New Members sacchers Posted September 19, 2018 New Members Share Posted September 19, 2018 Hi guys, fossil newbie here. I found this stones in the dolomites (3000m over sea level), really close to an almost extinguished glacier. They looks like broken shells on the stone. The one on the right (in the pic) looks like a coral. Do you think they are fossils? Many thanks in advance! Link to comment Share on other sites More sharing options...
New Members sacchers Posted September 19, 2018 Author New Members Share Posted September 19, 2018 here is another example of them into the wild Link to comment Share on other sites More sharing options...
ynot Posted September 19, 2018 Share Posted September 19, 2018 Welcome to TFF! Sorry, but these are not fossils. What You found are crystals. It looks like some quartz and mostly calcite. Nice mineral specimens. 3 Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted September 19, 2018 Share Posted September 19, 2018 Nice calcite crystals. Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
fifbrindacier Posted September 19, 2018 Share Posted September 19, 2018 Well, i'm not specialist, but i think it is a particular way of crystalization of Gypsum, in french we call it : Rose des Sables (Sands Rose). "On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry) "We only well see with the heart, the essential is invisible for the eyes." In memory of Doren Link to comment Share on other sites More sharing options...
ynot Posted September 19, 2018 Share Posted September 19, 2018 11 minutes ago, fifbrindacier said: Well, i'm not specialist, but i think it is a particular way of crystalization of Gypsum, in french we call it : Rose des Sables (Sands Rose). Wrong environment for gypsum. In US we call the gypsum crystals "desert roses". Calcite has over 120 crystal habits (shapes) it can form. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
sTamprockcoin Posted September 19, 2018 Share Posted September 19, 2018 Evaluate the "bladed" forms for characteristics of siderite. I can't quite tell the angles, edges, & any curvature of the faces. “Beautiful is what we see. More beautiful is what we understand. Most beautiful is what we do not comprehend.” N. Steno Link to comment Share on other sites More sharing options...
ynot Posted September 19, 2018 Share Posted September 19, 2018 7 minutes ago, sTamprockcoin said: Evaluate the "bladed" forms for characteristics of siderite. I can't quite tell the angles, edges, & any curvature of the faces. Siderite is an iron mineral and has a dark gray to silvery color. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
fifbrindacier Posted September 19, 2018 Share Posted September 19, 2018 22 minutes ago, sTamprockcoin said: Evaluate the "bladed" forms for characteristics of siderite. I can't quite tell the angles, edges, & any curvature of the faces. 13 minutes ago, ynot said: Siderite is an iron mineral and has a dark gray to silvery color. I also thought about this, but the color is wrong. "On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry) "We only well see with the heart, the essential is invisible for the eyes." In memory of Doren Link to comment Share on other sites More sharing options...
fifbrindacier Posted September 19, 2018 Share Posted September 19, 2018 37 minutes ago, ynot said: Wrong environment for gypsum. In US we call the gypsum crystals "desert roses". Calcite has over 120 crystal habits (shapes) it can form. I knew calcite could have the look of Diamonds, grape, hedgehog's spines, dog's teeth, but not that one. "On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry) "We only well see with the heart, the essential is invisible for the eyes." In memory of Doren Link to comment Share on other sites More sharing options...
FranzBernhard Posted September 19, 2018 Share Posted September 19, 2018 Possibly dolomite crystals in the dolomites? Take one of the plates and put a few drops of vinegar on it - what happens? Franz Bernhard Link to comment Share on other sites More sharing options...
Bronzviking Posted September 19, 2018 Share Posted September 19, 2018 Welcome to the forum from Sunny Florida! Closer photos of each with help us see the crystal structure. The bottom one sure resembled desert rose but I'm not familiar with your area and @ynot said no gypsum there. Calcite-Dolomite is a good possibility. (see below) Link to comment Share on other sites More sharing options...
Ludwigia Posted September 19, 2018 Share Posted September 19, 2018 They look like calcite blade fossils to me as well. Perhaps also pseudomorphosed to dolomite. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
New Members sacchers Posted September 20, 2018 Author New Members Share Posted September 20, 2018 thank you guys for your replies! I'll do the vinegar test and more detailed pics when I'll be at home. Link to comment Share on other sites More sharing options...
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