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Offline AK48Topic starter
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« Reply #10 on: October 28, 2018, 11:31:34 pm »
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OK , i'll be in touch



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Offline giuhalftrack
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« Reply #11 on: October 29, 2018, 02:47:37 am »
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Somethimes romas use alloy of silver... do you have some "liquid tester" for silver ?

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Offline AK48Topic starter
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« Reply #12 on: October 29, 2018, 04:43:39 am »
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well done , i was thinking about that , i'm looking after my liquid tester

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Offline GoldDigger1950
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« Reply #13 on: October 29, 2018, 09:02:20 am »
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Bronze today is mostly copper and brass but other metals were alloyed in ancient times.

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It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.
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Offline AK48Topic starter
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« Reply #14 on: October 29, 2018, 09:19:25 am »
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so , what is the color of bronze an copper alloy because mine piece seems white-gray and shine a little even after cleaning , i suppose it is little bit of silver with bronze and/or copper and it is very hard

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« Reply #15 on: October 29, 2018, 11:16:57 am »
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You can identify an unknown substance by measuring its density and comparing your result to a list of known densities
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Offline AK48Topic starter
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« Reply #16 on: October 29, 2018, 11:59:02 am »
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i'm gonna try but it's just for pure metal and i think mine is alloy ?

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Offline giuhalftrack
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« Reply #17 on: October 30, 2018, 01:11:54 am »
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The oxide on the surface is green and dark green grey... So the copper is part of the composition for sure. As GD as pointed out the alloys in ancient times are different from today. I think the metal refinary technique too was different... So from mineral from different mines you get a different product... Metal minerale are often mixed togheter . Example Lead with silver wich romans know very well... Or copper and tin .. I will classify this piece as "bronze" in general.

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Offline AK48Topic starter
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« Reply #18 on: October 30, 2018, 05:46:01 am »
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i think the oxide on the surface i just a deposit because when i look on the slice , the colour is white shining



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Offline GoldDigger1950
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« Reply #19 on: October 30, 2018, 06:05:33 am »
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Look into finding a piece of unglazed ceramic tile and do a streak test to see what the composition is. Use Google to see the results for different metals. In an amalgam, which bronze is, all components will leave different streaks on the ceramic. Or, if you can afford it, have a gas chromatograph test done. That will break down the elemental compounds quite definitively.

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It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.
Let's Talk Treasure!

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