Part 28

§ 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.

APPENDIX THE FIRST.

§ 244.

In the preceding pages only the more ſimple combinations occur, whoſe principles are either chemically united or at leaſt ſo ſubtly interwoven that the texture appears perfectly homogeneous. But if two or more of theſe ſpecies, forming little diſtinct maſſes are cemented together, theſe mechanical mixtures, diſcernible by the eye ought to conſtitute a new ſeries, to be diſtinguiſhed by their component parts as the others were by their firſt principles or chemical elements. Such compoſitions may well be excluded from the preſent work, but upon account of their extenſive phyſical, œconomical and metallurgical uſes, I propoſe to give a ſlight ſketch of them here, enumerating the more remarkable Genera.

§ 245.

In a general view it appears that not only ſeveral ſpecies cemented together may be referred to this place, but likewiſe thoſe which are mechanically diffuſed in a powdery or an earthy form.

§246.

From the laws of combination it is evident, that according to the arrangement of foſſils into four claſſes, there can be only TEN Genera compoſed of two, FOUR of three, and ONE of four conſtituent parts. And although ſo many have not yet been detected, yet it is better to mention them here as the induſtry of a future age will probably diſcover more. The ſpecies are formed from the differences of the more ſimple ſpecies and their component parts.

Salts with Salts.

§ 247.