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#1

xcvator
Member
From: Mornington Peninsula
Joined: 12 September 2016
Posts: 1,941
Member
28 July 2020 03:39 pm

Couldn't/didn't see any cracks before I started.

80 grit, then 150, then 320 and I stopped when I saw all these cracks appearing and bits breaking off of the edges.

Were they there all along ?
Did I get them too hot when dopping ? Hot enough to keep the wax soft for a minute or so.
They didn't feel even warm when grinding them

Do I need to get a very strong magnifying glass to check for this sort of thing before starting to grind stones ?

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#2

kemjak57
Member
Joined: 25 February 2013
Posts: 1,601
Member
28 July 2020 06:16 pm

When I saw the title I thought wow that must be painful. big_smile big_smile


Get a life! Start prospecting........

2 users like this post: numpty, StoneTheCrows

#3

limpalot
Member
From: East of Wodonga vic
Joined: 31 July 2015
Posts: 1,298
Member
28 July 2020 07:23 pm

Try a reallll good moisturiser. shite mate I recone that would be painful. cry


Home made sluices x 2 & highbanker, ATX, Garret Supa Sluice, Quanta pan, 2008 - minelab 4500, SPO1, Makro Gold Kruzer

#4

goldtrapper
Member
Joined: 26 September 2018
Posts: 766
Member
28 July 2020 07:53 pm

Very pronounced cracks. Bugger. I would check with a magnifier first.
Or shine a light through them.

#5

jimnyjerry
Member
From: Blue Mts
Joined: 30 December 2012
Posts: 277
Member
29 July 2020 08:30 pm

A good light shone through agates can show up cracks then you need to work around the areas that are not too badly damaged. A percentage of agates from Agate Ck have pressure cracks and fractures from bouncing around etc. Start gently at 100 when shaping then a longer time at higher diamond wheels getting shape right. Long process but worth while smile 80 can really damage the surface and stress the stone

Last edited by jimnyjerry (29 July 2020 08:32 pm)


I try to take one day at a time, but sometimes several days attack me at once.

#6

LoneWolf
Member
From: Gold Coast, QLD
Joined: 12 April 2016
Posts: 4,891
Member
29 July 2020 10:30 pm

Hows your back jerry? Bob told me. wink .... Hope you stay away from ladders for awhile.... Sounds like you were very lucky...

LW...


Growing Old is Inevitable.... Growing Up is Optional.... Union Proud and Union Strong... A.M.W.U Active Member....


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