Cobalt Chromite Green. This is one of the palette secrets. While it's not for everyone, this color has a useful role in mixing, especially for realistic work. While in masstone it is not exactly a showstopper- a dull green- in blends it is helpful for creating muted colors. Like many cobalts, it comes in a range of greens with some being warmer and some cooler.
It is rated a B for toxicity, so we'd place it among the toxic pigments. If it does contain some soluable chromium that's a toxic issue, so do avoid all contact with your mouth, don't breathe dust, etc. Please treat this with all due respect and caution just in case.
Some list this as a medium drier, and others as a fast drier.
In the Artist's Guide to Health and Safety Monona Rossol has information on working with pigments containing Cobalt and also a section on pigments containing chrome. Her most recent work can be obtained through her site.
