An Ongoing Debate
Welcome guest, is this your first visit?
Member
Discoveries
 
Results 1 to 9 of 9
Like Tree3Likes
  • 1 Post By StoneWhisper
  • 1 Post By mamabear
  • 1 Post By EricTheCat

Thread: An Ongoing Debate

« Prev Thread | Next Thread »
  1. #1
    us
    Apr 2010
    Annapolis Junction, Maryland
    789
    219 times
    Rocks, Minerals, Gems, Furs, Feathers, Mushrooms

    An Ongoing Debate

    For morte then 8 years I've been telling minerals and rock collectors of the ahrmfull effects to using salt on the minerals as well as placing the stoens in direct sun light for an extened leinght of time.. These last two years I've been doing an experiments on an Amethyst I've broken and left one in the sun while keeping one in the shard or shadows..

    The two years have past and I think it's time to show you what has happen to this once very dark amethyst..
    Click image for larger version. 

Name:	100_1556.JPG 
Views:	91 
Size:	78.1 KB 
ID:	677913
    Image Above: Mind you, Both of these are from the same Amethyst, Broken in two.

    While one braved the sunlight, hot days and cold winters.. the other (darken one) was inside out of harms way. Clearly one can see what happens when one leaves their collector in the sun for to long..

    So if you value your collection.. then take care of them by never leaving them in the sun light or cleaning them in a salted solution.
    EricTheCat likes this.

  2. #2
    us
    Feb 2008
    SE Missouri
    garage sale oldie
    3,071
    860 times
    TH'ing, fishing, reading, cooking
    nice test done. don't have any of my collection in the sun, but will remember this & pass it on. I wonder if sulpher can damage pieces, I do have a nice bright yellow chunk of sulpher in with other specs.
    StoneWhisper likes this.
    dancing in the fire!

  3. #3
    se
    Sep 2006
    Sweden
    White's V3, Minelab Explorer II & XP Deus.
    6,484
    2095 times
    Prospecting
    Here is my take on it, considering what I think I know to date.

    From what I know there are mainly three kinds of things which give a minerals colour.
    Inclusions (as in blue quartz) and trace impurities (as in Fe2+ in amethyst) and structural damage.
    (such as from irradiation in smokey quartz)

    Those with inclusions don't fade as far as I know.
    However those other two will vary with locality - where it was mined.
    Some amethyst is considered 'stable' while others are not.
    I've heard of Namibian amethyst fading, I think some amethyst from brazil does also fade. (as a couple examples)

    So if you don't know from where they are from - keep them out of sunlight as Jeep suggested.

    Thoughts?
    Geologists are gneiss, tuff, and a little wacke.

  4. #4
    us
    Apr 2010
    Annapolis Junction, Maryland
    789
    219 times
    Rocks, Minerals, Gems, Furs, Feathers, Mushrooms
    True, EU but these Stoens are from Brazil and according to "Rock & Gem" magazine.. artical "Faded Glory" this is a all to often occarance with stones left in the sun.. (desplaied in windows of shops)

    fyi.. R&G mag wanted me to write and artical about this.. but they placed to many restrictions for me to work with.. However I did complete the artical and I can send this to anyone interested.

  5. #5
    us
    Oct 2011
    Southern Minnesota
    471
    485 times
    All Types Of Treasure Hunting
    That is a very interesting experiment. I am surprised how vivid the result is. I wonder if agates, in particular Lake Superior agates, are affected by this. I have a few in a South window right now. I may need to find a new place for them.

    This is a great example of the effect of sunlight on minerals. Thanks for sharing the results.
    StoneWhisper likes this.

  6. #6
    se
    Sep 2006
    Sweden
    White's V3, Minelab Explorer II & XP Deus.
    6,484
    2095 times
    Prospecting
    Quote Originally Posted by OurJeepLife View Post
    True, EU but these Stoens are from Brazil and according to "Rock & Gem" magazine.. artical "Faded Glory" this is a all to often occarance with stones left in the sun.. (desplaied in windows of shops)

    fyi.. R&G mag wanted me to write and artical about this.. but they placed to many restrictions for me to work with.. However I did complete the artical and I can send this to anyone interested.
    Interesting Jeep, I had only heard of fading ammys from Brazil - not actually seen any pics.
    A shame to put restrictions when writing an article IMO.
    Geologists are gneiss, tuff, and a little wacke.

  7. #7
    us
    Apr 2010
    Annapolis Junction, Maryland
    789
    219 times
    Rocks, Minerals, Gems, Furs, Feathers, Mushrooms
    EU.. it's hard to sum up an artical in less then 30 words.. for cleaning or cleansing ones stones.. Perhapes you can (or anyone else for that matter) can create a group effort and send soemthing to the editors at R&G mag..

  8. #8
    se
    Sep 2006
    Sweden
    White's V3, Minelab Explorer II & XP Deus.
    6,484
    2095 times
    Prospecting
    Less then 30 words? Ouch! You can barely touch the tip of the iceberg with that few words!
    Geologists are gneiss, tuff, and a little wacke.

  9. #9
    us
    Apr 2010
    Annapolis Junction, Maryland
    789
    219 times
    Rocks, Minerals, Gems, Furs, Feathers, Mushrooms
    Quote Originally Posted by Eu_citzen View Post
    Less then 30 words? Ouch! You can barely touch the tip of the iceberg with that few words!
    Nailed It..

 

 

Sponsored Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Similar Threads

  1. Ongoing Results - 4/16 - 5/5
    By gotgot in forum Coin Roll Hunting
    Replies: 2
    Last Post: May 06, 2009, 08:06 PM
  2. Ongoing Results - 3/18 - 4/2
    By gotgot in forum Coin Roll Hunting
    Replies: 1
    Last Post: Apr 04, 2009, 10:11 AM
  3. Ongoing Results - 2/28 - 3/17
    By gotgot in forum Coin Roll Hunting
    Replies: 2
    Last Post: Mar 22, 2009, 04:25 PM
  4. Ongoing Results - 2/13 - 2/27
    By gotgot in forum Coin Roll Hunting
    Replies: 6
    Last Post: Mar 09, 2009, 09:13 PM
  5. Ongoing Results - 2/1 - 2/12
    By gotgot in forum Coin Roll Hunting
    Replies: 6
    Last Post: Feb 13, 2009, 07:25 AM

Search tags for this page

do lake superior agates fade in sunlight

Click on a term to search for related topics.
Powered by vBadvanced CMPS v4.3.0