130 PHYSIOGRAPHY. 



Chrysocolla. 



1. Before the blow-pipe, upon charcoal, it first becomes black ; and in 

 the inner flame, red, without melting. With borax, it melts into a green 

 glassy globule, and is partly reduced, as the metallic particles which 

 this globule contains, evince. If pure it is soluble in nitric acid, with- 

 out effervescence, and leaves a residue of silica. 

 2. Analysis. 



By KJLAPROTH. By JOHN. By BOWEKT, 



from N. Jersey. 

 Copper 40-00 - 42 00 > 



Oxygen 10-00 - 7-635 



Silica - 26-00 - 28-37 - 37-250 



Water 17t)0 - 17-50 - 17-000 



Carbonic acid 7-00 - 3-00 0-000 



Sulphate of lime 000 - 1-50 0-000 



3. The natural repositories of Chrysocolla are those of other ores of 

 copper, where it is found along with them, and also with Brown Iron- 

 Ore and Quartz. 



4. It occurs at Saalfield in Thuringia, at Lauterberg in the Hartz, at 

 Saska and Moldawa in the Bannat, at Herrengrund in Lower Hungary, 

 at Falkenstein and Schwatz in the Tyrol, in the Lizard district in Corn- 

 wall ; in Norway, Siberia, Mexico and Chili. In the United States, at a 

 copper mine in Sommerville, (New Jersey,) Chrysocolla is found accom- 

 panying Red Copper-Ore, Native Copper, and Green Malachite. In 

 Nova Scotia, at the Basin of Mines, associated with other ores of copper, 

 and with Brown Iron-Ore. 



CHRYSOLITE. (See Olivine.) 

 CHRYSOPRASE. (See Quartz.) 

 CHUSITE. (See Olivine.) 



ClMOLITE. 



A pearl, or reddish grey clay, tender to the feel, and falling 

 to pieces in water. It consists, according to KLAPROTH, of 

 Silica .... 63-00 



Alumina .... 23-00 



Water .... 12-00 



Oxide of iron .... 1-25 



It is not known from the decomposition of what mineral it is derived. 

 It occurs at Argentiera, (Cimolis,) an island in the Grecian Archipelago, 



