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Post by rockjunquie on Sept 2, 2020 12:01:56 GMT -5
This excellent thread by our own wonderful 1dave should give you more than enough info to get you moving towards an ID for your awesome rock. The above link is well laid out in sections.
1. Color 2. Shapes and Cleavages 3. Hardness 4. Weight - Specific Gravity 5. Acid, Base, or Salt 6. Flame Tests
Before you post the pictures and ask the questions, see if you can pull off any tests to add info to your request. It will greatly improve your chances of getting both an answer to your question and a CORRECT answer to your question. We love these requests and we get bummed out when we can't help, so do your due diligence and help us to help you- then we will all be happy. Common Mistakes
1. The weird looking rock you have that’s magnetic and you think is a meteorite is not a meteorite. 2. The green rock you found is not jade. 3. The rock you found with little golden specs on it is not gold. 4. The egg shaped rock you found is not a petrified dinosaur egg. 5. The small clear rock you found is not a diamond. 6. The rock you found with banding on it is not necessary petrified wood. 7. The rock you found that looks like a tooth, bird, lizard, fish or some other living thing is not a petrified version of that. 8. The rock you found with what appears to be a dinosaur track on it just looks like that and was not stepped on by a dinosaur. 9. The rock that looks like poop is very likely not coprolite. 10. The chipped up agate, jasper or obsidian you found is very likely not a native American artifact.
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Post by pauls on Sept 2, 2020 17:32:38 GMT -5
Photos need to be close up and in sharp focus. A freshly broken edge helps. Wet if you are trying to get a name for something that relies on colour and pattern. Dry if it's a mineral where water obscures crystal shapes and other identifying features. Where is it from, we don't want directions to your secret spot, a general location sure helps rule a lot out and maybe a few in. A lot of rocks are just rocks, a mish mash of different stuff. Some have been given arbitrary names, but the names are essentially meaningless. Minerals have a chemical composition within certain parameters, a certain crystal shape, hardness, specific gravity etc. to be that mineral they must conform.
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Post by rockjunquie on Sept 2, 2020 17:49:47 GMT -5
Photos need to be close up and in sharp focus. A freshly broken edge helps. Wet if you are trying to get a name for something that relies on colour and pattern. Dry if it's a mineral where water obscures crystal shapes and other identifying features. Where is it from, we don't want directions to your secret spot, a general location sure helps rule a lot out and maybe a few in. A lot of rocks are just rocks, a mish mash of different stuff. Some have been given arbitrary names, but the names are essentially meaningless. Minerals have a chemical composition within certain parameters, a certain crystal shape, hardness, specific gravity etc. to be that mineral they must conform. What he said!
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