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47 
crystals, the aggregations of acicular crystals saloon. 
called needle tin, the massive, the pebble like, n^ t "~h" ist 
and granular tin stone (shoad tin, stream tin, grain 
tin, &c.) ; and among the varieties of colour, the 
greyish white crystals resembling scheel-ore, or 
tnngstate of lime.— The ores of tungsten, which 
generally accompany those of tin, are— wolfram, 
(sch^elin ferrugineux Haiiy), crystallized and 
massive, from Bohemia, Cornwall, &c. ; and the 
scheel-ore, or tungstate of lime (scheelin calcaire 
Haiti/) 9 among the crystallized specimens of which 
is the primitive acute octohedron from Allemont 
in Dauphine, first described by M. de Bournon. 
— In this case are also placed the specimens of 
molybdena, or sulphuret of molybdenum, which 
should not be confounded with graphite : the yel- 
low powder on feldspar, from West mania in Swe- 
den, is oxide of molybdenum. 
(Case 42,) Part of this case is occupied by the 
ores of titanium, viz. the oxides, called titanite, 
brown-ore, brunon, (spheoe, and titane siliceo- 
calcaire Hauy), among the varieties of which is 
that in large flat octohedral crystals from Nor- 
way, with epidote^ &c. ; also the variety called, 
by Saussure, rayonnante en goufiiere, from St. 
Gothard, on feldspar, with chlorite, &c. — Titan- 
shorl, also called rutile ; massive, crystallized, and 
fibrous, 
