
          It occurs in small amorphous masses & in miniscul-crystals. [desseminated?] in [added: granitic] [crossed out: illegible] ag=
 =gregate [crossed out: of] considting of Quartz, Albite.|, Talc. ^ [added: [crossed out: brittle] friable] Manganesian garnet, beryl, chrysoberyl.
 The amorphous masses, which are probably very imperfect crystals are ^ [added: from one forth to half an inch in diameter] of a grayish black colour
 with the surface ^ [added: always] more or less irised. ^ [added, with an encircled [N?] beneath: (It is [opake?]) Its structure is imperfectly foliated. Fractures [crossed out: im=perfectly]
 [added: somewhat] conchoidal. It is not magnetic. either before or after being heated with Charcoal.
 It is sufficiently hard to scratch glass, but not to strike fire with steel. The powder is
 [added: very] dark brown. Sp. gr. 6... Before the blowpipe it is nearly infusible. the smallest frag=
 =ment being slightly rounded on the edges.. Borax dissolves it [crossed out: though imperfectly]. ^ [crossed out: [?]
 with producing] a very slowly, [crossed out: into] fusing with it [crossed out: an almost [?]] [added: pale yellowish] glass.  [crossed out: T] A small
 quantity was fused with 6 parts of potash & one of borax. A mass of a [crossed out; illegible] deep green
 colour was obtained. [crossed out: Muratic [?] the [?]] muriatic poured on this left this left a
 white powder. [crossed out: ?] up] which from the small quantity of the [ore?] operated upon could
 not be [?] [?], but it appeared to be oxyd of columbium. The muriatic solu-
 ~tine [solution?] was found to contain [illegible] of manganese.- [encircled: [Na


 The crystals ^ [added: [crossed out: [that?]] [added: are] very minute, being seldom greater in diameter than [?] [?]. I often reach less.
 [crossed out: They are [?]] rectangular [?] with [crossed out: the surface a pretty strong lustre externally if [?]] Externally they
 have a pretty strong lustre [crossed out: [?] are] [added: The greater no. are imbedded in the friable [?] - [?] [intensified?] [?]] 
 with a tinge of metallic blue. The form of the crystal is that
 of a [crossed out:[?]] [added: [?] angular [?]. [crossed out: to] truncated upon the lateral edges_ & terminated by 4-sided pyrimids
 Sometimes the pyramid is truncated at the summit. According to Phillips the primary form appears
 to be a rectangular prism.      The following figures represent two of the crystals with
 measurements of some of the angles taklen with a reflecting goniometer _      No. 1. much resem=
 bles a figure in the last - edition of Phillips [?]. except in some minor truncations.


 If I am correct in my determination of the [next two words within a transposition symbol: Haddaw minaral] [added: [?]]. we have, perhaps a clue
 to the discovery of the long lost Columbite. [crossed out: If the original specimen [illegible] not totally [illegible].
 [illegible].] The original specimen.. is said to have been found near New London, which is
 not more than 30 miles from Haddaw, [crossed out; illegible]............ It is true, the [crossed out: only specimens] [added: [?][?] [?] [?]] [ore?]
 the latter locality [crossed out; illegible] does ^ [added: much] not ^ exceed half an in in diameter, while that in the British Museum.
 weighs several ounces, but there can be little Doubt that larger numbers will ^ [added: yet] be Discovered. [crossed out: I
 -dea I recollected having] There is another circumstance which favors the opinion of the identity of
 the newly discovered mineral a [?] analyzed by Hatebut - which is it specific gravity. The
 [crossed out; illegible] North American & [Swedish?] Columbite. were [discused?] by Dr Wollasten to
 differ very very materially in sp. gr. the former being about 5.93 - the later nearly 7.95. [crossed out : The
 [illegible]] The cause of the difference was [?] by the acute [?] to be small cavi=
 =ties in the American mineral; & in Confirmation of this opinion I would mention that the Haddam Colum=
 =bite when immersed in water column to give out [crossed out: small] ^  [added: [?]] bubbles of air for a considerable time
 after which [?] sp. Gr. were much increased.

        