90 Scientific Intelligence. 



of fine heliotype plates give representations of notable specimens, 

 for example, of the well known quartz twins, also the fine stibnite 

 and topaz crystals. Among other Japanese minerals of especial 

 interest may be mentioned crystallized danburite containing a 

 considerable amount of magnesia (767 p. c); datolite at Nobori, 

 Hyuga Pr. ; chalcopyrite of varied and unusual habit ; axinite, 

 etc. A new species, naegite, is also described, as noted below. 



7. Brief notice of some recently described Minerals — Naegite 

 is a new silicate of uranium and thorium collected with fergu- 

 sonite from the placer tin washings near Takayama, Mino province; 

 it is described by T. Wada on p. 49 of the Minerals of Japan (1904, 

 see above). It occurs in small spheroidal aggregates, also rarely 

 in small crystals of pseudo-dodecahedral habit ; these are probably 

 tetragonal and isomorphous with zircon. The color varies be- 

 tween dark pistachio-green, greenish gray and brown or reddish 

 brown; under the microscope it is transparent, grass-green and 

 highly refractive, though also often nearly isotropic. The hard- 

 ness is about 7*5 and the specific gravity 4*09 ; it has marked 

 radio-activity. An analysis by T. Tarnura afforded : 

 Si0 2 U0 2 Th0 2 Ta 2 5 Nb 2 5 Ce0 2 Fe 2 3 CaO MgO H 2 

 34-89 28-27 16-50 7'00 4-10 1-59 1-60 1-71 0'57 3-12 = 99-35 



The name is from the locality where the new mineral has been 

 found, viz. Naegi near Taka} 7 ama. 



Teallite is a new sulpho-stannate of lead from Bolivia, exact 

 locality unknown ; it is described by G. T. Prior. It occurs in 

 thin inelastic, flexible and cleavable folia showing crystals face 

 on the edges ; the angles afforded by these proved that the 

 mineral is orthorhombic and somewhat related in form to nagy- 

 agite. The hardness is 1 to 2 and the specific gravity 6*36 ; luster 

 metallic, color blackish gray, streak black. The mean of two 

 analyses gave: S 16*29, Sn 30-39, Pb 52-98, Fe 0-20 = 99-86. This 

 yields the simple formula PbSnS 2 orPbS.SnS a . Teallite is named 

 after Dr. J. J. Harris Teall, Director-General of the Geological 

 Survey of Great Britain and Ireland. 



The same author has also analyzed carefully selected samples 

 of franckeite and cylindrite, both from Poopo, Bolivia, the locality 

 from which teallite may also very probably have been derived. 

 The result is to give for franckeite the formula Pb 6 FeSn 8 Sb 2 S 14 

 or 3PbSnS 2 .Pb 2 FeSb 2 S 8 ; for cylindrite, Pb 3 FeSn 4 Sb 2 S 14 , or 

 3 PbSnS 2 .SnFeSb 2 S 8 . Min. Mag., xiv, pp. 21-27, Oct. 1904. 



Palmerite is a new hydrated phosphate of aluminium and 

 potassium described by Eugenio Casoria from a deposit of guano 

 found in a large cavern at Monte Albums near Controne, province 

 of Salerno, Italy. It occurs in a white, amorphous pulverulent 

 form, unctuous to the touch and resembling purified kaolin. An 

 analysis yielded : 



P 2 6 5 A1 2 3 K a O Na 2 H 2 O(100°) ign. Fe 2 3 NH 3 Si0 2 



37-10 22-89 8-04 00*3 7-87 21-29 1-17 061 0-37=99-37 



The calculated formula is HK 2 A1 2 (P() 4 ) 3 + 7H 2 0. Att. Accad. 

 Georgofile(5), i, July 3, 1904. 



