gallery.] natural history. (Minerals.) 75 
titanate of lime, called sphene or titanite, and, among these, the varieties 
formerly designated by the name of brown and yellow menakanite, in 
large crystals, from Arendal in Norway; the variety from St. Gothard, 
called rayonnante en gouttiere by Saussure, on feldspar with 
chlorite, &c. ;—the polymignite , found in the zircon-syenite of 
Fredricsvarn in Norway, and composed chiefly of the titanates of 
zirconia and yttria; also the ceschynite from the lake Ilmen near Miask, 
being a titanate of zirconia and oxide of cerium ;—the cerstedtite , a tita¬ 
nate of zirconia with lime, magnesia and protoxide of iron, from Aren¬ 
dal ;—the mosandrite , from the same locality, being a silico-titanate 
of Iantane, manganese, &c. ; the yttrotitanite or keilhauite ;—the 
greenovite (sphene coloured by manganese), from St. Marcel, Pied¬ 
mont;—and lastly the iron titanites, variously combined with the prot¬ 
oxide of that metal, in many of those varieties of volcanic and other 
specular iron which exhibit a glassy fracture, as likewise in the minerals 
known by the names of axotomous iron or kibdelophane , crightonite , 
menacanite , nigrine , iserine, ilmenite, &e. 
Case 38. In this Table Case (besides the silicates containing 
yttria and protoxide of cerium, mentioned in the description of Case 
*37) are placed the following orders of minerals. 
Combinations of columbic or tantalic acid with protoxides of iron, 
manganese, lime, yttria, zirconia, &c.: among the columbates or tan- 
talates here deposited, may be pointed out the specimen of tantalite 
(columbite) sent by Gov. Winthrop, from North America, to Sir Hans 
Sloane, in which Mr. Hatchett, in 1801, discovered the metal denomi¬ 
nated by him columbium, but which, eight or nine years later, was sup¬ 
posed by Dr. Wollaston to be identical with the metal found nearly 
about the same time, by Eckeberg, who had called it tantalum: a 
name that had become familiar to continental chemists and mineralo¬ 
gists, and was therefore retained by them;—the same from Raben- 
stein in Bavaria, accompanied by crystallized beryl and uranite *; 
—the Finbo- and the Brodbo-tantalites of Berzelius;—the yttro - 
tantalite , from Ytterby, the uranotantalite of G. Rose, from Miask, 
Siberia;—the microlite of Shepard, the wohlerite of Scheerer, and 
some other new mineral substances related to them, but which all 
stand in need of ulterior chemical examination. 
Oxides of antimony:— antimony-ochre on native and grey antimony; 
—several varieties of the scarce white antimony , from Przibram in Bo¬ 
hemia, on galena, quartz, &c. ;— red antimony , also called antimony- 
blende and kermes, (a combination of oxide and sulphuret of this 
metal,) mostly in fine capillary crystals, from Braunsdorf in Saxony, 
Malazka in Hungary ; a so-called argentiferous variety from the Hartz, 
in fibrous flakes resembling tinder, ( zunderertz , tinder ore) is a mixture 
of this with other sulphurets. 
Tungstates :— tungstate of lime (scheelin calcaire of Haliy), also called 
scheelite and tungsten (heavy stone), among the more interesting speci¬ 
mens of w T hich are the primitive acute octahedron from Allemont in 
Dauphiny, and the group of very large crystals from Schlackenwald in 
* Since H. Rose’s discovery of the niobic (which had been taken for tantalic) 
acid, the name of columbite has been restored to the above American and Bavarian 
minerals. 
E 2 
