MINERALOGY. 468 



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

 since its ori^j^inal discovery, near Lyons ; these are IJrignais, depart- 

 ment of tbe ivlione, France; WoH'sliau, in Silesia; nearTvedestrand, in 

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

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

 Nantes, has since been identified at Pisok, LJoheniia, by Scharizer,' and 

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

 This last occurrence of phenacite deserves special note, since it 

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

 Another new locality of phenacite has also been discovered in the region 

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

 New Hampshire, in North Chatham. 



Liiveuite, a mineral recently (18"^5) described, from the island Laven, 

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

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

 Africa. Attention has been called by Judd^ to the occurrence of leucite 

 in Australia, and G. H. Williams-^ shows that the rare calcium titanate 

 perofskite occurs in the serpentine of Syracuse, New Y'ork. 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 the latter finds further that it is ab- 

 nornuil in its optical character, giving an extinction angle on the base of 

 + 40° instead of -f 1. 



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

 aiseniates, most of which had not before been known from this country 

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

 by Hillebrand^ on the chemical, and Washington on the phj'sical side. 

 Among" the species identified are olivenite,clinoclasite,pharmacosiderite, 

 mixite, erinite, tyrolite, chahjophyllite, brochantite, scorodite. Scorodite 

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

 Park. 



Crystals of rhodochrosite, of a beautiful pink color, and i)eifectly 

 transparent, have, been obtained from the John Keed mine. Lake County, 

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

 United States have also recently yielded fine specimens of azurite, 

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

 manite, trona, from California, and many others. 



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

 purposes has led to the discovery that the supposed relatively rare 

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

 soil of North Carolina. During six months in 1887-1 8SS, no less than 25 



1 Zeitschr. Kryst., vol. xiv, 33, I '^ Amer. Jonr. Sci., vol. xxxiv, p. 137. 



"Arucr. Journ. Sci., vol. xxxvi, 52. j •' Ainer. Jonr. Sci., vol. xxxvi, 2'J2. 



" Kmiz, Amer. Joiirii. Sci., vol. xxxvi, , '' Ibid., i>. '324. 



222,472. j sAmer. Jour. Sci., vol. xxxv,2;)». 



■•Mill. Mag., vol. \ii, VJ4. I « Ibid, vol. xxxiv, 171. 



