Jump to content

Search the Community

Showing results for tags 'cleaning and selling'.



More search options

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • Metal Detecting & Gold Prospecting Forums
    • Detector Prospector Forum
    • Metal Detecting For Coins & Relics
    • Metal Detecting For Jewelry
    • Metal Detecting For Meteorites
    • Gold Panning, Sluicing, Dredging, Drywashing, Etc
    • Rocks, Minerals, Gems & Geology
    • Metal Detecting & Prospecting Classifieds
    • Metal Detector Advice & Comparisons
    • First Texas - Bounty Hunter, Fisher & Teknetics
    • Garrett Metal Detectors
    • Makro / Nokta Metal Detectors
    • Minelab Metal Detectors
    • Tesoro Metal Detectors
    • White's Metal Detectors
    • XP Metal Detectors

Categories

  • Catalogs & Brochures
  • Owners Manuals
  • Minelab CTX 3030 Programs
  • Spreadsheets

Calendars

  • Calendar

Group


AIM


MSN


Website URL


ICQ


Yahoo


Skype


Location:


Interests:


Gear Used:

Found 29 results

  1. Some nuggets are worth more than the gold content. http://www.bbc.com/news/uk-wales-south-east-wales-42081538 Would you take $200 for a 3 grammer? Mitchel
  2. AAA Gold for Sale Gold from Alaska, Arizona and Australia! https://fineart.ha.com/c/ecatalog.zx?saleNo=5324&ic5=CatalogHome-AucType-PrintedCatalogViewer-071515 Just a note: I can't get this site to work on Chrome but it did work on Edge. Good luck.
  3. I am down in the valley of AZ rite now for a family emergency what I need suggestions on is I have several 2.5 dollar gold pieces from the 1800s that I found while detecting a property I owned in Ohio I need to sell these gold coins so I can help my family out with this emergency can someone please tell me where to take these in AZ to sell them so I don't get ripped off as I do not know much about coins Thanks in advance for any and all suggestion
  4. Rock Tumblers?

    Hey everyone, I have always wanted to get a metal detector and spend a couple hours every week walking around the fields and beaches to see what I find, so I have been finding this place to be a great source of information. Something I have been wondering lately is what kind of rocks/gems people will commonly find? And do you take what you do find and put it in a rock tumbler to see how it really looks. I am sure that some of you must use a tumbler as you would inevitably get something out of it after cleaning all your finds. To any of you that do use rock tumblers, what ones do you use? I remember having a really cheap one years ago that I would use on the gravel in front of our house and it did not last very long so I assume I need to spend more than $30 if I want a good one! I might not be getting one right away but I do find a lot of cool rocks around so it is something I have been considering. Thanks in advance for all the tips! I took a look at both Lortone and Harbor Freight and I found some great rock tumblers but being the frugal guy I am I went looking for some deals. I did find some used rock tumblers on http://www.used.forsale/rock-tumbler and found the same tumbler for a lot cheaper and it was barely used. I figured I would pull the trigger on this one, then if I end up using it a lot I could spend more money next time. Thanks for the suggestions guys, happy hunting :)
  5. Read the full article by Dr. Tones at Treasure Talk Here is the accompanying video...
  6. I recently used the "after" picture in another thread, but while I was looking for the after picture I also found the "before" picture. The product I use is Ali Brite. I have no idea if it is available in the States but it is described as a "etching type acid". Be careful with the stuff, above all, don`t get it in your eyes, and if it comes in a plastic bottle, use a plastic container to soak your speci`s in. And you have got to be patient, I left these pieces in acid for several months. Anyway, this is the before and after. Dave http://www.supercheapauto.com.au/Product/Septone-Ali-Brite-Aluminium-Cleaner-1-Litre/1747
  7. Hi guys n gals.... well as I start accepting the fact that I'm going to be keeping Zeddie and selling my beloved GPX-5000, I have a quandry (peer pressure, being laughed at and being locked in the school lockers every day on the gold fields can be a very powerful thing ). Over the years, I've tried to sell coils individually on the forums and ebay and have been saddened with the lack of interest or having to sell them low ball. I've built up a HUGE coil (and extra goodies) collection on my GPX and am wondering what luck those of you who HAVE sold a detector on the classifieds have had with selling as a combo and not have to deal with the coil (and extra battery etc) selling separate or have you had more luck/made a better profit parting it out, selling a basic detector? I guess it depends on what your own tolerance is to spending the next 6 months flogging the coils off but do people buy GPX's really pay what all the extras we have are worth or have most of you just sold the package cheap to not have to deal with the dramas? It saddens me to sell it but alas, as both Jim and Chris say "a detector in the closet only finds dust". Jen
  8. I am looking for some advice, brands, ideas, etc on some equipment for cleaning some of the stuff I find. I am looking for a decent large magnifying glass on a stand that will let me use both hands to see items close up while cleaning them. Preferably with it's own lighting. I am looking for what folks use for quality picks with extremely fine points. I know (never clean your coins) is the mantra, but I am putting together a type set of the coins I have dug, and also albums of Indian head and newer cents, and since most are relatively worthless, I just want to purge them of all dirt and clean them up as best as possible for in the albums. any info is appreciated. Thanks, Rod
  9. Gold and mineral auction with lots of pretty nugs, could even be some from someone we know? I get catalogs from this auction company all the time and I thought this one would be of interest here, hope this link works its worth looking at; http://www.bonhams.com/auctions/24041/?utm_source=bonhams&utm_medium=email&utm_campaign=STS_Gold_24041&utm_content=link3
  10. That speci I posted the other day, I finally took it out of the acid and the good thing about the acid clean is the before photos were taken with a 150 power usb microscope and that`s the only reason you could see the gold. When you were holding that speci in your hand it was so hard to see the gold, but now that it`s cleaned you can see the gold no worries at all.. The SG says this piece has 2.254 grams gold. The after photos were taken with a unwanted camera a forum member gave me. Thanks very much Steve it`s a terrific camera. ◕‿◕ And goldEn, this is how your speci came out as well. Dave
  11. Hi Steve. That raisers another question. Just when is a "good" time to sell gold? Gold, unlike money in an interest bearing account or other investment just sits gathering dust. Nothing of a profit or loss made until sold. If it is gold found, detected or dredged, then all it owes really is the cost of time energy, effort & equipment used in its finding. The gold can sit for years just gathering dust. Nothing realised until turned in to cash & not much else can be done with it, cant eat it or drink it, except drooling over it So when is the "right" time to sell? That would come down to each individuals wants & needs relating to a cash injection at a time or certain times in there lives. If gold isnt your living, as it isnt mine, then I am just sitting on it for that rainy day or for that cash injection sometime in the future. Maybe in retirement....who knows. Others may be different. If you want a new car, or boat, new detector. Maybe cash the gold in & put that cash into another investment, property etc...something that is going to give you a more regular return than the gold just gathering dust waiting for that "right" time. Gold up....gold down....gold up....gold down. Haven't sold...haven't sold. Gold still just sitting there gathering dust....but sure is pretty to look at & the memories of each piece found..... I am sure that when you sold in 2003 you were happy, & I am sure you did something sensible with the money. We arent future tellers & know one really knows accurately what the gold price is going to do. How many times have we seen or heard that the price of gold is going to go through the roof. Usually the opposite happens. To me a good time to sell is when you need the money.....for what ever. You can always go out & find some more gold. That is the fun part of it. I am going out now for a quick swing in the cool of late afternoon here down under. Good luck out there JW
  12. Hi all Couple found with gpx5000. Couple grams of gold and came nice after the acid bath. GoldEN
  13. Ok. I got the individual tables posted so with all this information you should be able to identify both the type and weight of any rock you might find in a jewelry item. I got all this information from a gentleman who went by the name, 'Pawnbroker _Bob' on Tom Dankowski's site. Its been a long time, several years, since Pawnbroker _Bob has posted and I haven't been able to get a hold of him for permission to repost on this forum so I am going to link his Forum post here, along with all the table posts I've made so you can find this stuff in one place when you need it. I'll just tell you that its pretty cool to id and calculate your own gem stones, and speak with a little bit of knowledge when you are showing them or trying to sell them. Start with Pawnbroker _Bobs post and then reflect on the tables. I would encourage you to save this info into your own personal libraries. http://www.dankowskidetectors.com/discussions/read.php?2,24105,24105#msg-24105 Genstone Weight Conversion Chart Gemstone Identification Gemstone Weight Calculation Formulas Gemstone and Other Compounds Specific Gravity List and lastly, some more of Pawnbroker _Bob's posts around selling gems. The thread is not long and he is the expert. http://www.dankowskidetectors.com/discussions/read.php?2,23695,23791#msg-23791 There you go. All I know on the subject I got from someone in the know. All in one place. HH Mike
  14. Specific gravity list. Compound..............Avg sg. Copal...............1.06 Amber...............1.08 Bakelite............1.26 Jet.................1.30 -1.35 Tortoiseshell.......1.30 Erinoid.............1.33 Celluloid...........1.38 Vegetable Ivory.....1.40 Ivory...............1.80 Kurnakovite.........1.86 Gaylussite..........1.99 Ulexite.............1.95 Meerscham...........2.00 Bone................2.00 Fire Opal...........2.00 Opal................2.10 Chrysocolla.........2.20 Stichtite...........2.2 Silica Glass........2.21 Natrolite...........2.225 Sodalite............2.13 -2.29 Alabaster...........2.3 -2.33 Obsidian............2.3 -2.6 Apophyllite.........2.3 -2.5 Thomsonite..........2.35 Hambergite..........2.35 Petalite............2.39 Mouldavite..........2.35 Obsidian............2.35 Tugtupite...........2.37 -2.57 Hauynite............2.4 Cancrinite..........2.45 Colemanite..........2.42 Leucite.............2.47 Pseudophite.........2.55 Howlite.............2.53 -2.59 Veriscite...........2.55 Elaeolite...........2.55 -2.65 Amazonite...........2.56 -2.58 Orthoclase..........2.56 Moonstone...........2.57 Sanidine............2.57 Moss Agate..........2.58 -2.62 Chrysoprase.........2.58 -2.64 Iolite..............2.59 Bowenite............2.60 Agate...............2.60 -2.65 Chalcedony..........2.60 Vivianite...........2.65 Peristerite.........2.61 -2.63 Aventurine..(fsp)...2.62 -2.65 Scapolite..(pink)...2.63 Sunstone............2.64 Quartz..............2.65 Amethyst............2.63 -2.65 Prasiolite..........2.65 Citrine.............2.65 Synth. Emerald......2.65 Coral...............2.68 Aquamarine..........2.69 Beryl (yellow)......2.69 Labradorite.........2.69 Pseudophite.........2.70 Onyx................2.70 Augelite............2.70 Tiger eye...........2.64 -2.71 Emerald.............2.71 Labradorite.........2.70 Aquamarine..........2.67 -2.71 Scapolite...........2.70 Calcite.............2.71 Pearl (natural).....2.71 Pearl (cultured)....2.75 Talc................2.75 Turquoise...........2.80 Serpentine..........2.4 -2.8 Steatite............2.7 -2.8 Lapis Lazuli........2.80 Beryllonite.........2.82 Jasper..............2.58 -2.91 Conch Pearl.........2.85 Prehnite............2.87 Verdite.............2.90 Pollucite...........2.92 Argonite............2.94 Dolomite............2.85 -2.95 Anhydrite...........2.90 -2.99 Datolite............2.95 Phenakite...........2.96 Nephrite............2.96 Brazilianite........2.99 Nephrite............2.90 -3.04 Danburite...........3.00 -3.07 Tremolite...........2.90 -3.1 Magnesite...........3.00 -3.12 Andalusite..........3.12 -3.18 Amblygonite.........3.03 Tourmaline..........3.02 -3.26 Lazulite............3.09 Euclase.............3.10 Zoisite.............3.10 Andalusite..........3.15 Kunzite.............3.16 -3.2 Hiddenite...........3.16 -3.2 Carborundum.........3.17 Fluorite............3.18 Spodumene...........3.18 Apatite.............3.21 Fibrolite...........3.25 Smaragdite..........3.25 Sillimanite.........3.25 Enstatite...........3.27 Axinite.............3.28 Ekanite.............3.28 Tanzanite...........3.28 -3.35 Diopside............3.29 Dioptase............3.30 Kornerupine.........3.32 Jadeite.............3.34 Peridot.............3.34 Purpurite...........3.35 Zoisite (blue)......3.34 Idocrase............3.38 Rhodizite...........3.40 Epidote.............3.45 Dumortierite........3.26 -3.41 Sinhalite...........3.48 Hypersthene.........3.45 Hemimorphite........3.45 Grossular (massive).3.50 Diamond.............3.52 Sphene..............3.53 Topaz (yellow)......3.53 Topaz (white).......3.56 Periclase (synth)...3.59 Gahnite.............3.58 -3.98 Rhodonite...........3.60 Rhodochrosite.......3.60 Spinel..............3.60 Grossular...........3.64 Benitoite...........3.67 Taaffeite...........3.61 Spinel (synth)......3.63 Hessonite...........3.65 Barytocalcite.......3.66 Benitoite...........3.67 Kyanite.............3.68 Staurolite..........3.70 Azurite.............3.80 Pyrope..............3.70 Chrysoberyl.........3.71 Alexandrite.........3.70 -3.73 Staurolite..........3.75 Uvarovite...........3.77 Malachite...........3.80 Pleonaste...........3.80 Demantoid...........3.82 -3.85 Chalybite...........3.85 Periclass...........3.80 Anatase.............3.88 Gahnospinel.........3.97 Celestite...........3.97 -4.00 Corundum............3.96 -4.01 Sapphire............3.99 -4.00 Ruby................3.97 -4.08 Painite.............4.01 Willemite...........4.03 Sphalerite (blend)..4.09 Glass...............3.15 -4.20 Zircon (green)......4.50 Almandine...........4.97 Spessartine.........4.16 Chalcopyrite........4.20 Rutile (synth)......4.25 Witherite...........4.27 -4.35 Smithsonite.........4.35 Barite..............4.50 YAG.................4.60 Zircon (blue,white).4.69 Chromite............4.1 -4.9 Pyrite..............5.10 Hematite............5.05 Strontium Titanate..5.13 Proustite...........5.57 -5.64 Cubic Zirconia......5.6-5.9 Zincite.............5.66 Crocoite............5.90 -6.1
  15. Hereunder the standard formula Round faceted stones: Diameter squared x depth x S.G. x .0018 = ct Oval faceted stones: Length x width x depth x S.G. x .0020 = ct Emerald cut faceted stones: Length x width x depth x S.G. x .0025 = ct Rectangular faceted stones: Length x width x depth x S.G. x .0026 = ct Square cut faceted stones: Length x width x depth x S.G. x .0023 = ct Marquise cut stones, (navette): Length x width x depth x S.G. x .0016 = ct Pear cut stones: Length x width x depth x S.G. x .0018 = ct Square cushions: Diameter squared x depth x S.G. x .0018 = ct Rectangular Cushions: Diameter squared x depth x S.G. x .0022 = ct Square step cut stones: Diameter squared x depth x S.G. x .0023 = ct Rectangular step cut stones: Length x width x depth x S.G. x .0025 = ct Cabochon cut stones: Length x width x depth x S.G. x .0027 = ct Average corner meas & belly meas for cushions, L&W for rectangles, etc..
  16. Hi all, This info was shared with me by Pawnbroker_Bob from the Tom Dankowski site in PM's back in 2012. Gemstone Characteristics Table We have compiled a listing of the scientific characteristics of many different gemstones. This is a chart that displays at a glance the important information about each classification of gemstone and it's members. Enjoy! Gemstones This is a fairly comprehensive listing of gemstones with their specific gravity, Mohs hardness, index of refraction and gemstone family classification in alphabetical order. We color coded them to help differentiate between them (these are approximations and subject to error). Specific Gravity: Specific gravity is the number of times heavier a gemstone of any volume is than an equal volume of water; in other words, it is the ratio of the density of the gemstone to the density of water. For all gemstones listed in this table there is a scientifically determined specific gravity. You can use the specific gravity and a couple simple measurements to estimate the carat weight of a stone. Mohs Hardness: Hardness can be tested through scratching. A mineral can only be scratched by a harder substance. Therefore, a relative scale can be established to account for the differences in hardness simply by seeing which mineral scratches another. That is exactly what French mineralogist Friedrich Mohs proposed almost one hundred and seventy years ago. The Mohs Hardness Scale starting with talc at 1 being the softest and ending with diamond at 10 hardest, is universally used around the world as a way of distinguishing minerals. Simply put - the higher the number, the harder the mineral. Index of Refraction: All materials refract light, ie alter its angle. The amount by which light is refracted is an important feature of every gemstone. The measure of a material's refractivity is known as its index of refracton (R.I.). Without going too deeply into physics, light travels at different speeds through different media. When light passes from one medium to another, its path is altered (bent) and it is said to be diffracted. Gemstone Family Classification: The gemstones listed here show every color in the rainbow. Even with such variety of colors, patterns and shapes - they can be broken down into 16 different families based on their chemical composition.
  17. If you are going to hunt jewelry you need to know how to size your stones. Gemstones Weight Conversion charts All Weights Are Approximate 1 MM = .03937 inch
  18. http://www.ebay.com.au/itm/1Location-GPS-coordinates-29-GOLD-NUGGETS-fossicking-Georgetown-QLD-Minelab-RFDS-/222335915222?hash=item33c440d4d6:g:VTwAAOSwMVdYIwYS Enterprising fellow, wonder how many times he`ll sell the coords.
  19. This is from the real experts in the UK for cleaning items hundreds or even thousands of years old. http://www.colchestertreasurehunting.co.uk/C/cleaning.htm plus previous thread on cleaning silver....
  20. Looking for any information on who provides lab services to clean mineral specimens in California. I am sure I am can't be the only one interested in such a service. i won't mess with this wicked and nasty chemical, but some Quartz with gold specimens would look a lot better with an acid treatment.
  21. Hello all, I have been having a little luck on the southern calif beaches lately, Managed to find this silver standing liberty half dollar along with a merc dime and a buffalo nickel. They are all in about the same condition being in the ocean and sand for who knows how long. Any ideas on how to clean them?
  22. The Minelab PRO-ALLOY Gold Tester. Could be a good tool for the jewelry hunters like me, not so sure about nugget hunting but probably will work on nuggets with clean surfaces. At $375 though going to be a tough sell. Part # 3011-0307 Features: Instant gold karat reading Fast and accurate Non-destructive Protective case included Batteries included (1xAA) What's included: PRO‑ALLOY meter Test probe set 1 x AA battery Protective meter cover Soft carry case Multi-language instructions Official Minelab Product Page
  23. I was thinking it would be interesting to hear your (other members) thoughts on cleaning your gold. One guy I used to hunt with felt very strongly that you should just rinse it with water, no further cleaning, and absolutely no chemicals. What I do, is scrub using a tooth brush (the same one I use daily ) and citrus cleaner. I then soak the gold in Whink for a day then scrub again with citrus cleaner. If it has a calcite/ caleche coating like much of the Rye Patch Chevron gold, I soak it in CLR. I like the gold to be free of any visible iron oxide, manganese, calcite, etc. But I don't like the gold to start getting polished edges and high spots, like what happens from handling it often. I like that natural dull finish it acquires from the Earths fine grit, sand, rocks, natural movement etc... I noticed this crystalline gold for sale on Ebay. It appears to me that the host rock was dissolved with a chemical that also began to soften the gold itself and polish it? Maybe Aqua regia (nitric acid and hydrochloric acid), but when the host rock was gone the specimen was then neutralized? It does look beautiful, but to me, unnatural. But who am I to decide what should be considered natural or not? Therefore, it is just my personal preference. But what are the majority of collectors looking for? To me, one of the most enjoyable nugget discovering experiences is when all you have left in your scoop is a hard dirt clod that ends up hosting a nice gold nugget. The next time that happens, I plan on gently removing the edges of dirt until there is proof of gold and then just save it in that condition (until some day I just get bored and decide to break it open ). Thanks all...
  24. I need some ideas on getting a fair price for gold jewelry. My sister and I inherited gold and diamond jewelry that appraises between 30 and 40k. The local jeweler who actually crafted many of the pieces is offering sub-wholesale 11k, according to him most of the gold will be scraped, diamonds reset in new jewelry or used for repairs. Many of the gold chains are in pristine shape so I doubt he'll actually scrap them. I'm not keen on screwing around with a bunch of "tire kickers" and scammers on Ebay. What kind of options are out there?
  25. I was going thru my junk and found a gold bracelet that I had always thought was gold plate cause it was mostly brown with some yellow underneath? On closer examination, the clasp is clearly marked 14 K underneath by where the chain attaches and it does feel heavy. I got this ages ago with my Tesoro Lobo, before I had a metered machine.Just tested it with my MXT and 6 x 9 coil and it reads VDI 26-30, Pulltab/Ring on Coin mode and in Prospect mode,it reads 10% iron id which sure sounds like nonferrous to me...Does 14 K gold really corrode like this? How do I clean it up? Maybe I better take it to my coin dealer and see what he will give me ? It is about 8 inches long, 1/4 inch wide and 1/16 inch thick. Photos attached,taken with my new used Canon SX 50. -Tom
×