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Thread: Got A Rock you Want Identified? Post it here! gimme a good picture or 3 or 4!

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  1. #2941
    se
    Sep 2006
    Sweden
    White's V3, Minelab Explorer II & XP Deus.
    6,250
    1888 times
    Prospecting
    Quote Originally Posted by Boarteats View Post
    Not sure what this rock is. Seems to be mostly manganese ...well, at least its purple when crushed to powder. Really hard to break even after roasting. Has some iron oxides. Had some pyrite before roasting.

    Attachment 1609225
    Well, it could be something related to the Heterosite & Purpurite series of minerals. They form as iron or manganese are oxidized from granites, if memory serves.
    There's also the odd chance it could be a silver-mineral; Pyrargyrite.

    That's the best I can do.
    Boarteats likes this.
    Geologists are gneiss, tuff, and a little wacke.

  2. #2942

    Jul 2018
    2
    All Types Of Treasure Hunting
    I found this in a lake putting in my dock in northwest Wisconsin. It is 9 1/2"W x 12"H x 8" thick.
    Was buried in sand except an inch showing.

  3. #2943

    Jul 2018
    2
    All Types Of Treasure Hunting
    I found this in a lake putting in my dock in northwest Wisconsin. It is 9 1/2"W x 12"H x 8" thick.
    Was buried in sand except an inch showing.Click image for larger version. 

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  4. #2944
    us
    Mar 2018
    Near Baltimore
    49
    52 times
    Prospecting
    Quote Originally Posted by Eu_citzen View Post
    Well, it could be something related to the Heterosite & Purpurite series of minerals. They form as iron or manganese are oxidized from granites, if memory serves.
    There's also the odd chance it could be a silver-mineral; Pyrargyrite.

    That's the best I can do.
    If it stumps a geologist, I don't feel bad that I can't id it!

    I'm wondering if it could be manganite and/or pyrolusite with quartz and iron oxide.

    Not sure if it helps, but the area this rock is from also has an out cropping of gabbro ...Balitmore Gabbro Complex (or at least a couple big boulders sticking out of the ground). Region sits pretty much on the fall line between the piedmont plateau and coastal plain. Was an alluvial plain, I think. Also, might have a small bit of gold on it unless it's just pyrite that somehow survived roasting.
    Last edited by Boarteats; Jul 07, 2018 at 02:21 PM.

  5. #2945

    Jul 2018
    1
    All Types Of Treasure Hunting
    Hello. Iím new to the forums. My grandfather was a rock hound and he passed away last year. He left behind a lot of rocks and for the most part, I know what they are. This is a bolo tie slide that I just canít figure out what kind of stone it is. I was thinking some sort of jasper maybe? Thanks in advance for any help!Click image for larger version. 

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  6. #2946
    se
    Sep 2006
    Sweden
    White's V3, Minelab Explorer II & XP Deus.
    6,250
    1888 times
    Prospecting
    Quote Originally Posted by Rkay View Post
    I found this in a lake putting in my dock in northwest Wisconsin. It is 9 1/2"W x 12"H x 8" thick.
    Was buried in sand except an inch showing.Click image for larger version. 

Name:	20180706_145650.jpg 
Views:	31 
Size:	3.92 MB 
ID:	1609386
    Sandstone.
    Geologists are gneiss, tuff, and a little wacke.

  7. #2947
    se
    Sep 2006
    Sweden
    White's V3, Minelab Explorer II & XP Deus.
    6,250
    1888 times
    Prospecting
    Quote Originally Posted by Boarteats View Post
    If it stumps a geologist, I don't feel bad that I can't id it!

    I'm wondering if it could be manganite and/or pyrolusite with quartz and iron oxide.

    Not sure if it helps, but the area this rock is from also has an out cropping of gabbro ...Balitmore Gabbro Complex (or at least a couple big boulders sticking out of the ground). Region sits pretty much on the fall line between the piedmont plateau and coastal plain. Was an alluvial plain, I think. Also, might have a small bit of gold on it unless it's just pyrite that somehow survived roasting.
    It's the purple powder I based my guess on. Mind you, I can only guess. For any degree of real accuracy, it needs to be viewed in person.

    PS. I'm not a geologist... I'm a prospector.
    Geologists are gneiss, tuff, and a little wacke.

  8. #2948
    se
    Sep 2006
    Sweden
    White's V3, Minelab Explorer II & XP Deus.
    6,250
    1888 times
    Prospecting
    Quote Originally Posted by AmberAnnB View Post
    Hello. I’m new to the forums. My grandfather was a rock hound and he passed away last year. He left behind a lot of rocks and for the most part, I know what they are. This is a bolo tie slide that I just can’t figure out what kind of stone it is. I was thinking some sort of jasper maybe? Thanks in advance for any help!Click image for larger version. 

Name:	ACCCF6DC-4575-4181-BAEC-F363E247490B.jpeg 
Views:	20 
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ID:	1609585
    Might be enamel.
    Geologists are gneiss, tuff, and a little wacke.

  9. #2949

    Jul 2018
    1
    All Types Of Treasure Hunting
    My brother gave me this rock but didnít remember how he got it. I think it may be a chunk of petrified wood but Iím not sure. Any idea?
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  10. #2950
    se
    Sep 2006
    Sweden
    White's V3, Minelab Explorer II & XP Deus.
    6,250
    1888 times
    Prospecting
    Quote Originally Posted by Liss View Post
    My brother gave me this rock but didn’t remember how he got it. I think it may be a chunk of petrified wood but I’m not sure. Any idea?
    Jasper.
    Geologists are gneiss, tuff, and a little wacke.

  11. #2951
    us
    CEO

    Jul 2018
    ****offave
    4
    6 times
    All Types Of Treasure Hunting
    as I found something crazy it has nickel in it and it's lightly magnetic more in some spots than others and smells strange [ATTACH=CONFIG]1610333[/ATTACHClick image for larger version. 

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  12. #2952
    us
    CEO

    Jul 2018
    ****offave
    4
    6 times
    All Types Of Treasure Hunting
    Click image for larger version. 

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ID:	1610334

  13. #2953
    us
    CEO

    Jul 2018
    ****offave
    4
    6 times
    All Types Of Treasure Hunting
    Click image for larger version. 

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ID:	1610335

  14. #2954

    Jul 2018
    1
    All Types Of Treasure Hunting
    Click image for larger version. 

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    This is what I found in a lake in South Carolina, around 6 ft by 6 ft. What rock is it? Thanks a lot.

  15. #2955

    Jul 2018
    3
    2 times
    All Types Of Treasure Hunting
    Hi I found this interesting Little Rock while gardening on my property in Texas, itís very sparkly on one side of the rock any idea what type of rock it is?
    Click image for larger version. 

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