Are these all Quartz?

[Earth]

I'm fairly new on this site, I love it, learn a lot from other's posts. Just moved to the beach 6 months ago, started collecting rocks 3 months ago. What a thrill? Just learning about rocks. I hunt the beaches in Delaware almost everyday. In any case, this is probably an elementary questions, but, I'm sure these are all Quartz, please confirm. I find a lot of this in many colors on the beaches...huge pieces...

 

[Eu_citzen]

Quartz typically looks glassy or greasy. (=luster) Chalcedony, a low temp. variation of quartz often looks waxy.
I'd guess you got both in there.

 

[DDancer]

Yep

 

[Earth]

Quartz typically looks glassy or greasy. (=luster) Chalcedony, a low temp. variation of quartz often looks waxy.
I'd guess you got both in there.

I appreciate that! Thanks!

 

[Earth]

Yep

Thanks!!!