- « 
268 Scientific Intelligence. 
Pseudomorph. ’ Form imitated. 
Wernerite. Epidote. 
Talcw: .. Chiastolite, kyanite, couzeranite, 
P 
Steatite. Dalouline quartz, andalusite, chias- 
x tolite, feldspar, mica, wernerite, 
. augite. ts 
Serpentine. Spinel, mica, garnet, augite, chon- 
drodite. 
Chlorite. Feldspar, garnet. 
Stiblite. . Gray antimon 
Minium. White lead ore 
Pyromorphite. Galena, white lead ore. 
White lead ore. : Lead vitriol. 
Magnetic iron ore. pathic iron. 
Peroxyd of iron. Brown iron ore, pyrites, peta iron. 
Brown iron ore. White iron pyrites, spathic iro 
Stil pnosiderite. ivianite, 
Kupferpecherz. opper pyrites 
Kupferindig. Co yrites, 
Malachite. Copper penore gray copper ore. 
Azurite. Gray copper o 
Division II, 
Graphite. Pyrites, 
Stone salt. Dolomite. 
psum. Stone salt. 
Quartz. Heavy spar, — — calc spar, 
dolomite, gale 
Steinmark. Fluor spar. 
Pyrolusite. Dolomite. 
Stilpnosiderite. Dolomite, calamine. 
Brown iron ore. Cale spar. 
The volume sm ose with valuable details and views respecting the 
fossilization of shells a 
- On Dolo Reser by A. von Mortor, ae Abhandl. v 
W. Hatpineer, Band L Vienna, 1847.)—A. von Morlot states that as 
metamorphic nature of ‘dolomite was first siggete by Arduino 
early as 1827, W. Haidinger in an article seudomorphism m descri- 
bed certain dolomitic pseudomorphs, and ate that in their formation, 
“‘ part of the os of lime was replaced by carbonate of magne- 
sia so as to form in the new species a eeciioutd of one atom of each.”’¢ 
From this fact ‘ane other observations he inferred that dolomite origina- 
ted in asimilar change. Elie de Beaumont in 1837 suggested the same 
view, and thus accounted for the occurrence of ae mers in the dolo- 
mite, ofien amounting to twelve per cent. of the 
The association of gypsum with dolomite had renee noticed by vari- 
ous observers. Haidinger in view of this well known fact, concluded 
Re 
* Osservazioni chimiche sopra aleuni Fossili. Venezia, 1779. 
t Trans. Roy. Soc. Edinb., March 19, 1827. 
* 
