Chelsea Freeman Posted March 25 Share Posted March 25 Found hiking out in Westlake Village California Link to comment Share on other sites More sharing options...
Jim in Idaho Posted March 25 Share Posted March 25 Looks like pieces of a citrine quartz nodule. Jim Link to comment Share on other sites More sharing options...
Geologyhound Posted April 3 Share Posted April 3 Looks like vein agate (cryptocrystalline silicon dioxide). I suspect some of the coloration may be due to surface iron staining, but yellow coloration is fairly common in agate. 1 Link to comment Share on other sites More sharing options...
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