Look at the photos and define the minerals !
DW7 is now supporting this course. Please post any comments and suggestions in the Forum community.memrise.com/t/63605. Reversed levels added which test the other way once fully learned. Also see "What next?" levels for follow on courses. Updated May 2021.
Welcome to Memrise!
Join millions of people who are already learning for free on Memrise! It’s fast, it’s fun and it’s mind-bogglingly effective.