Cfowler Posted April 2, 2018 Share Posted April 2, 2018 What is this? I found it at low tide in Lyme Regis (famous fossil hunting site in the UK). I have cleaned it up quite thoroughly. My assumption is that it has spent a long time in the sea. There are some Red rusty deposits in the cracks but overall it is a metallic dark grey color with a slight purple tone. It's very hard, able to scratch glass. Unfortunately, I do not have a magnet. Quote Link to comment Share on other sites More sharing options...
4meter Posted April 7, 2018 Share Posted April 7, 2018 Well, I will take a shot at it. Based on the photo alone, looks like quartz with Manganese coating. It's not an iron ore if it can scratch glass. See if the black can be rubbed or ground off & what color is under the blackish-purple coloration. Also, compare the unknown's "weight", as it feels in your hand, to a similar size piece of Quartz. If they "Weigh" the same, it points to the unknown being Quartz or a silica mineral. Let us know what you find out. Quote Link to comment Share on other sites More sharing options...
Greg L Posted May 21, 2018 Share Posted May 21, 2018 There is a website EOLITHS you should check out also in UK with similar stuff Quote Link to comment Share on other sites More sharing options...
Au Seeker Posted May 22, 2018 Share Posted May 22, 2018 3 hours ago, Greg L said: There is a website EOLITHS you should check out also in UK with similar stuff Maybe you should post a link to that website, I tried to find it with no luck! Quote Link to comment Share on other sites More sharing options...
Greg L Posted May 22, 2018 Share Posted May 22, 2018 http://Eoliths.blogspot.com 1 Quote Link to comment Share on other sites More sharing options...
Martin.exeter Posted August 11, 2018 Share Posted August 11, 2018 (edited) Hi, not sure if you still seek what that is. I found it too in Lime Regis recently and all points to this being Limonite - iron ore Edited August 11, 2018 by Martin.exeter Quote Link to comment Share on other sites More sharing options...
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