Ixxxvi GENERAL SUMMARY OF SCIENTIFIC AND 



ume of the Record^ have been further developed during the year, and 

 yielded many fine specimens. Of new occurrences of some interest 

 may be mentioned the staurolite crystals of Fannin Co., Georgia ; 

 tlie pyrrhotite of Elizabethtown, Ontario ; the quartz and rutile of 

 White Plains, North Carolina, the former very fine in color and trans- 

 parency ; the columbite from Standish, Maine ; sphene from Bridge- 

 water Station, Pennsylvania, and so on. 



As the tellurium minerals of this country have exerted a good deal 

 of interest of late years, it is worth noting that some tellurium com- 

 pounds (hessite, altaite) have been discovered by Domeyko in Chili. 



NEW MINERAL SPECIES. 

 The energy of mineralogists during the past year seems to have 

 been especially directed to the discovery of new species, for the num- 

 ber of new names introduced into the vocabulary of the science is 

 very large. It is probable, however, that some of the newly made 

 species may not have a very long existence. The following is the 

 list of species announced as new : 



Achrematite. A mol3^bdo-arsenate of lead, of a yellow color, and 

 indistinct crystalline structure. The locality is Guanacerg, Chihua- 

 hua, Mexico. Described by Professor J. W. Mallet. 



Aerinite. Essentially a hydrous silicate of iron and aluminum, 

 characterized by its intense azure-blue color. The structure is mass- 

 ive and earthy. It forms the paste which binds together fragments 

 of quartz, chrysolite, feldspar, and augite, and has probably itself 

 arisen from the decomposition of other silicates. Locality, Spain. 



Calcozincite. A doubtful mineral containing zinc, calcium, water, 

 and carbonic acid. Massive ; color, orange-red. Sterling Hill, N. J. 



Ouprocalcite. A basic carbonate of copper and calcium, some- 

 what allied to malachite, but having an intense vermilion-red color. 

 Occurs in small massive fragments in carbonate of calcium. From 

 the mines of Canza, in Peru. 



GlinoJiumite. The third type of humite. (See above.) 



Daiibreellte. Proto- sulphide of chromium, occurring as a coating 

 of triolite nodules in the meteoric irons of Northern Mexico. De- 

 scribed by Professor J. Lawrence Smith. 



Dmihreite. An oxychloride of bismuth, from the Constancia Mine, 

 in Bolivia. Amorphous, structure somewhat fil^rous ; the color yel- 

 low and yellowish gray. Specific gravity 6.5, and hardness 2.5 

 (Domeyko). Both this and the preceding species named for ]\I. 

 Daubree, of Paris. 



Euclilorite. A silicate of iron and magnesium. Occurs in coarse 

 scales, with a light olive-green color. Distinctive characters, want- 

 ing. Chester, Mass. 



FriedeUte. A hydrous manganese silicate, allied to hydrotephroite. 

 Occurs in hexagonal plates and in granular masses ; color, rose-red. 



