mihailovici179 3 Posted January 23, 2012 Please help me to identify this rock. I hope these pictures will help you.I think this part is calcite (FOV 8 mm): Share this post Link to post Share on other sites
mihailovici179 3 Posted January 23, 2012 In quartz i see some inclusions :(fov 8 mm)(FOV 2,5 mm) Share this post Link to post Share on other sites
mihailovici179 3 Posted January 30, 2012 Can anyone tell me what is the blue mineral?Thank youMihail Share this post Link to post Share on other sites
Goldfinger 43 Posted January 30, 2012 i would say that's Kyanite... Nice specimen.http://www.mindat.org/show.php?id=2303&ld=1#themapSteve Share this post Link to post Share on other sites
mihailovici179 3 Posted January 30, 2012 Thank you Steve . You are the best .Best Regards Mihail Share this post Link to post Share on other sites
mihailovici179 3 Posted February 10, 2012 Please helm me to identify this:Hardness: 5 -5.5Streak: brownThank you Share this post Link to post Share on other sites
kovage 0 Posted February 10, 2012 I am not good at gem/rock identification but ill give my guess it looks like Magnetite to me. http://en.wikipedia.org/wiki/Magnetite Share this post Link to post Share on other sites
mihailovici179 3 Posted February 10, 2012 Thanks Kovage, but this sample is not magnetic, so, I dont think is magnetite.Mihail Share this post Link to post Share on other sites
Au Seeker 3,050 Posted February 11, 2012 This chart for metallic minerals may help with IDing your specimen, you can click on the mineral name after choosing a possible mineral which will take to the page for that mineral with a lot of info and pictures to help decide if it is the correct mineral.There are only about 6 that fit your streak and hardness. http://www.webminera..._hardness.shtmlIf it's not metallic, here the list of charts for other types of minerals.http://www.webmineral.com/determin.shtmlSkip Share this post Link to post Share on other sites
mihailovici179 3 Posted February 11, 2012 Please helm me to identify this:Hardness: 5 -5.5Streak: brownThank you In fact, harness is under 3-3.5. Sorry for my fault. Share this post Link to post Share on other sites
Goldfinger 43 Posted February 11, 2012 Mihail-I wonder if that could be sphalerite? It's a zinc mineral. I used to have a really nice specimen that came from the Elmwood mine in Tennessee and it looked something like that you have. It's hard to judge the color of that specimen since they can all show up differently on the moniters. What is the actual color of that specimen and does it give a brown streak or a brownish red streak? That can make all the difference in the world.Steve Share this post Link to post Share on other sites
mihailovici179 3 Posted February 11, 2012 Thank you Steve , I think is sphalerite, too. I though is cassiterite, but I was wrong, because is not so hard. The streak is brown so I think you`re right again, like usual .Mihail Share this post Link to post Share on other sites
Goldfinger 43 Posted February 11, 2012 Mihail -I'm not a geologist and I'm not always right. :twocents: Just a plain old rockhound.. I try and do my best with the pictures shown and whatever details are given. Some of these rocks are unrecognizable to me... Reno Chris has more knowledge then I ever will and wish he could help on those...Steve Share this post Link to post Share on other sites
mihailovici179 3 Posted February 11, 2012 Ok,Steve Thanks againMihail Share this post Link to post Share on other sites
Red_desert 134 Posted February 11, 2012 Your first 2 rock photos look a lot like stones which got shattered in a volcanic blast, then filled in with some kind of cryptocrystalline quartz. Share this post Link to post Share on other sites
mihailovici179 3 Posted March 25, 2012 Hey guys.I think these crystals are aquamarine. Am I wrong?And pyrite???Thank you? Share this post Link to post Share on other sites
kovage 0 Posted March 25, 2012 Hi Mihai iam not sure about the first pics but iam sure the last is pyrite.http://www.spiritrockshop.com/images/pyrite_sun1.jpg Mitko Share this post Link to post Share on other sites
mihailovici179 3 Posted March 25, 2012 Thank you Kovage. Share this post Link to post Share on other sites
Johnno 64 Posted March 25, 2012 G'Day MilhailI think the first images are calcite, clear and blue and the last one is definitely pyrite Share this post Link to post Share on other sites
Goldfinger 43 Posted March 26, 2012 Mihail-Not sure about the first one but the shape of the crystal on the second photo makes me think its aquamarine. Can do the simple vinegar test to check for calcite. Calcite will slowly start to bubble upon contact. Aquamarine will not. Let me know.Nice pyrite sun.... Steve Share this post Link to post Share on other sites
mihailovici179 3 Posted March 26, 2012 I`ve used vinegar and .... no bubbles; so, I think is aquamarine. Thanks again.Today I`ve found this rock, limestone, what suppose to be the grey part? Look like a bone, but I don`t think so :hmmmmm:.Thanks again Share this post Link to post Share on other sites
Goldfinger 43 Posted March 27, 2012 Honestly don't know. It does resemble something but this is a G rated forum so I'm not going there. :hahaha: Is there some history of fossils being found in that area? If not, I would say it isn't.Steve Share this post Link to post Share on other sites
mihailovici179 3 Posted March 27, 2012 I did some tests of strength and visual, so I concluded that it is chert . I`ve scratched my finger in a piece of this chert, it is very sharp. Mihail Share this post Link to post Share on other sites
mihailovici179 3 Posted March 31, 2012 Hey guys. I need help with ID of some rocks that I found in the same place with kyanite. I guess what these are but I want to know for sure. 1. The little red spherical crystal in granite??2. Metamorphic rock with some quartz?3. Dacite????a little closer: Share this post Link to post Share on other sites
mihailovici179 3 Posted March 31, 2012 4. ??5. granite...6. Andezite???? Share this post Link to post Share on other sites
