Greetings. I found this about 40 years ago on a sandbar in the Cache La Poudre River outside Greeley, Colorado. There has been much speculation as to what it may be but no serious investigation. Any ideas ? Thanks for all suggestions.
Mystery Rock or Mineral / Please Help Identify
- Thread starter willypjr
- Start date
Plug N Play
Bronze Member
- Aug 23, 2014
- 1,315
- 3,573
- Detector(s) used
- De Havilland Canada DHC-7-102 Dash 7 - Fugro
- Primary Interest:
- All Treasure Hunting
botryoidal agate
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