MINERALOGY. 463 



color and strong pleochroism bas been noted at a number of localities 

 since its original discovery, near Lyons ; these are Brignais, depart- 

 ment of tbe lilione, France; Wolfsban, in Silesia; nearTvedestrand, in 

 Norway; Harlem, New York, and Clip, Yuma County, Arizona. Tbe 

 equally rare mineral bertrandite, a beryllium silicate, first found near 

 Nantes, bas since been identified at Pisek, Bohemia, by Scharizer,i and 

 in Colorado with the beryl and pheuacite of Mount Antero by Penfield.^ 

 This last occurrence of pbenacite deserves special note, since it 

 bas added materially to our knowledge of the species as noted before. 

 Another new locality of ])benacite bas also been discovered in the region 

 of. Stoneham, Maine,^ a few miles west, just across the State line in 

 New Hampshire, in North Chatham. 



Lavenite, a mineral recently (18S5) described, from the island Laven, 

 on tbe Norwegian coast, has been identified at several widely separated 

 localities, thus in the elteolite syenite of Brazil, and the foyaite of West 

 Africa. Attention bas been called by Judd* to tbe occurrence of leucite 

 in Australia, and G. H. Williams"^ shows that tbe rare calcium titanate 

 perofskite occurs in the serpentine of Syracuse, New York. Kunz^ de- 

 scribes a variety of oligoclase remarkable for its glassy transparent char- 

 acter; it is from Bakersville, North Carolina. It has been analyzed by 

 Clarke, and later by Penfield,''^ and tbe latter finds further that it is ab- 

 normal in its optical character, giving an extinction angle on tbe base of 

 + 40O instead of + 1. 



The Mammoth mine, Utah, has recently afforded a series of rare copper 

 arseniates, most of which bad not before been known from this country 

 These were first noted by Eicbard Pearce, and since have been described 

 hy Hillebrand^ on the chemical, and Washington on the physical side. 

 Among the species identified areolivenite, clinoclasite, pharmacosiderite, 

 mixite, eriuite, tyrolite, chalcoph\ llite, brochantite, scorodite. Scorodito 

 is also shown by Hague^ to be a hot spring deposit in the Yellowstone 

 Park. 



Crystals of rhodochrosite, of a beautiful pink color, and perfectly 

 transparent, have been obtained from tbe John Reed mine. Lake County, 

 Colorado ; it is perhaps the finest occurrence of the si)ecies. Tbe western 

 United States have also recently yielded fine specimens of azurite, 

 cuprite, malachite, vanadinite, wulfenite, from Arizona; hanksite, cole- 

 mauite, trona, from California, and many others. 



The recent demand for some of tbe rare chemical elements for technical 

 purposes has led to tbe discovery that tbe supposed relatively rare 

 minerals, zircon and monazite, occur on a large scale in the rocks and 

 soil of North Carolina. During six months in 1887-1888, no less than 25 



1 Zeitschr. Kryst., vol. xiv, 3\i. ] ^ Amer. Jonr. Sci., vol. xxxiv, p. 137. 



'^Aiiior. Jonrn. Sci., vol. xxxvi, 52. | " Anier. .Tour. Sci., vol. xxxvi, 222. 



^Kiinz, Amer. Journ. Sci., vol. xxxA'i, | ^ i&iVZ., p. 324. 



222, 472. i •''Amer. Jonr. Sci., vol. xxxv,298. 



••Miu. Mag., vol. vii, 194. I « Ibid, vol, xxxiv, 171. 



