Jump to content

What Are These Stones ?

Osh

By Osh
in Rocks, Minerals, Gems & Geology

 Share

Recommended Posts

Geologyhound Silver Contributor

Geologyhound

Posted
Posted

Scrape some of the black flow looking stuff on some unglazed porcelain.  If it leaves a bright red to dark red streak, it is boytryoidal hematite.  If the streak is  brownish black, then it could be psilomelane.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing
×
×
  • Create New...