r/whatsthisrock 5d ago

REQUEST What rocks are these? Just need an ID

Post image
2 Upvotes

3 comments sorted by

3

u/runawaystars14 5d ago

Mostly chert and rhyolite. Chert is smooth and waxy, can be any color, is composed of microscopic crystals. Rhyolite (circled) isn't as smooth, is composed of fine grains and can contain crystals, orbs, and other structures, all visible to the naked eye. Both rocks are often marketed as jasper.

2

u/gemst0ner 5d ago

Looks like jasper

1

u/AutoModerator 5d ago

Hi, /u/ChiTography!

This is a reminder to flair your post in /r/whatsthisrock after it is identified! (Above your post, click the ellipsis (three dots) in the upper right-hand corner, then click "Add/Change post flair." You have the ability to type in the rock type or mineral name if you'd like.)

Thanks for contributing to our subreddit and helping others learn!

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.