« previous next »

Print

Pages: [1] Go Down

What kind of metal in this Alum Shale?

1 Replies
720 Views

enanthate (OP)

First timers
1
Activity:
0%
Naked Science Forum Newbie

What kind of metal in this Alum Shale?

« on: 13/09/2018 08:09:27 »

Hi,

Found this piece at an alum shale dig site in downtown Oslo. I noticed these tiny nuggets of metal in the shale. Any idea what kind of metal it is?

1.jpg (257.5 kB . 1210x908 - viewed 820 times)

2.jpg (283.14 kB . 1210x908 - viewed 802 times)

Logged

Bass

Naked Science Forum King!
1374
Activity:
0.5%
Thanked: 15 times

Re: What kind of metal in this Alum Shale?

« Reply #1 on: 16/09/2018 00:39:50 »

Pyrite, or Fool's Gold. The cubic form is the real give-a-way. Black shales like this are commonly deposited in anoxic conditions, making iron sulfides more likely to form than iron oxides.

Logged

Old enough to have grandsons
Slow enough to study rocks
Thirsty enough to build a pub

The following users thanked this post: enanthate

Print

Pages: [1] Go Up

« previous next »

Tags:

Similar topics (5)

	Can you mix molten metal and molten salt? Started by ...lets split up...Board Chemistry	Replies: 2 Views: 4181	13/10/2010 11:24:41 by ...lets split up...
	Charged metal plate blocks/absorbs gamma radiation bette then a uncharged plate? Started by McKayBoard Physics, Astronomy & Cosmology	Replies: 6 Views: 4170	06/09/2014 21:07:17 by alancalverd
	WHAT KIND OF PLANT TORTURE IS MY TROPICAL PLANT EXPERIENCING ? Started by Karen W.Board Plant Sciences, Zoology & Evolution	Replies: 24 Views: 10854	26/07/2007 12:16:25 by dentstudent
	Why are "gourmet" foods kind of gross? Started by cheryl jBoard General Science	Replies: 9 Views: 6406	18/03/2018 23:23:13 by PmbPhy
	Induction cooking, and a bare-foot lady holding a metal spoon? Started by veekBoard Physics, Astronomy & Cosmology	Replies: 1 Views: 4753	07/11/2010 15:58:04 by wolfekeeper

There was an error while thanking

Thanking...