MONTANA 

 TOURMALINITIC QUARTZ. 



We have lately secured direct from the locality an unusually large and fine 

 lot of this interesting gem mineral. The occurrence was referred to in a 

 former announcement, when two small lots arrived. The present collection 

 embraces over 1200 crystals varying from 1 inch to 18 inches in length. A 

 rough stem or "core," densely coated and filled with Tourmaline needles, 

 sometimes protrudes from the end of the crystal including the most Tourma- 

 line. This would indicate an unsuccessful attempt at Quartz crystallization 

 in the presence of an excess of Tourmaline, the penetrating needles generally 

 lessening in number as the opposite and perfect end of the crystal is 

 approached. The Quartz is of the smoky variety, the inclusions giving it a. 

 greenish tinge. Excellent examples, some doubly terminated, from 1 to 3 

 inches long, 10c. to 30c. each. Cabinet specimens 50c. to $3. Museum 

 crystals at higher prices. 



Polished Cross-Sections are of exceptional beauty and interest, show- 

 ing the delicate needles branching in every direction. Some exhibit shadowy 

 hexagons concentrically arranged, indicating the crystal growth. 1£ to 4 

 inches diameter, 50c. to $4. 



AMETHYST CAPPINGS. 



In the same find are a few choice Amethyst crystallizations arranged in 

 paralleled groups, often capping the smoky Quartz in a unique manner. 50c 

 to $6 for the larger. Excellent Amethyst crystals 10c. to 30c. each. 



Send your list of Desiderata. Many acquisitions find no mention here 

 because sold before an announcement can be prepared. With the list before 

 us a gap in your collection can often be filled. 



EDUCATIONAL COLLECTIONS. 



For 26 years we have supplied mining schools, universities, colleges and 

 secondary schools throughout the world with mineralogical material. Dur- 

 ing that period the quality of our elementary and advanced collections has 

 steadily improved, so that to-day the highest grade of study specimens are 

 offered at unprecedentedly low prices. An inspection of our Laboratory 

 List will show that European minerals are sold not simply below American 

 prices, but often at lower rates than prevail in Europe. The wide connec- 

 tions of our European house alone permit this economy to the consumer, 

 our prices being the same on both sides of the Atlantic. If in Paris this 

 summer favor us with a call — 15 minutes from the Opera Quarter. 



Illustrated Collection Catalog Free. 



The Largest and Most Complete Stock of Scientific and Educational Minerals 

 in the World. Highest Awards at Nine Expositions. 



POOTE 1v£I2nTE]I3^_I-. CO., 



FORMERLY DR. A. E. FOOTE, 



PHILADELPHIA, PARIS, 



1317 Arch Street. 24 Rue du Champ de Mars. 



