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ROCKS, MINERALS and FOSSILS

Rockhounds information pages with subjects related to geology and mineral ID
 


Rock and Mineral Forum Guidelines

There are just a few rules here and yup I do enforce them and keep an eye on things as best I can. Here are a few guidelines I'd like you to follow if you will be participating here. This forum is not moderated as heavily as the other sections so please do not enter or open a topic if you think you will be offended. If you are at least respond like an adult or we will remove your post as soon as brought to our attention.

Vulgar and abusive language is not welcome here! Heck a cuss word to get a point across is not so bad, but I think you know what I mean.

I will not host public arguments and pissing matches between individuals here so please just don't do it. When it happens the post most times will simply vanish into cyber space.

Political or Religious posts belong in "Off Topic" but surly you can find other forums that host those discussions if it is your thing, I don't think anyone cares if you are Conservative or Liberal when we are out hunting gold nuggets.

You may not use this forum to advertise any other dealer, store, or product without written permission by owner at any time. Used items are allowed in the classified section.

This forum is not responsible for anything said by it's members at any time. This is a public forum and will remain so and although I can and will occasionally zap "bad content" I don't do it often and so far have never permanently banned a person. Also opinions expressed here do not always represent the opinion of the forum's owner!

Guests are welcome to browse the forum and use the information provided by registered members, but you can not post yourself until you are a registered member.

That is pretty much it my fellow Nugget Shooters so enjoy the forum, keep it clean and play nice.


1,322 topics in this forum

  1. Identification

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  2. Identification assistance

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  3. What is this?

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  4. Mineral carving id?

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  5. Silver Sheen Obsidian

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  6. La Choya Geodes

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  7. Oco Agate Geodes

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  8. Help

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  9. What’s this?

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  10. Whats this?

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  11. Fire agate heart?

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  • Posts

    • Every rock that makes its way from outer space down thru earth's atmosphere is going to have indications of that violent passage on it.  It may take looking close with magnification but tell-tale signs will be there.  Close examination will uncover indicators like flow lines and/or crust whether it be primary fusion crust formed early in the passage or a lighter thinner type of crust formed later after disruption.  There can also be cases of melting and flowing, redepositing of material.  Also regmaglypts, thumbprint like excavations caused by ablation.  Some are easily identified, others take a little studying.  Then there can be cracking of the crust or partial fracturing of the stone.  These two are pretty common features and not hard to see in most cases.  All meteorites have made the trip thru the atmosphere.  I highly suggest studying these features and then when you find a suspect stone, look for those tell-tale signs.  Magnets will attract some but not all stony meteorites and then the attraction or magnetic susceptibility can vary greatly with different types of meteorites.  I hunt with my eyes, a metal detector, and I use a magnet rake but when I study possibles that I come across, I still look for the regmaglypts, crust, flow lines, fracturing, and so on.
    • The lamp is well-made and the company I linked has great service. The extra minerals they send with the lamp make a good comparative ID set as well.  If you’re going to be using it with someone else, pick up a spare set of UV goggles for it, that shortwave lamp is bad for the eyes. Find some scorpions and other cool stuff with it, it’s really neat to use around camp. You’ll be amazed how much fluorescent minerals you’ll find out there with it.  I don’t live in an area with uranium ore, but that may be something interesting to find with it too.
    • Kewl! I like that lamp. And the price is not too bad either.  Thanks!
    • The vesicles were my fault I burnt it where it's white because that's just what I do and call myself "testing it". It's really one that would have to be seen in person I guess.
    • He's coming at us with trash bro. If you are digging gold in a trashy area you just have to learn to go slow and dig it all.  If you are digging gold in a clean area you will get more gold than trash. But that has nothing to do with the detector. Maybe some detectors can help you differentiate targets without losing gold. They do that through sound and not so much discrimination. Many detectors have a very articulate signal. You can almost tell the shape of the target from the sound. But you are going to have to dig a few bucketfulls of trash to learn how to do that.  You are still going to dig those "ragged" signals that you know is not gold. If you are in a hot patch you will gladly dig every fleck of rust and every follicle of wire. In some patches that is just a fact of life.
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