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Viktorian
Joined: 25 Sep 2011
Posts: 10
Location: Caransebes
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 Posted: Sep 25, 2011 01:53 Post subject: Blue-green rock |
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Hi
These is the first post from me!
I was in a talc quarry(in Marga-Romania), and found a lot of these blue green rock. I dont know what could be!
it looks good cut and polished!
Tahnks all!
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Maxilos
Joined: 02 Nov 2010
Posts: 191
Location: Boskoop, The Netherlands
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| Posted: Sep 25, 2011 08:32 Post subject: Re: blue-green rock |
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Welcome,
One thing I could say is that it probably holds copper.
Mark
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"Still looking for the philosopher's stone" => Dutch proverb |
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John S. White
Site Admin
Joined: 04 Sep 2006
Posts: 1297
Location: Stewartstown, Pennsylvania, USA
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| Posted: Sep 25, 2011 10:20 Post subject: Re: Blue-green rock |
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It may well contain copper but there are many similar green minerals that derive their color from iron, some from vanadium or chrome and some, even, from the radioactive decay of galena, the amazonite variety of microcline, if I am not mistaken.
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John S. White
aka Rondinaire |
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Pete Modreski
Site Admin
Joined: 30 Jul 2007
Posts: 709
Location: Denver, Colorado
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| Posted: Sep 25, 2011 11:40 Post subject: Re: Blue-green rock |
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And also to keep in mind, talc can itself be colored green or blue-green, and there are varieties of other mica-related minerals of these colors too--green muscovite (var. fuchsite), phengite, celadonite, the chlorite family minerals, and more. Also fine-grained kyanite can be blue-green! So many minerals of similar color exist... Here is a photo of green, foliated pure talc, from Vermont.
Best wishes, Pete
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Talc
Argonaut mine, Ludlow, Windsor County, Vermont, USA
7 x 5 cm
Foliated green talc, Vermont |
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4919
Location: Barcelona
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| Posted: Sep 25, 2011 11:40 Post subject: Re: Blue-green rock |
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Hi Viktorian, welcome to FMF
As you can see is not enough information to give to you a right answer. Please read carefully:
"Asking: "What is this? / Where is it from?" -> https://www.mineral-forum.com/message-board/viewtopic.php?t=1936
and try to follow the suggestions you will find there.
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Viktorian
Joined: 25 Sep 2011
Posts: 10
Location: Caransebes
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| Posted: Sep 25, 2011 14:45 Post subject: Re: Blue-green rock |
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Well, there I found talc,but I found another rock which I think is dolomite(powder make reaction with HCl acid)
So there in the talc quarry,I found all these varieties of rocks: talc, dolomite? and blue-green rock(no make reaction with HCl acid)
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tomfan
Joined: 15 Jul 2012
Posts: 3
Location: xiamen
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| Posted: Jul 15, 2012 02:01 Post subject: Re: Blue-green rock |
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it is beautiful blue-green stone, Try to polish it and also let me know the hardness based on your expereince then I may give you my idea for I can see many same kind of stone in China.
Tom Fan from Xiamen
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jade,soapstone,nehprite,chlorite,pyrophyllite,agate, chalcedony, any stone rough good enough for carving. |
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Justin Hickok
Joined: 28 Sep 2017
Posts: 66
Location: Strasburg
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| Posted: Aug 13, 2018 21:33 Post subject: Re: Blue-green rock |
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That is an awesome color. And I concur with John S. White.
Im sifting through some nice amazonite this week out here in Colorado with the same hue.
Im not saying it's amazonite but the same color.
Its my favorite color. Turquoise.
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