Mineralogy owes the diſcovery of this to Mr. Woulfe. Phil. Tranſ.

§ 176.

HYDRARGYRUM (quickſilver), mineralized by ſulphur. Cinnabarine.

Cronstedt Min. § 218. Cinnabaris.

§ 177.

HYDRARGYRUM (quickſilver), mineralized by ſulphur and iron. Martial.

I am doubtful whether this be a diſtinct ſpecies. The iron perhaps is only mechanically diffuſed.

§ 178.

HYDRARGYRUM (quickſilver), mineralized by ſulphur and copper. Cuprous.

Cronstedt Min. § 219.