The ochre fit, so thanks for that one.
With the paris one it is 12 letters long, and the seventh letter from the top is a d, unless a carnelian relative isnt sard. Havent had any luck with the color one either, its 13 letters long.

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Red Ochre, common name for Fe2O3

All I can get for the synonym of paris is calcium sulfate. (Plaster of Paris) However, if colors is the key, try green or Paris Green.

I think that there are a few red compounds of cobalt.