rocks that i dug up and need help identifying them please

[mellyc220]

need help identifying these rocks

 

[P.ALLEN]

Second one is Calcite, notice the cleavage on it, pretty indicative of CaCo3 precipitates. #'s 5,6,& 7 are Flint nodules. 18 is limestone, 19 is another nodule. #'s 24,25,26,27 are all related to limestone formation and depositional changes, yes you can get crystals like that from limestone. Most of these look like they are sedimentary in origin. I love limestone and some of the cool things it does with silica, that silica is all fossilized organisms/micro organisms.

 

[mellyc220]

thank you so much....ive had these forever and i actually have alot more that i also need help identifying as well....im a rock collector i love rocks lol....do you know if any of them are worth anything

 

[P.ALLEN]

To you yes, you may make a few bucks trying to sell them online, but it might be more trouble than it's worth. The nice "nodule" like ones if they feel hollow when you tap them will definitely be crystalline inside, they are cool to give to kids to play with and break open. They well definitely make nice border or edging on your driveway, there is a rocks, fossils, and other geology related subs on here. Bakersfield CA? If so go on the California Geological Survey site CGS. CGS Welcome to the California Geological Survey. Or mindat https://www.mindat.org/ (mindat can find anywhere not just Cali) those two sites can help you find some awesome rocks and minerals in your area.

 

[bradyboy]

think it would be best if you added a letter or number to each image so we can say - " number 3 looks like a "
there's is also a forum here for rock hounds
Brady

 

[mcl]

First one reminds me of this agate I found:






Also, some of the pictures look like geodes.