Parmcat Posted August 7, 2025 Report Share Posted August 7, 2025 I'm not even sure it's a marble. In a lot I bought, there were 3 "marbles" like this. Possible a contemporary marble, but maybe an agate if some sort. 1 Link to comment Share on other sites More sharing options...
duotone Posted August 7, 2025 Report Share Posted August 7, 2025 Agree that it's a natural stone sphere, not a marble. Looks like Tiger's Eye. 1 1 Link to comment Share on other sites More sharing options...
Meep Posted August 7, 2025 Report Share Posted August 7, 2025 It's a banded iron formation (BIF) stone sphere. Tiger's eye would only have yellow bands that are chatoyant. 2 1 Link to comment Share on other sites More sharing options...
Alan Posted August 7, 2025 Report Share Posted August 7, 2025 (Unfortunately, I have chosen to remove this content due to unchecked behaviors by others on this board. My apologies to those who will not benefit from it in the future.) 2 Link to comment Share on other sites More sharing options...
akroorka Posted August 8, 2025 Report Share Posted August 8, 2025 This one would have been a good contender in the "Oxblood August" post. When holding these mineral spheres/marbles you can just feel the coldness in hand. (Spheres are any round thing over 2 inches) Glass warms up quickly--mineral spheres do not. Just an observation on my part. Marble—On!! Link to comment Share on other sites More sharing options...
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