47 
ides (siderotitanium of Klaproth), some varieties sai oon. 
of which may be considered as titaniferous oxides Nat . Hist 
of iron, and to which may be referred the black sand 
called menachanite, and the iserine, in loose grains 
and imbedded;—specimens of anatase, or octohe- 
drite, from Dauphine;—the same, together with 
the scarce substance called craitonite ( crichtonite ) 
by the Comte de Bournon, which is not the same 
substance as Helvine, but, according to Wollaston’s 
analysis, a silicate of titanium. 
The remainder of this table-case contains the 
ores of antimony: native antimony, from Allemont, 
and from Sala in Sweden, some varieties of which 
are arseniferous;— sulphuret of antimony , or grey 
antimony (the most common ore of this metal), oc¬ 
curs compact, foliated, radiated, and plumose: the 
more remarkable among these are the specimens of 
crystallized radiated antimony in fine groups, espe¬ 
cially from Transylvania; radiated grey antimony 
with barytes, realgar, &c.; the plumose grey anti¬ 
mony, some varieties of which, appearing like deli¬ 
cate wool or down, display a fine iridescent blue, 
yellow, and red tarnish ;—red antimony , mostly in 
fine capillary crystals, from Braunsdorf in Saxony, _ 
and a variety of the same, called tinder ore, from 
the Hartz;— white antimony, formerly considered 
as a muriate of this metal, crystallized, on galena, 
&c.—specimens of antimonial ochre on native and 
grey antimony, &c. 
(Case 
