⭐ Alluvial Show n Tell

grubstake

Moderating Team
Joined
Oct 20, 2014
Messages
3,696
Reaction score
5,279
Location
Perth, WA
Thanks for the kind words. :)Yup, I was pleasantly surprised to see the variety of shapes in such tiny pieces. I guess that's normal but it still made the use of a microscope worth it. I'd wondered if I was seeing micro gems in some of my samples. Reds, oranges, and light greens are present in many. Peridot for the latter perhaps? I've kind of been dismissing the orange ones as iron stained quartz but have no real basis for doing so. OK to post those here or should they be over in gemstone posts?
Probably better in the Gemstones section I think. Hopefully there'll be more chance of the experts in that field seeing them and commenting then.
 
Joined
Feb 8, 2022
Messages
13
Reaction score
29
Back on the micro-gold briefly, has anyone seen anything like this before? Colour and behaviour matched other micro gold in the same sample so I've assumed it is but.... The piece is centre right, kind of crescent moon shaped. Very, very thin. For scale, it's sitting on top of very fine black sand, quartz etc mix. The clear quartz fragment to its right is maybe 1mm. I only ask as the edge just looks a little too perfect compared to all the other micro bits I've found so far. If it turns out to be a flake of mica I'll go and stand in the corner of shame for the night. 🤦‍♂️
 

Attachments

  • 20220501_210257.jpg
    20220501_210257.jpg
    4.7 MB · Views: 0

grubstake

Moderating Team
Joined
Oct 20, 2014
Messages
3,696
Reaction score
5,279
Location
Perth, WA
The surface looks quite granular (or is this just pixelation?) and the semi-circular shape seems too regular to be natural:

Circular.jpg
 
Joined
Feb 8, 2022
Messages
13
Reaction score
29
The surface looks quite granular (or is this just pixelation?) and the semi-circular shape seems too regular to be natural:

Agreed. It's a cheap microscope so it does tend to pixelate metallic surfaces. Even pieces that are definitely gold tend to look a little 'off' if the lighting isn't quite right. Definitely looks like something man-made but the small size has me wondering just what that could be... I'll have a dig through my vial of micro bits to see if I can find it again and take some more photos.
 

Windar

Craig
Joined
Jun 27, 2020
Messages
75
Reaction score
238
Location
Adelaide, SA
Managed to get out last weekend. Sat with the kids and Sun by myself. Went ok for a few hours each day at 0.18 first day (pic on the scales) and quarter gram on the Sunday by myself (pic in the pan). Made a difference to my back taking an old camp chair to put in the water and sit next to the sluice to feed it. Got to love my 888 from GoldRat with the leg kit now, much easier to find a place to set up and get going. Three tailings tests (after each almost full 40L flexitub) went 1-0-1 specs so have to be happy with that.
So nice to sit there watching the indicator mat develop some colour on it.
Hope to sneak back out tomorrow before the rain comes and the levels change again.
Best of luck to everyone out chasing it!
Cheers
 

Attachments

  • 20220709_under02.jpg
    20220709_under02.jpg
    1.4 MB · Views: 0
  • 20220710_quarterg.jpg
    20220710_quarterg.jpg
    1.2 MB · Views: 0
  • 20220710_slucing.jpg
    20220710_slucing.jpg
    2.7 MB · Views: 0
  • 20220710_sluice legs.jpg
    20220710_sluice legs.jpg
    3.1 MB · Views: 0
Joined
May 12, 2017
Messages
3,014
Reaction score
4,713
Pretty chunky stuff. I am getting it off some bedrock. Trying to work out where its shedding from. Found this this morning on bedrock. Hope to get some more the next few days.
 

Attachments

  • Screenshot_20220808_155624.jpg
    Screenshot_20220808_155624.jpg
    288.1 KB · Views: 0
Last edited by a moderator:

[email protected]

Dustin
Site Sponsor
Joined
Apr 3, 2013
Messages
5,055
Reaction score
4,031
Location
Redcliffe, QLD
Managed to get out last weekend. Sat with the kids and Sun by myself. Went ok for a few hours each day at 0.18 first day (pic on the scales) and quarter gram on the Sunday by myself (pic in the pan). Made a difference to my back taking an old camp chair to put in the water and sit next to the sluice to feed it. Got to love my 888 from GoldRat with the leg kit now, much easier to find a place to set up and get going. Three tailings tests (after each almost full 40L flexitub) went 1-0-1 specs so have to be happy with that.
So nice to sit there watching the indicator mat develop some colour on it.
Hope to sneak back out tomorrow before the rain comes and the levels change again.
Best of luck to everyone out chasing it!
Cheers
looks like an awesome day out mate good to see the legs are serving you well
 
Top