marissasully
off to a rocking start
Member since August 2021
Posts: 15
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Post by marissasully on Aug 11, 2021 16:53:22 GMT -5
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Post by rmf on Aug 17, 2021 20:32:31 GMT -5
looks like a dendritic agate. How hard is it? H=7 agate h=6 feldspar
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Post by MsAli on Aug 18, 2021 5:58:39 GMT -5
Looks like beach tumbled granite
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Post by mohs on Aug 18, 2021 12:43:33 GMT -5
yellow is my fave color & that spot of red rocks
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Post by stephan on Aug 19, 2021 14:32:44 GMT -5
Second the granite motion
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fuss
spending too much on rocks
Member since October 2018
Posts: 252
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Post by fuss on Aug 21, 2021 10:46:59 GMT -5
I don't see Agate or Granite based on these pics. Could be any number of possibilities and since this pebble is likely a glacial erratic you have to conduct some basic tests to find out. RMF is pointing you in the right direction to find out by doing a hardness test on the yellow portion of the rock. Also Try posting pics of your samples dry as well, that makes a big difference for ID. And if you don't care about keeping these pebbles whole, crack them in half and photograph the fresh surface area that make ID a lot easier since the surface is so worn and weathered. It also might be time to look into some id tools like a streak plate, Muriatic acid, glass plate, magnet, a loupe (10x jewelers lens) and even a UV light-long wave. You can sources these things yourself or some can be purchased here geology.com/store/collections/streak-plates-magnets.shtmlIf you learn to use these tools (easy) and post the results with your finds, you will be able to narrow down the possibilities of what you have found.
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