"2 rand" is a South African gold coin the same specifications as a sovereign, struck from 1961 to 1983. There's also a much older "1 pond" coin that's the same spec as a sovereign that dates pre-1900. There's also regular South African sovereigns. Personally I use digital scales for coins, and try to stick to ones I know.
Thanks goldpelican, any specific realiable digital scale recommandation and where I can purchase one? Cheers A
I'm quite happy with the ones I reviewed in this thread: http://forums.silverstackers.com/topic-1961-digital-scales.html Another recent thread on digital scales: http://forums.silverstackers.com/topic-6032-digital-scales.html For the average stacker I don't see the need for expensive scales - the technology is pretty mature. As Ageo pointed out in the second thread however, if you're dealing with large quantities of scrap on a regular basis, you might want to splurge on the higher end gear.
It works fine. I have a review on it here somewhere. Also had a review of it on youtube, before someone complained and it was removed, due to 'trademark violation'.
I remember your review - I guess I'm more worried about whether I can work it ok. You know, user error
It works for the following gold coins: * British Sovereign / 2 Rand * 1 oz (Krugerrand, American Eagle, Isle of Man Angel, Britannia) * 0.5 oz (Krugerrand, American Eagle, Isle of Man Angel, Britannia) * 0.25 oz (Krugerrand, American Eagle, Isle of Man Angel, Britannia) * 0.1 oz (Krugerrand, American Eagle, Isle of Man Angel, Britannia)
Picked up a 1/2oz bar today, I hadn't seen this style bar in this size before, so thought I would try out Sticks' test. [imgz=http://forums.silverstackers.com/uploads/478_suisse_1a.jpg][/imgz] Dry weight: 15.56g [imgz=http://forums.silverstackers.com/uploads/478_suisse_2.jpg][/imgz] With scales tare'd: 0.80g (tried and tested 'eggcup' method .... lightest vessel I have) [imgz=http://forums.silverstackers.com/uploads/478_suisse_3.jpg][/imgz] 15.56 / 0.8 = 19.45 ... gold gold gold [imgz=http://forums.silverstackers.com/uploads/478_suisse_4.jpg][/imgz] Thanks again Sticks for the test, very handy for us High School science dropouts.
hey i did this method on a 1kg silver bar my dad being a crafty one said, it wouldn't work if the bar had bubbles in it, as this would increase the volume. any other good ways to test bars ( besides that expensive xray thing)
I really like this density method posted by sticks! How do you test for sterling or any other non-pure silvers though? thanks.
Exactly the same way. It finds the specific Gravity of a material. So do the test the same way you will just get a different result. If you get an SG radically different from what you are expecting, then you may not have what you thought you did. (Water has an SG of 1 for reference). Tungsten has an SG of 19.25. SG of: .999 Gold = 19.45 0.9167 Gold (22 Carat) = 18.44 (Balance being copper) .999 silver = 10.49 0.925 Silver (Sterling) = 10.37 (Balance being Copper) .999 platinum = 21.45
So it would depend on what silver is alloyed with? Is there a formula for different forms of silver less than .999?
silver is usually just done with copper. so find the total weight. and the purity. 925 would be (10.49*.925) = 9.7033 (8.92*.075) = 0.669 -----------------= 10.3723 = grams per cm3 of Stirling. i think
ok. i just did a SG test on pure copper and came up with 9.16 gcm3 whats wrong? coin 28.4 grams container and water 289.1 grams container water coin 292.2 grams.
The only method we use is chemical analysis from inside the item i.e destruction testing. This is undertaken at an approved laboratory. Whilst this is somewhat expensive (and destroys the item) it is a small price to pay in the long run. Certainly would not suggest this is right for everyone but is a lot better than the 'drop test' - audible, acid or mustard and fire. Even better than XRF scan. Disclaimer: I am directly affiliated with www.bullionnz.com
