electric blue piece in the top Kingsolomon? Might cut a nice stone out of that bit? It seems to go right through - I would be stoked if the entire stone was that colour.

If it gets kept for another thirty years, I should inherit it big_smile

#69

Kingsolomon
Member
Joined: 16 May 2013
Posts: 480
Member
01 May 2014 07:09 pm

Looks like ( I'm assuming it has) a green cross table , which usually cuts dark stones. There's nothing wrong with dark cut stones . Some of the best cuts I've seen are dark. The piece at the top will probably cut lighter , but then again more of it might too. Haven't had much experience or seen many stones off that size. I'd say you would probably get more out of it than you think... Optimism!
  That could be a white or light blue pipe , which will brighten that section..

Last edited by Kingsolomon (01 May 2014 07:11 pm)


Got stuff to dig stuff up .. Got stuff to detect metal stuff .. Got stuff to facet stuff ...

#70

Kingsolomon
Member
Joined: 16 May 2013
Posts: 480
Member
01 May 2014 07:21 pm

Like this 7 k stone a friend gave me to cut ... Has a lovely white pipe in the centre , shape like a triangle...1398932432_image.jpg

Could be something similar in your stone...


Got stuff to dig stuff up .. Got stuff to detect metal stuff .. Got stuff to facet stuff ...

1 user likes this post: Beno&Sars

#71

Varts
Member
Joined: 27 August 2013
Posts: 476
Member
01 May 2014 07:25 pm

Lefty

Now that is a beauty!!

Hey kingsolomon did you finish that gem you were cutting?


Varts........................................................................................varts...............................

#72

Kingsolomon
Member
Joined: 16 May 2013
Posts: 480
Member
01 May 2014 07:27 pm

Varts wrote:

Lefty

Now that is a beauty!!

Hey kingsolomon did you finish that gem you were cutting?

Almost .. Have started some others also . Ill post e few finished ones up early next week...:)


Got stuff to dig stuff up .. Got stuff to detect metal stuff .. Got stuff to facet stuff ...

#73

Varts
Member
Joined: 27 August 2013
Posts: 476
Member
01 May 2014 07:48 pm

Cool

I cut two stones at the same time
Two hand pieces saves changing changing the wheel so often

How do you charge your copper with dust

My father showed me how he charges it with sowing machine oil and a big round river stone ,a bit of a task.


Varts........................................................................................varts...............................

#74

Kingsolomon
Member
Joined: 16 May 2013
Posts: 480
Member
01 May 2014 07:56 pm

I use a dual polishing lap... A special alloy, it has a section for 3000 and 50000 diamond paste/grit that I burn in with a piece of leather. This need to be cleaned and replaced with new grit as it lends itself to sticking to the stone.


Got stuff to dig stuff up .. Got stuff to detect metal stuff .. Got stuff to facet stuff ...

1 user likes this post: KarlS

#75

Wally69
Member
From: Sydney
Joined: 13 December 2013
Posts: 2,154
Member
01 May 2014 08:19 pm

Kingsolomon wrote:

I use a dual polishing lap... A special alloy, it has a section for 3000 and 50000 diamond paste/grit that I burn in with a piece of leather. This need to be cleaned and replaced with new grit as it lends itself to sticking to the stone.

Do you go straight from 3000 to 50000? Job done! Or are there more steps?

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