Friendly Metal Detecting Forums   Coiltek electronics
List all sponsors

Go Back   Friendly Metal Detecting Forums > Metal Detecting > Research and Getting Permission

Reply
  
Thread Tools Display Modes
  #1  
Old 06-21-2017, 09:27 AM
Rodger d Rodger d is offline
New Member
 
Join Date: Jun 2017
Posts: 1
Default What is this

I found this in northern ND. It's a smooth black rock that has 3 layers, first layer is smooth black and brittle, second layer is a very soft, almost powder rust red substance, inner layer seems to be metallic. Magnet test was negative.
Attached Images
 
Reply With Quote


  #2  
Old 06-21-2017, 12:58 PM
JOE319 JOE319 is offline
Senior Member
 
Join Date: Dec 2015
Posts: 267
Default

Could be any one of a variety of iron ore...Only one variety is magnetic...Magnetite
Reply With Quote


  #3  
Old 06-23-2017, 10:44 PM
Tom_in_CA's Avatar
Tom_in_CA Tom_in_CA is offline
Elite Member
 
Join Date: Dec 2013
Posts: 5,810
Default

looks like a question for a lapidary forum.

Welcome to FMDF
Reply With Quote


1 members found this post helpful.
  #4  
Old 06-23-2017, 11:16 PM
metaladdict's Avatar
metaladdict metaladdict is offline
Elite Member
 
Join Date: Mar 2010
Location: Santa Rosa, Ca.
Posts: 7,724
Default

I can't see it.

__________________
Detectors. Garrett AT Pro,Ace 250.Minelab Sov Elite! Soon enough Minelab Equinox!!!!
They can have my metal detector when they pry it from my cold dead hands!!Arrrr! John 14:6.

Reply With Quote


Reply


Thread Tools
Display Modes

Forum Jump


All times are GMT -4. The time now is 09:59 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2017, vBulletin Solutions, Inc.