New Members Miss Manners Posted September 11, 2023 New Members Share Posted September 11, 2023 Hey, would anyone know what this rock is? I have six pieces, this being the smallest at 5x8cm. Very heavy, bright red in places but interested in the age and identifying the type of rock/fossils contained. This was found in a mud conglomerate with pegmatite (see photos) found Front Range Wyoming. any assistance would be appreciated. Cheers, M. Link to comment Share on other sites More sharing options...
DPS Ammonite Posted September 11, 2023 Share Posted September 11, 2023 (edited) First three are porphyries with zoned crystals. The last two are silica rich pegmatites with muscovite (M), quartz (A) and feldspar (F). Edited September 11, 2023 by DPS Ammonite My goal is to leave no stone or fossil unturned. See my Arizona Paleontology Guide link The best single resource for Arizona paleontology anywhere. Link to comment Share on other sites More sharing options...
Fossildude19 Posted September 11, 2023 Share Posted September 11, 2023 Moved to ROCKS AND MINERALS. Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 IPFOTM -- MAY - 2024 _________________________________________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
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