New Members Moder Jord Posted Friday at 07:41 PM New Members Share Posted Friday at 07:41 PM Found this unusual rock in NW Tasmania, Australia. Split it open and have no idea what it is. Can anyone identify it please? Link to comment Share on other sites More sharing options...
Fossildude19 Posted Friday at 07:55 PM Share Posted Friday at 07:55 PM Move to ROCKS AND MINERALS. Not a fossil. 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...
New Members Moder Jord Posted Saturday at 03:47 AM Author New Members Share Posted Saturday at 03:47 AM Ok Link to comment Share on other sites More sharing options...
New Members Moder Jord Posted Saturday at 03:50 AM Author New Members Share Posted Saturday at 03:50 AM Found this unusual rock in NW Tasmania, Australia. Split it open and have no idea what it is. Can anyone identify it please? Link to comment Share on other sites More sharing options...
DPS Ammonite Posted Saturday at 04:52 AM Share Posted Saturday at 04:52 AM Not a geode since by definition they are hollow. Try scratching the white center of the broken rock with steel. What happens? Does the white area fizz in acid? Then try the tests on the outer grey layer. What happens? 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...
Ludwigia Posted Saturday at 07:57 AM Share Posted Saturday at 07:57 AM 3 hours ago, DPS Ammonite said: Not a geode since by definition they are hollow. This is not quite correct. Geodes can also be completely infilled, as is often the case with agate. These are often also called nodules. The hollow ones with crystals are also known as druses. Mindat has a good description. 1 Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
New Members Moder Jord Posted Sunday at 04:09 PM Author New Members Share Posted Sunday at 04:09 PM On 9/28/2024 at 5:57 PM, Ludwigia said: This is not quite correct. Geodes can also be completely infilled, as is often the case with agate. These are often also called nodules. The hollow ones with crystals are also known as druses. Mindat has a good description. Thank you Link to comment Share on other sites More sharing options...
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