No.683
I just found some rocks on my local beach. Anyone able to give me information about them?
Some dupes
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>>685Different angle, this one appears to have lots of different materials in it.
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>>707Same one, other side.
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Last one. If anyone desires more pictures (with better lighting quality) in order to identify any of the rocks, I will gladly oblige.
I plan on taking some of these and grinding them into jewellery, so knowing what they are would be nice.
No.715
It might be harder to tell since they all look extremely weathered and that might obscure view of the actual mineral grain.
>>684Probably granite
>>687>>698>>695>>694>>693Probably quartz
>>691Granite
Many of these look aphanitic, which makes the grains hard to see. Did you tumble these yourself?
No.716
>>715Thanks, I havent tumbled any of these yet, or even done any work on them.
Do you think this
>>685 might be petrified wood? I'll crack this open soon.
I'm very interested to find out what this is
>>699Do you think they would be easier to identify if I cracked them in half?
No.717
>>716Can you post before and afters when you tumble them? I would love to see~
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>>717
He's not going to post them is he?
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>>718
Do you know how long it takes to tumble stones?
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>>720
Holy shit.
The short answer: Using a rock tumbler to convert rough rock into polished stones can take as little as one week to as long as two months.
http://rocktumbler.com/tips/how-long-does-rock-tumbling-take/
Mad respek to you rock tumblers out there. How does one get access to a rock tumbler machine?
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>>725
Buy one kek
I used to have a small one that I used on some of the materials I found. I live in New Mexico which has some very good mining spots. Hell even the town I lived in had a lot of shiny minerals.
Out in deming I found a few geodes on my own. I had to be extremely cautious of the desert heat (120f+), rattlesnakes, and scorpions, but it was well worth it.
Tumbling rocks takes a very, very long time. Even smaller sized ones take a while.
No.765
>>725
Making one isn't hard.
Just scavenge an electric motor from something and build a frame out of wood. I used to have one with the same basic design as attached pic. It cost maybe $25 total, mostly just for bronze bushings for the axles.
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>>765
Just going to spitball here, but the cheapest place to get an electric motor, I think, would be to get something from a dollar store.
I got a motorized pumpkin scraper a few months ago that I've been meaning to dismantle so I could fix up an old RC car.
I'm not sure how you'd rig up the wheels and belts. Those sound a bit more complicated to put together from scavenged material.