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more compact fibrous variety, often zoned with pink, found at Cape 

 Split and elsewhere on the Bay, will sometimes cut into neat and pretty 

 gems. 



Thojnsoniie is reported to have been found on the Bay of Fundy, 

 in N.S., but these speciir.ens are considered by some authors to be a 

 variety of Mesotype. The pretty little pebbles of Thomsonile that are 

 brought from Lake Superior, are really from the State of Minnesota, at 

 a pkce called Grand Marais. They occur as pebbles in the Amygda- 

 loid, and are often beautifully variegated with ^uch colours as flesh red, 

 zoned and mottled with green, red, brown and white, and when per.ect- 

 ]y free from holes, make very handsome gems. 



Apatite, which is de^^tined to become the backbone of the Ottawa 

 Valley, cannot be left altogether out of this category. If we have not 

 yet found any material Irom which gems or ornaments may be cut ; 

 and though we have ?een during the past few years so many different varie- 

 ties developed, we may si ill look forward lo better results in the fuiure, 

 and possibl)- some of the m ma)' yet yield a more compact variety suit 

 able for this purpose. I have seen both yellow and blue transparent 

 crystals, but too small fur cutting, from the Township of Wakefield. 



Since writing the above, some fine olive green transparent gems 

 have been cut from this m-neral from Portland. 



Apophyllite, sometimes called Fish-eye Stone, (this name is also 

 applied occasionally to Adularia,) is met with at several places on the 

 Bay of Fundy, the more noticeable of which, for gem purposes, is on 

 tl.e Blomidon shore, where it occurs in greenish-white, semi-transparent 

 to translucent crystals often an inch across. On the other side of the 

 Bay, at Cape D'Or, large modified white crystals, two inches in diameter 

 are found. These are however, perfectly opaque and unfit for cutting. 

 This mineral also occurs at Lake Superior, of a reddish colour, but of 

 no value as a gem. 



^/2/^;r. — Derbyshire Spar, or Blue John, as it is sometimes called, 

 has been employed extensively in England for the last century, and 

 even to-d;iy there are more manutactories of this material in Derby 

 than anywhere e'se, engaged in making such ornaments as vases, cups, 

 plates, candlesticks, etc. The variety from which the above articles are 

 made occurs in compact and granular masses of some shades of blue, 



