PRECIOUS OPALS 



Gorgeous Matrix Specimens at Uuprecedent- 

 edly Low Prices. 



A large collection of this beautiful and popular stone, purchased by our Aus- 

 tralian collector, was opened for sale May 1st. A description of so well known a 

 gem seems almost unnecessary, but the purchase of a specimen will explain the 

 use of superlatives in referring to it. Of few things is it as easy to say " finest," 

 as of the happily named Noble Opal. An exquisite play of delicate colors, or 

 perhaps bolder and grander flashes of varied lights, spread showily over a broad 

 surface of rock, have won a reputation for this gem among all others. The 

 prominent colors are green and blue, with splashes of red and purple. Often the 

 opal has considerable depth, yielding gem material of the first quality. There is 

 no "washed out" look about such specimens. They present a natural display of 

 combined and brilliant color, in varied changes, that are alike the despair of artist 

 and counterfeiter. 



The Queensland opals come from mines in the Bulla Creek district, which have 

 for several years produced a large proportion of the world's supply. They occur 

 in a brown limonite matrix which is often of a flinty texture, serving as a sombre 

 but excellent setting. Our present prices are. most reasonable, barely covering 

 the actual gem value. The best generally range from 1 to 2 inches diameter, 

 and are priced at $2.00 to $8.00. A few at $10.00 to $15.00, including polished 

 specimens of unusual beauty. Gem fragments and pieces of matrix showing 

 charming bits of color, as low as 15c. to $1.50. They are infinitely superior to the 

 Mexican, and should be in every collection. A good stock of cut opals, 50c. to 

 $8.00 per carat. 



CROCOITE. 



NEW CONSIGNMENT. 50 PER CENT. REDUCTION. 



Our introduction during the past year, of this rare and showy crystallization, 

 has met with phenomenal success. The first stock of good specimens was about 

 exhausted, but is replenished by a small series just received. Although an old 

 find they were but recently bought in by our collector, and at such terms as 

 enable us to cut former rates in half. GTorgeous orange-red masses of crystals ; 

 ferromanganese with lustrous and perfectly terminated crystals of varied habits, 

 at $1.00 to $4.00. Several at $5.00 to $8.00. Detached crystals and small 

 matrix specimens, 15c. to 75c. Pure crystal fragments, 50c. per oz. 



Mesolite, Phacolite, Phillipsite, Ferrocalcite, Aragonite and other 

 minerals from the Collingwood Quarries, near Melbourne, reached us in the same 

 consignment. See Catalogue. 



Many other New Arrivals are mentioned in our 16 pp. Illustrated Supple- 

 ment, including Crystal and Pound Material addenda lists, New Species, Traut- 

 wine Collection, etc.. etc , mailed free. 



Illustrated Collection Catalogue, 64 pp. Prospectors and educational 

 sets. Free. 



Illustrated Catalogue of Cabinet Specimens, 126 pp. Free. 



m- MINERALS PURCHASED. 



WARREN M. FOOTE, Manager. 



Minerals for Scientific and Educational Purposes. 



1317 Arch Street, Philadelphia, Pa., U. S. A. 



Established 1876. 



