What's new

Chert, perhaps?

Durandus

Tenderfoot
Joined
Jun 13, 2012
Messages
2
Reaction score
0
Golden Thread
0
Primary Interest:
All Treasure Hunting
Hi all.

I've been finding a few of these kinds of stones in rockpile, Central MN, and find them to be fascinating; though I really have little idea what they are. They have very fine granules, many with red, green, yellow, brown colors and ringed, metal-like inclusions. Some, in fact, are magnetic...also, very heavy for their size (about that of a softball). Here is a selection of the types I am finding. Any observations that would help me understand these specimens' nature and origins would be great! The last two are basketball sized and very glassy, heavy and beautiful.

DSC04296.webp
DSC04373.webp
DSC04262.webp
DSC04259.webp
DSC04139.webp
DSC04151.webp
 

Users who are viewing this thread

Back
Top Bottom