[a / b / c / d / e / f / g / gif / h / hr / k / m / o / p / r / s / t / u / v / vg / vm / vmg / vr / vrpg / vst / w / wg] [i / ic] [r9k / s4s / vip / qa] [cm / hm / lgbt / y] [3 / aco / adv / an / bant / biz / cgl / ck / co / diy / fa / fit / gd / hc / his / int / jp / lit / mlp / mu / n / news / out / po / pol / pw / qst / sci / soc / sp / tg / toy / trv / tv / vp / vt / wsg / wsr / x / xs] [Settings] [Search] [Mobile] [Home]
Settings Mobile Home
/diy/ - Do It Yourself

4chan Pass users can bypass this verification. [Learn More] [Login]
  • Please read the Rules and FAQ before posting.

08/21/20New boards added: /vrpg/, /vmg/, /vst/ and /vm/
05/04/17New trial board added: /bant/ - International/Random
10/04/16New board for 4chan Pass users: /vip/ - Very Important Posts
[Hide] [Show All]

[Advertise on 4chan]

File: IMG_3274.jpg (307 KB, 1237x1039)
307 KB
307 KB JPG
Hello, I have a sample of metal that I can’t identify.
I’m thinking it’s some alloy or something, since it doesn’t match bismuth or other metals.

It is very brittle and non-ductile, files and sandpaper easily expose its shiny surface under the orangish yellow sheen on the surface so it isn’t tough.

It is not ferromagnetic or responsive to magnets.

On the fragments with the exposed interior, it makes sharp edges and has a dull lustre

Can anyone identify this metal?
Put it in water and tell us what happens
Weigh it
Then measure its water displacement
Then we can narrow it down by density
If you have a multimeter laying around, tell us its resistance
If it was magnesium or sodium or the other alkali series metals then it would’ve just combusted upon touching water vapour in the air when I exposed its surface, pretty sure that this isn’t a reactive alkali metal.
Measuring resistance sounds alright, I’ll try that out.
As for displacement I don’t have a graduated cylinder to be precise with.

but I’ll go use the kitchen scale to weigh it too provided that the batteries aren’t dead
Kitchen scale doesn’t give a reading since the metal pieces are too light, a Canadian quarter reads 4 grams and both pieces are smaller than the quarter

Multimeter on 200 ohm setting reads 0.08 - 0.07 +- 2.5% + 5 which I assume to be 1.6-1.4 ohm respectively
fool's gold
File: Pyrite_huaron_octaedre.jpg (245 KB, 1280x852)
245 KB
245 KB JPG
Looks like pyrite at first glance. Will smell foul and turn to iron if you melt it. You can try heating it up bits of it with a torch and if it smells like rotten eggs then you know it's pyrite.
does it react to acid?
File: siliconmetal.jpg (162 KB, 1024x540)
162 KB
162 KB JPG
Silicon metal, maybe

Not sure if it can get orange-y or not
Shit is that what that stuff was? When I was little we had a gravel driveway and my parents would get a white "slag" put on it by the ton when it started to get muddy and it would have chunks of silvery brittle rocks occasionally mixed in.
Yep, I have a bucket of it that I picked up around the railroad track here
Like >>2811089 says it's possible that it's a sulfide mineral like pyrite and not a metal. Sulfides are soft, brittle, shiny, reactive with air, and semiconductive.

[Advertise on 4chan]

Delete Post: [File Only] Style:
[Disable Mobile View / Use Desktop Site]

[Enable Mobile View / Use Mobile Site]

All trademarks and copyrights on this page are owned by their respective parties. Images uploaded are the responsibility of the Poster. Comments are owned by the Poster.