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Specific Gravity of Ironstone

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Specific Gravity of Ironstone Empty Specific Gravity of Ironstone

Post  Last Vintage on Wed Apr 03, 2019 12:22 am

I have some specimens of gold in ironstone and was wondering if there is a good average SG for ironstone to use when calculating the gold content.

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Specific Gravity of Ironstone Empty Re: Specific Gravity of Ironstone

Post  Kon61gold on Wed Apr 03, 2019 1:17 pm

G'day Last Vintage, welcome to the forum

2 of the main minerals or or oxides of Iron consist of Haematite & Magnetite.
Magnetite has a specific gravity of around 5.2 & Haematite between 5.3 & 5.5.
If you're not sure as to how much Haematite or Magnetite your speci contains or consists of, go by using an average sg of the 2 oxides of say 5.4 sg & you should come pretty close to  the amount of gold contained within your speci.

Cheers Kon. T25
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Specific Gravity of Ironstone Empty Thanks!

Post  Last Vintage on Wed Apr 03, 2019 1:29 pm

Thanks so much for your reply. Pretty much what I had guessed.

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