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#201

22shells
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Joined: 11 September 2014
Posts: 163
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10 May 2018 10:07 pm

Yeah could be beryl. Would be nice to find some of that blue/green tourmaline thumbsup That's big schorl too- biggest schorl crystals I've found are about an inch thick. Biggest terminated schorl end about 15mm. Have found a few smaller double terminated schorl crystals under 10mm.

#202

goldierocks
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Joined: 10 January 2015
Posts: 798
Member
13 May 2018 12:11 pm

22shells wrote:
Heatho wrote:
goldierocks wrote:
Heatho wrote:

I do see what you mean but I still think they are garnet, will be interested to see what you get. Anyway I could be wrong, hopefully Goldierocks has a look at the pic for you. thumbsup

Unsure but I agree that the crystal shape doesn.t look like garnet. Corundum will scratch anything except diamond. I reckon corundum is a good bet if cross-sections hexagonal. https://www.prospectingaustralia.com.au … rundum.jpg

Here's an example of some garnet that looks quite similar to the stuff that 22shells has found with the hexagonal crystal structure. To me his stones look more garnet that corundum but hey it's possible that it is corundum, I've just never seen corundum like it before and I've seen alot of it.

https://roughrockshop.co.uk/almandine-g … r-tumbling

Thanks for the replies. thumbsup Heatho the garnets in that link does look like similar material, but they have the garnet shape. Whereas the stuff I found is more elongated. You're probably used to seeing proper corundum from NSW or QLD! This stuff is from SA, whatever it is. I'll keep trying to see if I can find some better bits. In the meantime here's another pic:
https://www.prospectingaustralia.com.au … 061020.jpg

Definitely not garnet - crystal system hexagonal not cubic. Corundum highly likely.


Robert Benchley...
I have kleptomania, but when it gets bad, I take something for it.

1 user likes this post: Heatho

#203

Schultzy33
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Joined: 05 April 2018
Posts: 12
Member
13 May 2018 09:01 pm

1526205679_04408baf-a155-470a-b008-9f6019ab9c5d.jpg
1526205680_2543f095-2b65-44ad-90e8-fd49b3a1fa81.jpg
1526205682_675baea0-aecc-43ed-824c-9f6e29b3fa06.jpg
1526205683_d7bce98d-8c13-4c92-b4fc-b380d8524429.jpg
1526205685_0af09a42-dfe6-4928-b9ef-5adfd0d449c0.jpgHey guys, I dug this from the alluvial gravels at chapel hill in South Australia. I have been told it’s rhyolite and it has never been found here at this spot and it’s found in qld so I’m curious how it got here. What type of Rhyolite would it be I know there at lots of different types like rain forest Rhyolite ect. Any info and input would be fantastic. Cheers all.

2 users like this post: Gilly47, 7.62marksman

#204

Gilly47
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From: Currently on Tour, NSW
Joined: 18 January 2015
Posts: 428
Member
13 May 2018 10:19 pm

what colours is the dogtooth pls


1 wife 1 dog and a sieve

#205

LoneWolf
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From: Gold Coast, QLD
Joined: 12 April 2016
Posts: 1,738
Member
14 May 2018 12:37 pm

I know lots of people who drop things in other areas, just to confuse people... lol Not saying this is the case here tho...

I have even picked up a small piece of Opal at Emmaville... lol

LW...

Last edited by LoneWolf (14 May 2018 12:37 pm)


Growing Old is Inevitable.... Growing Up is Optional.... Prospectors United Will Never Be Defeated

#206

goldierocks
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Joined: 10 January 2015
Posts: 798
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14 May 2018 02:48 pm

Don't know it there at Echunga but widespread in SA and Vic. Looks like a waterworn pebble so could have come some distance.


Robert Benchley...
I have kleptomania, but when it gets bad, I take something for it.

#207

Schultzy33
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Joined: 05 April 2018
Posts: 12
Member
14 May 2018 02:58 pm

goldierocks wrote:

Don't know it there at Echunga but widespread in SA and Vic. Looks like a waterworn pebble so could have come some distance.

I tumbled the pieces, it was a large rough rock before I cut it up and polished it

#208

goldierocks
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Joined: 10 January 2015
Posts: 798
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15 May 2018 06:44 am

Ok - so I don't know any very local source . There are glacials from previous ice ages and they often contain pebbles transported a long way (the reason we find diamonds in Victoria etc). Ice can move large boondies..


Robert Benchley...
I have kleptomania, but when it gets bad, I take something for it.

#209

Schultzy33
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Joined: 05 April 2018
Posts: 12
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15 May 2018 11:50 am

goldierocks wrote:

Ok - so I don't know any very local source . There are glacials from previous ice ages and they often contain pebbles transported a long way (the reason we find diamonds in Victoria etc). Ice can move large boondies..

Thanks for your help, I guess it will remain a mystery?

#210

Schultzy33
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Joined: 05 April 2018
Posts: 12
Member
15 May 2018 12:01 pm

one last thing is I find heaps of these stones while seiving and panning at chapel hill1526346352_image.jpg, they are always the same shape and about the same size. Any clues?

Last edited by Schultzy33 (15 May 2018 12:06 pm)

1 user likes this post: 7.62marksman

#211

22shells
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Joined: 11 September 2014
Posts: 163
Member
15 May 2018 06:10 pm

Schultzy that looks like the same stuff I've been trying to identify a couple pages back. I think the ones like that are broken chips off those hexagon shaped crystals.
1526368193_p5151024.jpg

1 user likes this post: 7.62marksman

#212

Schultzy33
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Joined: 05 April 2018
Posts: 12
Member
15 May 2018 10:01 pm

The crystal second at top of your pic looks like rutile to me, I’ve found heaps of the stuff. Does it glow red if you hold a light source up to it?

#213

22shells
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Joined: 11 September 2014
Posts: 163
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16 May 2018 06:29 am

Yeah you're right, that one does glow red- probably rutile but it's different to the others.

#214

SWright
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From: Wodonga, VIC
Joined: 15 October 2013
Posts: 243
Member
16 May 2018 12:47 pm

G'Day I recon the stuff that 22shells showed was staurolite. It is all over the higher grade metamorphic areas.

Araluen

2 users like this post: LoneWolf, 22shells

#215

22shells
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Joined: 11 September 2014
Posts: 163
Member
16 May 2018 11:04 pm

I think you could be right SWright. I did a search of staurolite and images and it looks pretty close. Apparently twinning of crystals is common. I hadn't noticed any twins, but I had a look over what I've got and found this one which looks like the twinning they were talking about. Might have to keep an eye out for more twins. thumbsup
1526472226_p5161024.jpg

#216

NortheastGold
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Joined: 15 March 2017
Posts: 16
Member
17 May 2018 12:35 am

Hi Guys, I found this large stone. Not sure if it is just smokey quartz or something else. If anyone can identify it, that would be great.
1526477694_rock2.jpg

#217

goldierocks
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Joined: 10 January 2015
Posts: 798
Member
17 May 2018 06:08 am

22shells wrote:

I think you could be right SWright. I did a search of staurolite and images and it looks pretty close. Apparently twinning of crystals is common. I hadn't noticed any twins, but I had a look over what I've got and found this one which looks like the twinning they were talking about. Might have to keep an eye out for more twins. thumbsup
https://www.prospectingaustralia.com.au … 161024.jpg

You could not have hexagonal cross-sections in staurolite because it is monoclinic. You mentioned hexagonal sections although you have not actually shown any photos.


Robert Benchley...
I have kleptomania, but when it gets bad, I take something for it.

#218

goldierocks
Member
Joined: 10 January 2015
Posts: 798
Member
17 May 2018 06:13 am

22shells wrote:

Yeah you're right, that one does glow red- probably rutile but it's different to the others.

Rutile is tetragonal so the same applies re cross-sections


Robert Benchley...
I have kleptomania, but when it gets bad, I take something for it.

#219

goldierocks
Member
Joined: 10 January 2015
Posts: 798
Member
17 May 2018 06:17 am

Try these foR corundum:

https://www.bing.com/search?q=corundum+ … b59da64ff4


Robert Benchley...
I have kleptomania, but when it gets bad, I take something for it.

#220

22shells
Member
Joined: 11 September 2014
Posts: 163
Member
17 May 2018 05:31 pm

goldierocks wrote:
22shells wrote:

I think you could be right SWright. I did a search of staurolite and images and it looks pretty close. Apparently twinning of crystals is common. I hadn't noticed any twins, but I had a look over what I've got and found this one which looks like the twinning they were talking about. Might have to keep an eye out for more twins. thumbsup
https://www.prospectingaustralia.com.au … 161024.jpg

You could not have hexagonal cross-sections in staurolite because it is monoclinic. You mentioned hexagonal sections although you have not actually shown any photos.

Pic of hexagonal cross sections (ends of the crystal).
1526538706_p5171024-1.jpg

#221

goldierocks
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Joined: 10 January 2015
Posts: 798
Member
18 May 2018 01:15 am

I will stick with corundum


Robert Benchley...
I have kleptomania, but when it gets bad, I take something for it.

1 user likes this post: 22shells

#222

Jeep_girls
Newbie
Joined: 27 May 2018
Posts: 1
Newbie
27 May 2018 05:18 pm

1527401857_gem_2.jpg
1527401857_gem_3.jpg

Hi all, we went to Beechworth this weekend and found this, could anyone Id this please and thank you smile

#223

LoneWolf
Member
From: Gold Coast, QLD
Joined: 12 April 2016
Posts: 1,738
Member
27 May 2018 09:49 pm

Smokey Quartz...

LW...


Growing Old is Inevitable.... Growing Up is Optional.... Prospectors United Will Never Be Defeated

#224

Elliott
Newbie
From: Buderim, QLD
Joined: 07 May 2018
Posts: 6
Newbie
11 June 2018 01:46 pm

Hey everyone!

Just wanted to pop in and say hi. I went for a dig around the creek on my property, and actually I found a really neat little item;

1528685111_ud7zbp1.jpg

I ws just very curious as to what I am looking at. It's like the quartz is growing outward of the inner core, but what would that core be? How would it form? It's just so beautiful, and I never thought I would find anything like this in my own back yard!

big_smile

2 users like this post: PabloP, ktmman

#225

Lefty
Member
Joined: 01 May 2014
Posts: 1,546
Member
11 June 2018 02:53 pm

Nice bit of chalcedony there Elliot! The core is what I wouod probably call "carnelian". It looks like your piece might possibly be the opposite to nearly all the same material that I have found, mine are typically only brightly coloured orange or red in a1mm or so thin skin on the outside of the nodule while inside is translucent white - nicfe looking specimens but dissapointing to try and cab as the colour dissapears. Yours might well be coloured right the way through and worth doing somethjng witht, though its also a nice specimen as is.


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