Interesting Horton (Reply 42), If the st...

Interesting Horton (Reply 42),
If the strongest magnetic pull is towards the center of the disk that might explain the larger chunks of dark material there. These chunks at the center and lower right of Horton's image might be hematite, magnetite and/or other ferro-magnesium minerals and silicates. i wonder where the strongest magnetism is on the magnetic substrate...

The feature that has me perplexed is the linear feature/object in the lower right quadrant of the image. What the heck is that thing and why does it appear to be magnetic? Is it an eroded vein of some magneti mineral or something more unusual? Why is one end of it blurry...because it's closer to the camera and longer than it would appear?