Chapter D: A. BORN ſent me chryſtals of this ſpecies, which expoſed to the fire

gave out aerial acid, but they were not wholly ſoluble in acids.

§ 236.

ZINCUM (zinc), mineralized by _ſulphur_ and _iron_. Black jack.

CRONSTEDT Min. §§ 229. 230. _Pſeudogalena._

ANTIMONIUM
OR
ANTIMONY.

§ 237.

Its ſpecific gravity is 6,860. Aqua regia diſſolves it well; vitriolic acid requires boiling; muriatic and acetous acids act hardly at all upon it, unleſs previouſly calcined. The nitrous acid corrodes it ſo as to prevent the ſolution. The phlogiſton it loſes in ſolution is expreſſed by 120, and with reſpect to the force wherewith it retains this, it ſtands in the ſixth place. It melts at a heat of 809 degrees.

§ 238.

ANTIMONIUM _nativum_ (antimony). Native.

CRONSTEDT Min. § 238.

§ 239.

ANTIMONIUM (antimony), mineralized by ſulphur. Sulphurated.

CRONSTEDT Min. § 234.

§ 240.

ANTIMONIUM (antimony) mineralized by ſulphur and arſenic. Red.

CRONSTEDT Min. § 235.

MANGANESIUM,
OR
MANGANESE.

§ 241.

Its ſpecific gravity is 6,850. This new metal is ſoluble in all the acids, and is ſo readily deprived of its ſaturating phlogiſton that with iron and ſome others it ſtands the loweſt in the ſeries. 227 expreſſes the quantity of phlogiſton it loſes in ſolution. It is very difficult to melt, more ſo than iron.

§ 242.

MANGANESIUM _calciforme_ (manganeſe) ſimply deprived of phlogiſton. Calciform.

CRONSTEDT Min. § 114.

§ 243.

MANGANESIUM (manganeſe) mineralized by _aerial acid_.

Aerated.

CRONSTEDT Min. § 115. 1. a.