I'm a beginner in rock collecting but have been looking on the coast near Malibu and Palos Verdes CA and came across these. Any idea on what they are? The last one is from Barstow CA.
Pic 1 is a green pebble rounded by rivers it can not be identified by pictures. No 2 is just a white flash and you need to make a better photo. 3 looks like sandstone but is to blurry to identify positively. 4 seams to be sedimentary rock, can not be specified more. No 5 is interesting, try to make a better photo of that one.
Yep better pictures. The round stone is what I'll simply call quartzite~ something with a quartz composition but otherwise no real identifiers. The second suffered from the flash of the camera but speculatively may be a bit of feldspar, third another quartzite *to blurry*, fourth as Moesia thinks appears to be sedimentary but I'd like to see the nodules in it, the last is what appears to be a granite or pegmatite.
I know it's been a while and Thank you all for your input. I'm very new to this site and forum posting( can u tell lol) I did take some better ones I'm going to see if I can upload them now.... Thank you again.
The ones above are the blurry flash
This is the fourth one from before
Another one of the blurry flash
The fourth one
5th one
The green one.
I hope these are way better and clearer. They were taken with my camera n not my phone.
Much better pictures thanks
Pictures 1,2 and 4 are appear to be a worn shell, in the tip of it there appears to be whats left of a worm bore in the material. Technically its still a rock but nature made
Pictures 3,5 are a sandstone conglomerate. Vitrified mud if you will with some larger stones in it, one quartz for sure, source could be a stream or other body of water.
Pictures 6, 7 appear to be what I would call sugar quartz and the specks appear to be garnet. Sugar quartz is just porous fine grained quartz crystals and the coloration of the inclusions suggests garnet though magnetite can look similar.
Your last round stone appears to be a quartzite of some type also with possible garnet inclusions. My thoughts.