Thaumasite! A Unique Mineral! 



ONE OF THE MOST INTERESTING 

 KNOWN TO SCIENCE. 



Found last summer at "West Paterson, New Jersey," and 

 described in this number of this Journal. We have bought 

 every specimen we could find and now have a splendid 

 stock, which is being placed on sale simultaneously in 

 New York, London, Paris, Vienna and Bonn. As the 

 demand for it will doubtless quickly exhaust the small 

 supply, we earnestly recommend that orders be sent in by 

 first mail. Fibrous specimens, of best quality, price 

 dependent on size, 10c. to $10.00 (cabinet sizes, $1.00 to 

 $5.00) ; a very few crystallized specimens. $1.00 to $15.00. A full suite will 

 include associations with Heulandite, Pectolite. Apophyllite, Chabazite, Laumon- 

 tite. Unlike many rare minerals this is one that is attractive to the eye. 



BEAUTIFUL MISSOURI LEADHILLITE. 



Mr. English has just visited G-ranby and has secured, we believe, all the Lead- 

 hillite that will ever be obtainable, including one of the finest specimens ever 

 found, which the superintendent of the mine had repeatedly refused to sell. This 

 splendid specimen, 1 x 2 inches, is a group of large and brilliant, delicate green, 

 doubly terminated crystals ; price $25.00. Over 30 small groups mostly of fine 

 quality, 50c. to S5.00. Two excellent small pseudomorphs of Leadhillite after 

 Calcite, $2.50 and $5.00. 



WONDERFUL MISSOURI CALCITES. 



Mr. English is now in Missouri and has^spent two weeks in gathering together 

 what we believe will be acknowledged to be the finest and most varied collection 

 of Missouri Calcites ever formed. Numerous mines, caves, prospect holes, etc., 

 have been worked especially for the Calcites, and many local collections have 

 yielded up their richest treasures. Hundreds of dollars worth of magnificent spe- 

 cimens, are already in New York and others are en route. Mammoth crystals 

 over a foot long, neat little "gem" crystals; twins of several types doubly termi- 

 nated scalenohedrons, rare combinations in groups and single crystals. In color 

 delicate yellow predominates, but there are some gorgeous, deep wine yellows and 

 some light yellows at the top with delicate to deep purples below ; also curious 

 and exceptionally brilliant, " smoky calcites " : enclosures of marcasite and chal- 

 copvrite. Prices, of course, have a wide range and any customer can be suited: 

 5c. to $35.00. 



' GORGEOUS IRIDESCENT SPHALERITES. 



Of the finest quality conceivable, a small lot and all that is to be had, 50c to 

 $10.00. 



MAGNIFICENT JOPLIN GALENAS. 



Over 100 remarkably good groups, large and small. ' The large, brilliant crystals 

 are very attractively scattered over crystallized blende and dolomite. We may 

 . safely claim that no such collection of choice Galenas has been previously seen in 

 the east. Cabinet sizes, 25c. to $3.50; small museum groups, $2.50 to $7.50; 

 large museum groups, $10.00 to $50.00. 



MANY OTHER IMPORTANT ADDITIONS OUGHT TO BE 



MENTIONED. 

 124 pp. Illustrated Catalogue, 25c. in paper; 50c. in cloth. 

 44 pp, Illustrated Price Lists, 4c. Bulletins and Circulars Free* 



GEO. L. ENGLISH & CO., Mineralogists, 

 64 East 12th St., New York City. 



