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Found 14 results

  1. Amber? Copal? Any ideas?

    I inherited a friend's mineral collection. Lot's of interesting specimens of turquoise, petrified wood, crystals, etc. He lived in New Mexico and I know some of the pieces are from U.S. southwest area. That's about all I know. This one's a mystery, and he really didn't have any idea either where it came from. Has a strangely organic look to it though. Any insight or thoughts will be appreciated. Thanks!
  2. My fossil collection

    This is my fossil collection please show us yours!!! These are my display fossils only The first picture is a large unidentified fossil shark tooth I recently bought from a local fossil store. The second is my display collection I put fossils in once they have been prepared or bought. The next photo is Madagascar copal it is about 9 million years old and it has multiple inclusions including fly's, wasps, and spiders. The next is an unidentified fish fossil in good shape but not too valuable. The fifth fossil is a trilobite (paralejurus) in Devonian limestone it is 385 million years old and was found in morocco I know the most about this one. And last but not least is my small polished chunk of Baltic amber it is 35-50 million years old and contains a winged insect inclusion as you probably know amber is fossilised tree resin and copal is hardened tree resin that is not quite fossilised. Thanks, HAPPY HUNTING!!!!!!!
  3. I newely collected this copal. But, there are lots of crazing on it't surface. I can sure it is copal because i do acetone test so this is more weak then amber. I thinking about grinding this nicely with soft cloth and tooth paste. I want to know it is ok to copal, and how to store it without crazing. Thanks for your help, and apologize to my short English...
  4. Copal.jpg

    From the album MY FOSSIL Collection - Dpaul7

    Copal SITE LOCATION: Columbia TIME PERIOD: Recent Era (several hundred to several thousand years old) Data: Copal is a name given to tree resin from the copal tree Protium copal (Burseraceae) that is particularly identified with the aromatic resins used by the cultures of pre-Columbian Mesoamerica as ceremonially burned incense and other purposes. More generally, the term copal describes resinous substances in an intermediate stage of polymerization and hardening between "gummier" resins and amber. The word copal is derived from the Nahuatl language word copalli, meaning "incense". Copal that is partly mineralized is known as copaline. Grimaldi (1996) referred to copal as subfossil resin, several hundred to several thousand years old, that may take a high polish, but will craze deeply on the surface after only a few years when the volatiles from the original resin evaporate.
  5. I recently obtained this piece of amber, which was described as being from Myanmar, and therefore of cretaceous age. I got it very cheaply, I'd say (from a well known auction site), and this led another collector to rather rudely assert that it was fake. I have no reason to assume that it is fake, but at the same time, I'm having trouble proving that it's authentic. When I poke it with a hot needle, the needle makes an impression but doesn't slice straight through it. Dark grey smoke rose from it, which didn't smell of plastic. When I rub it vigorously with a soft cloth, it gives off a mild resinous aroma, but doesn't get sticky. It floats in salty water, in the same way as my Dominican amber does (my Baltic amber slowly sank, but I suspect I didn't have enough salt in the water). I haven't been able to get it to hold a static charge, but then I can't with any of my amber, so I must be doing that all wrong. I wouldn't normally post most of these pictures, because all but one qualify as photographic failures, but I've since re-polished the surfaces for future photography (my spare-room studio being out of action at present). Note a seed (?) of some kind just above the antenna, near the top, and some kind of larva or something to the left of the millipede. That looks like a tiny beetle on the left hand side of this one. General inclusions, including bubbles and an insect 'riding' on one, centre-right. One of the pseudoscorpions. There are various other inclusions too, including another pseudoscorpion and one tiny spider. I don't see any way in which this is an out-and-out fake (e.g. plastic). So that leaves the possibility that it's authentic, or copal, or that it's amber with the insects inserted afterwards. I'm very doubtful of the later, because they are randomly placed in the amber and I don't see any signs of tampering. That would seem like a lot of effort for something sold for £35/$45. It doesn't seem to have any of those little oak hair things that you get in Baltic amber. Not sure whether cretaceous amber, or copal, have those or not. I'd welcome any thoughts on this. Thanks.
  6. I bought this a few years back and I was wondering if it was amber, copal or plastic. It was labeled as Baltic Amber and it has a spider inclusion in it. Are there any tests I can do to it that are pretty reliable and will not ruin it. I put it in salt water and it sunk to the bottom. Not sure if the mixture was correct. I have a saltwater fish tank and I used water from it for the test because it is the same mixture as ocean water. Thanks for any help.
  7. I really want to collect mammal fossil. i can trade basilosaurus fossil, trilobite, nice copals, korean plant fossils and others. i want mammal skull fossil, jaw bone, and bone(can be from anyone). if you want to trade, send PM to me. thanks + l'm from South Korea. +i attached some my fossils pictures.
  8. I have been doing some recent work with Columbian Amber/Copal and thought I would throw this out for a general discussion. It is fun, if nothing else Most of my life I have believed that there is no difference between Copal and Amber. I know chemically there is no difference between the two. Amber/Copal from the same plant from different time periods, even millions of years apart are identical. Fossil resin's molecular make-up is mostly carbon and hydrogen atoms that form hexagonal rings. Molecular bonding between the rings increases over time (called polymerization, as in modern epoxy resins), and the tacky resin becomes hard. For all practical purposes, the hardened resin is a "plastic". Exactly when the resin becomes amber/copal, or a fossil, is not definable by any scientific criteria. I would like to see if others have the same thoughts. I am also attaching a picture of the best piece in my collection. "Best" meaning my favorite. This is one of my favorite articles. The following is by Dr. Robert E. Woodruff Emeritus Taxonomist, Florida State Collection of Arthropods Resins are produced by many trees and other plants; Frankincense of the Bible is one of these. Peach and Cherry trees produce resins that children often use as chewing gum. No botanist or paleontologist knows when resins were first produced, but we know it was probably more than 100 million years ago. They are produced to heal wounds, just as our blood coagulates to seal injuries. There is no doubt that these resins have been produced continuously since they first occured. Because they are affected little by the elements, resins are similar to their original form. Only a few volatile oils are eliminated by time and burial (e.g., in marine sediments that are 3000 ft. elevation now). We use Canadian Balsam as the most permanent sealant for cover slips on microscope slides. Unfortunately, no one can presently date these resins by any definitive tests. Because they have been continuously produced, there are no drastic changes from one geological period to another. We can infer age, if we know the age of a sedimentary deposit in which they are found (this would be a minimum, because older material could have been redeposited). There are those (including several scientists) that insist that the word amber must be reserved for certain age resins. With such a continuous resin production, and no clear dating, it could all be called amber. It is a semantic argument, & those who sell Baltic, Dominican, & Mexican "amber" do not want to use the term for any that might be more recent. Obviously a commercial bias is present. They prefer to use the term "copal". Strictly speaking, the Aztec word "copal" is used for all resins! They do not distinguish the Miocene deposits from southern Mexico from the recent resin collected for incense today. Therefore it should not be redefined to fit some new arbitrary definition based on age. It is considered lower class only because of these commercial interests. We have Cretaceous amber (at least 65 million years old) and much Oligocene & Miocene amber, as well as Pliocene (Africa), and many others. We have no dates or specific geological information on Colombian amber. Because of it's color and hardness, we believe it may be Pliocene or Pleistocene (as is some of the Dominican amber from Cotui). Studies underway may clarify the deposits, but evidence suggests that there may be varying geological formations & ages. Mankind (depending on the anthropologist's definition thereof) has been on earth only 3-5 million years. Certainly the Olduvai specimens are fossils (both men & animals) and extremely valuable for study of human evolution. If we assume the Colombian amber is this recent, it still has extremely important value for those studying the fossils. Studies of biodiversity, biogeography, ecology, and evolution, all benefit from the scientific description of these amber fossils. Age is relative, the old man said, but old is not necessarily better. To call the Colombian material anything other than amber is a misnomer! Logically, we should just call everything "resin", with qualifying adjectives of origin or geological formation. I doubt that this would be acceptable to most "amber" dealers!
  9. What Type Of Copal?

    i bought this piece a while ago, it was listed as "amber" but is actually copal. there are a lot of insects in the piece including an ant, some weird fly-like insects, another weird insect, some kind of roach, etc. it was quite hard, and was about NZ$7. i don't know what kind of copal it is and i am hoping someone may be able to shed some light on this.
  10. today i found a virgin copal site, A.K.A i found another creek in the forest. this creek in particular was more ideal than others i had hunted in before because is had eroded more steeply. what i mean is that the creek bank was quite sheer in some places, which is perfect for finding kauri copal because your digging is done for you. this particular piece was spotted while i was getting into the creek to look for kauri copal, i saw it and gave it a slight kick with my gumboot (wellingtons for the non kiwis out there) and saw the copal underneath. after a good heave and tug to get it out of the mud it came free and i was astonished to see, after i had cleaned it off in the creek, that it had a piece of kauri bark attached to it, and on closer inspection, it also has a knot-like bark injury preserved too. i am going to be polishing off the copal in the weeks to come and when i am finally done with the sanding and polishing, i will post pictures too. <---- bark injury, this is on the inside of the bark. <---- outside of bark that is covered in the resin that seeped out of it thousands of years ago.
  11. Polished Kauri Gum

    Ok, so a few of you have heard me rambling on about that Kauri gum i found a while ago but up until now i haven't got around to giving you pictures. well, here is a picture of a polished piece of the stuff. ~90% of the lump we found was milky and mostly opaque but there was a large pocket of clearer copal in one part, the piece in the picture is a piece of that pocket. i then polished it up with Brasso and a rag, and now it shines beautifully. me, and occasionally my friends, will be hunting for some more of the copal so you can expect to see more pictures in future. Insects, you ask? as of yet, i have not looked at it under the microscope.
  12. Amber Or Copal?

    i bought a piece of amber from a shop for $7 (NZ) and it was in a little tray with other pieces all called 'amber' and not specifically listed as having bugs in them. i tried the fingernail test and on one side it scratched a really tiny bit and on the other side barely at all. i think it was baltic becuase it was sold alongside gems. it has lots of insects inside and is irregular both outside and inside. is a little misty on one side, has an ant, some kind of fly larva, maybe a couple of midges, another fly. it was with other pieces with no inclusions. is it copal or amber?
  13. Possible Copal/amber

    hi, so me and my brother and my friend went into the small forest behind my house, and we were digging around in a muddy stream (the mud is very gloopy and your feet can sink in it a bit) , we found this MASSIVE stone (that's what we thought) it had something that looked like wood sticking out of it, although the wood's sides were straight and it looked like some kind of fence post. we smashed open the 'stone' with our spades and behold: a cream-coloured, hard, glass-like substance. it has a strong, almost chemical-like aroma, similar to the aroma of a root we split while digging. it was irregular in shape, and although the outside was covered in clay, the inside was hard and glass-like. however, it did not float. this may be becuase it was a freshwater stream. when hit really hard with the edge of a metal spade, it exhibits behaviur similar to that of amber bieng hit with the same thing. it has swirls of more opaque material, in the form of creamy oranges and yellows. please, if anyone can identify it, that would be a massive help. if you need a picture, wait a few hours or so and i may have found some more. i can't find the original hunk, but it was huge. sorry i do not have pictures of this, although i may have some soon, i am going out to look for some more.
  14. Hi guys, ran into a snag again. I 've got an unpolished Copal from Taiwan. Unfortunately, I haven't actually heard of Taiwan having copal deposits, so I highly doubt its actually from there. Anyone's got any clue to where or what Copal I am looking at? Next up, two shark teeth from the Ambon Island of Indonesia. I feel the one from the left is from a mackeral shark, maybe even Sand Tiger. The one on the right I feel is a mako, or dusky shark. Unfortunately I am no expert and so I would appreciate input from any experts here. If it would help, the teeth on the left is thick and the right is rather flat. Thanks again.
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