Material mine example.. it is metal ore...nickvc said:The material this is from?
It does, but I'm having more than a little trouble with the idea that anyone can extract enough from ore to provide the bold display he has shown, thus my suggestion that it's iron.Lou said:Looks like platinum.
they are not magnetic but I know some iron minerals also not magnetic.Harold_V said:Butcher's comments are sound logic. The idea that an ore sample would yield the volume of precious metal required to yield such a powerful display isn't likely. I expect that platinum is not commonly found in abundance, so the sample would have to represent a huge amount of ore. Perhaps it is. Nothing has been mentioned in that regard.
While I am not a geologist, I am of the opinion that base metals (such as nickel) would accompany such a deposit, so unless they have been addressed, I can imagine iron contributing greatly to the color. Otherwise it wouldn't be in the red/orange zone, but more in the green zone.
I hope I can be proven wrong. I still say it's iron.
Harold
I Dont heat but it is wait 3 4 day for done.. today I add some and colur going more dark.. we will look.. And I will say everyone herelazersteve said:The color looks to be what I would see in dilute platinum solutions, concentrated iron solutions tend to be more orange yellow, and concentrated gold solutions that lean towards the red end of the spectrum are usually not so transparent (I can see the newspaper through his solution). When I dissolve 10-15 grams of Pt in 200 mL of AR I get a very dark blood red (think burgundy color) almost brown color that can not be seen through without a very strong light held directly up to the beaker.
Here's a snapshot of 18 grams of 95% Pt dissolved in a few hundred milliliters of AR:
My guess, and it's just a guess, is that it is a dilute mix of several metals. Stannous and DMG tests can narrow the field of metals quickly.
Platinum would require some heating to get into the solution with AR. Platinum in ore is also found with it's sister metals and these tend to make the platinum very hard/slow to dissolve. I would be curious to hear how much heat was applied and for how long to get the color seen.
Steve
qst42know said:You may have found some cobalt ore.
http://www.google.com/imgres?imgurl=http://en.wikivisual.com/images/8/80/Cobalt_OreUSGOV.jpg&imgrefurl=http://en.wikivisual.com/index.php/Cobalt&usg=__3XjBOKnrfv3sk3RXMUENmN3aqrM=&h=450&w=600&sz=80&hl=en&start=22&zoom=1&um=1&itbs=1&tbnid=2c06MxDmPL_OpM:&tbnh=101&tbnw=135&prev=/images%3Fq%3Dcobalt%2Bore%26start%3D20%26um%3D1%26hl%3Den%26sa%3DN%26rlz%3D1T4ADBF_enUS241US242%26ndsp%3D20%26tbs%3Disch:1
Cobalt chloride is deep red.
http://www.hengsource.com/showproducts.asp?id=66
Cobalt nitrate is also quite red.
http://www.hengsource.com/showproducts.asp?id=68
Is there a quick test for cobalt?
I thought the color range of cobalt salts was interesting.
http://www.hengsource.com/products.asp?ClassID=36
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