PLATINA native united to iron. Native.
Cronstedt Min. § 179.
I believe it has never been found quite free from iron, but this can be ſeparated by art[[61]].
ARGENTUM,
OR
SILVER.
Its ſpecific gravity is 10,552. The nitrous acid readily diſſolves it, the vitriolic muſt be boiling hot; the muriatic attracts its calx very ſtrongly, but cannot remove its phlogiſton and therefore cannot diſſolve it in its metallic ſtate. The quantity of this phlogiſton which cauſes the difference betwixt its metallic and its calciform ſtate I before expreſſed as 100 in 100 parts of ſilver. But the force with which it retains this portion of its phlogiſton is leſs than that of gold; that is, it occupies the third place in a ſeries of all the metals. It melts at 1000 degrees of heat.
ARGENTUM nativum (ſilver native) united to gold. Native.