mineral specimens
rare minerals
mineral dealer
systematic minerals
Black Hills minerals
fine minerals
mineral dealer
Dana minerals
IMA minerals
mineral collections
rock and minerals
gem crystal
0 item @ $0.00  

Search Mineralpedia – A Mineral Photo Database and Identification Guide

Reset
Gratonite

Named after Louis Caryl Graton, former Professor of Mining Geology at Harvard University in Massachusetts, USA. Gratonite is a rare mineral that can be found in Peru, Cuba, Poland, Bulgaria, Germany, Switzerland, the Isle of Man, Spain, Namibia, and Japan. It occurs in vugs in hydrothermal copper deposits. Associated minerals include realgar, pyrite, sphalerite, pyrrhotite, aresenopyite, enargite, tetrahedrite-tennantite, jordaite, canfieldite, and hutchinsonite.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/gratonite.pdf

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2021 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map