American Mineralogist, Volume 62, pages 173-176, 1977 NEW MINERAL NAMES* MrcHlrI- Fr-BlscHrnAND J. A. MeNnn'ntNo and Institute Agrellite* Museum of Canada, Geological Survey of Canada, for the Mineralogy, Geochemistryand Crystal Chemistry of the J. GrrrrNs, M. G. BowN .qNoB. D. Srunlt.ltt (1976)Agrellite, a Rare Elements(Moscow). J. A. M. new rock-forming mineral in regionally metamorphosed agpaitic alkafic rocks Can. Mineral. 14, 120-126. Fedorovskite+ The mineral occurs as lensesand pods in mafic gneissescom- posed of albite, microcline, alkalic amphibole, aegirine-augite, S. V. MeltNro, D P SsrsurlN and K V. YunrtN'l (1976) eudialyte,and nepheline.Other mineralspresent are: hiortdahlite, Fedorovskite,a new boron mineral,and the isomorphousseries other members of the w<ihleritegroup, mosandrite, miserite, brith- roweite-fedorovskite olite, vlasovite, calcite, fluorite, clinohumite, norbergite, zircon, Zap. Vses Mineral- O'uo 105,71-85 (in Russian)' biotite, phlogopite, galena, and a new unnamed mineral, CaZr- SirO, [seeabstract in Am. Mineral 61, 178-179 (1976)]. The local- ity is on the Kipawa River, Villedieu Township, T6miscamingue County, Quebei, Canada, at about Lat.46" 4'7' 49" N, and Long 78" 29'3l" W (Note by J.A.M.: The Lat. and Long. figuresare interchangedin the paper,and the figurefor the latitudeshould be 46" not 45" ) Agrellite occurs as crystals up to 100 mm in length. They are HCI elongatedparallel to [001] and are flattened on either {010} or X-ray powder data are given for the first 3 samplesanalyzed For { I l0} The color is white to greyishor greenishwhite The lusteron sample(Mg*Mn.u), the strongestlines (41 given) are 3'92 cleavagesis pearly. Cleavagesparallel to {110) and {ll0} are ex- the third r0 20t.3.027 202,2.5sr0 042,2.286322,2.1t97 043, t 6931324' cellent;parallel to {010}it is poor Hardnessis 5}; sp gr (meas) is to a unit cell with a8'96 +o'O2 b 13'15 2 902 and(calc.) 2.887. Agrellite is biaxial negativewith a = 1.567' 1.6307244; corresponding - + 0.02, c 8.15 + 0.01A. All dimensionsof the unit cell decrease ft = 1.579,'y= 1.581,'y a = 0'Ol4,2V: 47o.Orientation is with decreasing Mn content. Orthorhombic, spacegtotp Pbam' defined by the following @and p anglesfor thesedirections: i (010) occurs with sakhaite' with frolovite and uralbor- 0o and 90o, / (1 l0) 66" and 90o, / (Il0) 106' and 90", X 274" and The mineral veinlets' and with datolite in gar- 88', y 184' and 84', and Z 23o and 6'. (The optic axial plane is ite. as monomineralic skarns Commonly fibrous Color brown' almostparallel to l0l0l.) net-vesuvianite-svabite The mineral is triclinic witha : 7.'7'13,b= 18942,c = 6.9844,a ^y : = 90.148',P : I 16.84", :94.145", V 914 5hs,laniceP, Z: 4 Data are alsogiven for a pseudomonoclinictrue celland subcell. Strongest lines in the x-ray powder diffraction pattern are: 3 44 S 200. 1 50.3 33 S 220, 3.l9 VS t 50,05 t, 3.l4 VS 220,060, 202,002, to bright yellow' and2.58A S BI , no. X colorless to pale yellow, Z yellow for Nikolai Mikhailovich Fedorov (1886-1956)' One electron microprobe and two wet-chemical analyses were The name is All-Union ResearchInstitute of Mineral performed. A "most probable" composition based on these analy- former director of the Type material is at the MineralogicalMuseum, Acad- ses is: SiO, 58 83, TiOr 0.0l, Alros 0.10, Fe,Os0.11, MnO 0.25' Resources. USSR, Moscow. M' F. CaO 25.70, SrO 0.16, BaO 0.06, MgO 0.02, ZrOz0.t8, (RE),O3 emy of Science, 3.84,Na,O 7.90,K,O 0 22,H,O+ 0 4,F 4.45,toral 102.23,lessO = F 1.87, total 100.36weight percent. The formula derived from Krutovite* thesedata is: (NanouKo or) (Ca7,oREo or) (M n,Fe,Sr,Ba,ME,Zt)o ,o L I (Si156rAlo os)Oa, ?o[Fe ?3(OH)o ?,] or, ideally: NaCarSio0'oF(Note by R A. VtNocnnpove, N. S' Ruolsnevsrrr, I. A. Buo'ro, J.A.M.: The theoretical analysisfor this composition is: NarO BocHEK. P Ka.sp,qn.tNu K Peoru (1976) Krutovite, a new 7.86,CaO 28.43,SiO, 6092,F 4 82, total 102.03,less O = F 2.03' cubic nickel diarsenide. Zap' Vses. Mineral' O'uo l95' 59-71 total 100.00weight percent). (in Russian) The mineral is named for Dr. Stuart O. Agrell, University of M icroprobe analyses(63 | ) were made of 2 samples,giving (range Cambridge. Type specimens are preserved at: University of To- and averagefor each sample):Ni 23'5-26.7,25.0:25.8-28'5'26"1; ronto, Royal Ontario Museum, SmithsonianInstitution, Univer- Co 0.12-0.43,0.221 0.18-0.43, 0.30; Fe 0.09-0.41,0.15; 0'12-0'50' sity of Cambridge, British Museum (Natural History), National 0.2f: Cu 060-1.13, 0.86; 0.77-0.97,0.85; As 72'0-74'4,73'4; 70.3-73.1,71.9;S 0.02-0.18,0.09; 0.06-0'34'0.15; ratio (As * Ni,-'As, (x : 0-0.1)' Etching * Minerals marked with an asterisk after the name were ap- S),/totalmetals 2.21, 2.02, formula spot with iridescent proved before publication by the Commission on New Minerals with HNOg (l:l) gave a dark brownish-gray and HgClz did not react' and Mineral Names of the International Mineralogical Associa- borders. KOH, HCl, FeCls, (samplel)' 5.786+ .0024 (sample tron, Cubic, P2'3, a 5J194t.002A t73 t74 NEW MINERAL NAMES 2) Thestrongest lines (22 given) for sample I are2.g976 2A0,2.593 Alan Kulan of Ross River, Yukon Territory, who supplied the l0 2r0, 2.3658 2r t , | .746 I 31r , | .5486 32r , 1.0246 t 40. material.J. A, M, Color grayish-white,somewhat paler than the associatednickel skutterudite,luster metallic. In polishedsection in reflectedlight, bright white with a rose tint comparedto nickelskutterudite. Tvalchrelidzeite* Reflectancesfor the 2 samplesare given at l8 wavelengths from V. S.Gnuzonv, N. M. McueolrsHvrLr,G.A. Trneruovt,Z.ye. 440to | 100nm; 460,65.4, 64.7 ; 540,64.7, 65.0; 580, 65.7, 65.8; 660, Tsenrsvnozr, N. M. CnenNrrsovA AND N. G. Suutxove 66.8,66.3; 780,66.8, 66.0 percent. H (av.) 63], 624kglsq mm (1975)Tvalchrelidzeite, Hg,,(Sb,As)"S,u, a new mineral from the (:5.5 Mohs). Gomi arsenic-antimony-mercury deposit, Caucasus. Doklady Krutovite occurs in ore from the Geshibervein, Jachymov, Akad. Nauk.S.S.SR,225, 9l l-913 (in Russian). Czechoslovakia,as grainsup to 0..1 mm., usuallyin closeinter- growthwith nickelskutterudite, also with tennantite.It hasalso Anafysis by N.G.S. gave Hg 64.6O,64.94; Sb 14.32,14.12; As been found in samplesof arsenidesfrom the Khomahs deoosit. 7.60,7 75: S 12.83,12.7[, sum 99.35,99.52percent, corresponding TuvaASSR to Hg,r(Sbn."As, ,6)S,. and Hgrr(SbnroAsr r.)S,n ur. Spectro- ", The nameis for GeorgiAlekseevich Krutov, professorof miner- graphic analysisshowed Ag, Pb, Cu 0.001-0.01percent. Insoluble alogy, Moscow GosudarstUniversity, for his studiesof Ni-Co in solutions of alkali sulfides. Etch tests with standard reagents deposits.Type materialis in the MineralogicalMuseum of the gave no positiveresults. Academyof Science,Moscow, the Mining Institute,Leningrad, X-ray powder data (57 lines), unfiltered Fe-radiation, are given, and theNational Museum, Prague. M. F. the strongestlines being 3.49 100 210, 3.29 1t 204,2.92 100 0t4, 2 98 100 310, 400,2.080 100 i22. These are indexed on a mono- cline cefl with d ll.5l + 0.O1,, 4.39 r 0.02, c 14.62* 0.06A, B 92.14.. The mineral occurs in granular aggregates,without Kulanite* well-formed crystals. Cleavage perfect in one direction, fracture uneven and J. A. MeNolnlNo ANDB. D. Srunrrlnr.r(1976) Kutanite, a new conchoidal. H 143-220, av. 172kg/sq nm : somewhat lessthan 3, bariumiron aluminumphosphate from the yukon Territorv. Mohs. Sp gr 7.38 f 0.005. Color lead-gray,streak nearly black Canada.Can. Mineral.14, lZ7-131. with a dark reddishtint. Luster adamantine.A poor conductor of electricity. Polisheswell The mineral occurs as blue to green plates and rosette-like In transmitted light, dark cherry-red, translucent. In reflected aggregatesin a sideriticiron-formation in the northeasternportion light bright, on R, white to grayish-whitewith a very weak lilac of the Yukon Territory(at approximately6g"34,N, 136.50,W), tint, on Rs a distinctly greenish tint Bireffectancedistinct, strong Canada.The plates are tabular parallel to {i0l}. Thehardness is4, dark-red internal reflections. Anisotropic, with color effects from streakis very palegreen, and thereare two fair to good cleavages dark olive to dark violet. parallelto {010}and {100}.The density(Berman balance) is 3.91 Reflectancesare given at 12 wave lengths (440-660 nm): g/cm3;the density calculated from the analysisand cellparameters is 3.92 g/cms. The mineral is transparentto translucent,has a 460 540 580 640 vitreousluster, and is non-fluorescent.Kulanite is biaxial(*), a = Rl 40.0 39.5 36.7 33.5 1.703,13 : I 705,1 = 1.723,2V (meas.): 32', 2V (calc.)= 38", R; 41.6 36.7 34.7 32.6 birefringence: 0.020.Dispersion is verystrong with r )) u. The The mineral occursin the Comi deposit,Georgian opticalorientation is: b = A, c A ? = -8o. An opticaxis is almost SSR,associated with cinnabar, metacinnabar, normalto {I0l}.