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Thread: Quartz

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  1. #31
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    Love Gold

    Oct 2012
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    Quote Originally Posted by arizau View Post
    FYI If you decide you want to slab it some retirement centers have lapidary equipment/diamond saws and may be willing to help you out.
    Thanks, I did not know that.


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  2. #32

    Mar 2017
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    Beautiful!

  3. #33
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    Love Gold

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    Quote Originally Posted by oidium45 View Post
    Beautiful!
    Thank you, I thought so.


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  4. #34
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    Hardrock prospector

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    Quote Originally Posted by arizau View Post
    FYI If you decide you want to slab it some retirement centers have lapidary equipment/diamond saws and may be willing to help you out.
    Good idea as some towns retirement centers have them. The cost may be as little as $40.00 - $70.00 for so many hours that you can use in a month to do cutting and polishing if you like. First try to find the sweet spots in the rock if you can. The slabs should look real cool and should sell for more then the louse gold will. Keep us posted.

  5. #35
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    May 2014
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    Specific gravity tests will also give you some indication of about how much hidden gold the stone contains. Here is a general idea as to how it is done. Quick Test Method for Determining Specific Gravity of Mineral Specimens. SG of quartz is about 2.6 and pure gold is 19.32.

    Good luck
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    If it can't be grown, it must be mined!

  6. #36
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    Love Gold

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    Quote Originally Posted by arizau View Post
    Specific gravity tests will also give you some indication of about how much hidden gold the stone contains. Here is a general idea as to how it is done. Quick Test Method for Determining Specific Gravity of Mineral Specimens. SG of quartz is about 2.6 and pure gold is 19.32.

    Good luck
    I don't have a scale that will weigh a 60+ pound rock


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  7. #37
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    If the "Miners" where using explosives they may not have broken up all the ore rock to be able to see all the values. You can take the time if it is safe to look inside the rocks a little more. Just an idea as we out here have no idea what you may be looking at.

  8. #38
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    Quote Originally Posted by OregonGold76 View Post
    I don't have a scale that will weigh a 60+ pound rock
    A better bathroom scale will kinda work.

  9. #39
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    Love Gold

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    I'll let y'all know when I figure something out.


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  10. #40
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    Hardrock prospector

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    Sweet spots.

    Quote Originally Posted by OregonGold76 View Post
    I'll let y'all know when I figure something out.
    Will not cost anything to ask for the use at your local towns retirement center for a better scale if you like to weigh the rock.
    You still have to figure where the sweet spots are before slabbing up the rock. Maybe a diamond hole saw can be used however the center drill may wreck the sweet spot. If a magnetic base diamond hole saw machine is used then there is no center drill bit. Some rental centers will rent these out to use on the known sweet spots. Then just diamond blade slab saw the rest of the rock or break up if the rest of the sweet spots are small.
    Last edited by Assembler; Oct 11, 2017 at 10:43 PM. Reason: oops

  11. #41
    us
    May 2014
    AZ
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    I think this will work.......You can determine the volume of the stone in a bucket of water. Partially fill a bucket with a known quantity of water then fully submerge the stone and mark the water level it rises to. Take the stone out and fill the bucket to that line then measure all of that water (or just measure what you add to fill to the line). The difference between the two quantities of water is the volume of the stone. Now that you know the volume you can figure out what it should weigh if it were all quartz and compare that figure to what it actually weighs. If the weight is greater than the "calculated/estimated quartz weight by volume" then at least some of that is probably from hidden gold.
    Last edited by arizau; Oct 11, 2017 at 10:57 PM.
    Bejay likes this.
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  12. #42
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    Quote Originally Posted by arizau View Post
    I think this will work.......You can determine the volume of the stone in a bucket of water. Partially fill a bucket with a known quantity of water then fully submerge the stone and mark the water level it rises to. Take the stone out and fill the bucket to that line then measure all of that water (or just measure what you add to fill to the line). The difference between the two quantities of water is the volume. Now that you know the volume you can figure out what it would weigh as quartz and compare that figure to what it actually weighs. If it is greater than the "calculated quartz weight by volume" then at least some of that is probably from hidden gold. You will end up with a fair "guesstimate".
    Yes and this will be better then any crude scale. Lets say the measurement says there is 1/2 oz. this could be spread out in very small pieces throughout the 60lb. rock compared to a few hot spots. Try to scan this as the rock gets smaller when cutting or breaking up the rock just re-scan with the metal detector. Maybe just slab away with the rock saw and re-scan with each slab taken off the rock. Check to see if the retirement center has a big enough rock saw first.
    Last edited by Assembler; Oct 12, 2017 at 12:43 AM. Reason: oops

  13. #43
    us
    Hardrock prospector

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    If OregonGold76 is lucky and there may be a few ozs. of values there. Then all the more reason to scan slab re-scan with the metal detectors. Maybe hole saw some of the hot spots and then drop in acid the core sample? Who know what is there as this can be part of the fun.

  14. #44
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    Love Gold

    Oct 2012
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    Just put me and the rock on the scale

    Rock- 87 pounds
    Me- Not going to talk about it


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  15. #45
    us
    Hardrock prospector

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    Quote Originally Posted by OregonGold76 View Post
    Just put me and the rock on the scale
    Rock- 87 pounds
    Me- Not going to talk about it
    Thanks for the update. No real reason for you to talk about it. You have got some ideas here from others posting.
    Do not see many rock saws that can vice grip a 87lb. rock. You may have to do some drilling to reduce the size of rock for a rock saw.
    The idea if slabbing any sweet zones is a better way to make it sell as "Jewelry rock" (More then the going price of gold) as well as a keepsake for the family. Thanks again for sharing.

 

 
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