I. Whiteite, a new species, and a proposed nomenclature for the jahnsite-whiteite complex series. II. New data on xanthoxenite. III. Salmonsite discredited

1978 ◽  
Vol 42 (323) ◽  
pp. 309-323 ◽  
Author(s):  
Paul Brian Moore ◽  
Jun Ito

SummaryWhiteite, Ca(Fe,Mn)2+Mg2Al2(OH)2 (H2O)8[PO4]4, a 14·90(4) Å, b 6·98(2) Å, c 10·13(2) Å, β 113° 07(10)′, Z = 2, space group P2/a, α 1·580(5), β 1·585(5), γ 1·590(5), 2V 40–50°, specific gravity 2·58, is a new species from the Ilha de Taquaral, Minas Gerais, Brazil. It is the Al3+-analogue of jahnsite. The mineral occurs as up to 5 mm tan crystals flattened on {001}. Twinning by reflection on {001} leads to pseudoorthorhombic development. Rather pure material also occurs from Blow River, Yukon Territory, Canada.For the general formula XM(1)M(2)2M(3)2(OH)2 (H2O)8[PO4]4, it is proposed that for M(3), Al3+ > Fe3+, the established members of the series are whiteite—(CaFe2+Mg) and whiteite—(Mn2+Fe2+Mg); and for Fe3+ > Al3+, jahnsite—(CaMn2+Mg), jahnsite—(CaMn2+Fe2+), and possibly jahnsite—(Mn2+Mn2+Mn2+).Xanthoxenite of Laubmann and Steinmetz (1920) is probably stewartite (in part) on the basis of morphological, optical, physical, and paragenetic evidence. The xanthoxenite of Frondel (1949) is proposed as the species type. It is triclinic, P or P1, a 6·70(4) Å, b8·85(4) Å, c 6·54(3) Å, α 92·1(2)°, β 110·2(2)°, γ 93·2(2)°, Z = 1 for composition .Salmonsite, c. from Pala, California, is shown to be an intimate mixture of hureaulite and jahnsite on the basis of calculated and observed powder patterns and on reinterpretation of the original chemical analysis published by Schaller (1912). It is a breakdown product resulting from oxidation of Fe2+ in the original hureaulite (‘palaite’) along with further aquation followed by fine-grained recrystallization. The reaction proposed is:

1979 ◽  
Vol 43 (327) ◽  
pp. 325-331 ◽  
Author(s):  
Paul B. Moore ◽  
Jun Ito ◽  
Ian M. Steele

SummaryMacFallite, Ca2(Mn3+,Al)3(OH)3[SiO4] [Si2O7], is a new species occurring with manganite, braunite, orientite and pyrolusite blebs, stringers, and framboidal aggregates, which replace calcite in fissures and lenses in Keweenaw basalt near Manganese Lake, Copper Harbor, Keweenaw County, Michigan. It is rich reddish brown to maroon in coarse aggregates; compact massive material is brown to dull pink. The streak and powder are brown with a reddish tint. Lustre silky to subadamantine, specific gravity 3.43(2), hardness 5+, cleavage {001} perfect; twinning by reflection on {100} is universal. The mineral is monoclinic, space group P21, or P21/m, Z = 2, a 8.929(6), b 6.045(5), c 10.905(7) Å, β 119.10(3)°, α 1.773(5), β 1.795(5), γ 1.815(5), sign + or −, pleochroism α yellow, β light brown, γ dark brown, γ‖b. Orientite, Ca2Mn 2+ (OH)4[Si3O10]-Ca2 (OH)2[Si3O10] ·2H2O, orthorhombic, space group Cc2m, Ccm21or Ccmm, a 9.042(4), b 6.090(2), c 18.990(7) Å, α 1.765(5), β 1.79(1), γ 1.81(1), sign + or −, α brownish yellow, β reddish brown, γ deep brownish red, α‖a, γ‖b, also occurs in moderate abundance. It is turbid chocolate brown in platy masses but crystals are transparent rich reddish brown. Streak and powder brown. Observed forms are m{110}, c{001}, and poorly developed to absent α{100}, thin to thick tabular parallel to {001}, cleavage (or parting) {001} perfect, specific gravity 3.33.A fumarolic origin is proposed for the assemblage, which in many respects is similar to the great manganese oxide deposits in Oriente Province, Cuba. Macfallite appears to be structurally related to pumpellyite while orientite is apparently related to ardennite.


Zootaxa ◽  
2012 ◽  
Vol 3597 (1) ◽  
pp. 41
Author(s):  
VIMALANATHAN ARUN PRASANNA ◽  
SANKARAPPAN ANBALAGAN ◽  
JEYARAJ PANDIARAJAN ◽  
SUNDARAM DINAKARAN ◽  
MUTHUKALINGAN KRISHNAN

Gryllotalpa krishnani new species (type locality: Tiruchirappalli, India) (Orthoptera: Gryllotalpidae) is described from male, female adults and nymphs. This species is found in the wet soil (10-15cm depth) near to kitchen waste dumping area.


1983 ◽  
Vol 47 (344) ◽  
pp. 387-389 ◽  
Author(s):  
Pete J. Dunn ◽  
Peter B. Leavens

AbstractBostwickite, CaMn63+Si3O16-7H2O, is a new species from the Franklin Mine, Franklin, New Jersey. Chemical analysis yielded MgO 0.9, CaO 5.1, Mn2O3 56.3, Fe2O3 0.5, Al2O3 1.0, As2O5 1.0, SiO2 20.1, H2O [15.1], sum = 100.0%. This yields (Ca0.76Mg0.19)Σ0.95(Mn5.973+Fe0.053+)Σ6.02(Si2.80Al0.16As0.075+)Σ6.02(Si2.80Al0.16AS5+0.07)Σ3.03O16·7.01H2O, corresponding to the idealized formula. The strongest lines in the X-ray powder diffraction pattern are (d, I): 11.3, 100; 3.548, 30; 2.898, 30; 2.567, 40; 2.262, 25; 2.238, 25; 1.470, 25. Bostwickite is dark red in colour; hardness c. 1 (Mohs'); density (meas.)= 2.93 g/cm3. It occurs in radial aggregates of acicular compound crystals. Optically, bostwickite is biaxial negative with 2Vα = 25deg; α = 1.775, Β = 1.798, γ = 1.800;, dispersion strong, r > v; strongly pleochroic with α = β redbrown, γ = yellow-brown; absorption is α = β = γ. Bostwickite is named in honour of Richard C. Bostwick, collector and compiler of data on the minerals of Franklin and Sterling Hill.


2008 ◽  
Vol 140 (5) ◽  
pp. 557-562 ◽  
Author(s):  
Stéphanie Boucher

AbstractCerodontha (Icteromyza) pilosan. sp. is described from the Yukon Territory. The Palaearctic species C. (I.) lineella (Zetterstedt) is recorded for the first time in North America, based on specimens from northern Canada and Alaska, and C. (I.) pollinosa (Melander) is synonymized with C. lineella. Cerodontha pilosa is most similar to C. (I.) longipennis (Loew) and C. (I.) lineella. Distinguishing characters and a modification of Spencer’s key to Canadian species of Cerodontha are given to separate these species.


Zootaxa ◽  
2020 ◽  
Vol 4718 (3) ◽  
pp. 447-450
Author(s):  
JEFFREY M. CUMMING ◽  
SCOTT E. BROOKS

The Nearctic genus Philetus Melander, 1928 is a rarely collected group of empidid flies that contains two western species, namely P. memorandus Melander and P. schizophorus Melander. The genus was fully diagnosed by Cumming et al. (2016) with both known species redescribed and their distributions mapped. Here we describe a third species of Philetus from a single male collected recently in the Richardson Mountains of the Yukon Territory in Canada and provide a key to species based on male morphology. Terms used for adult structures follow those of Cumming & Wood (2017) and methods follow those outlined in Cumming et al. (2016). 


1978 ◽  
Vol 42 (321) ◽  
pp. 133-136 ◽  
Author(s):  
Paul Brian Moore

SummaryManganhumite, orthorhombic, a 10·54(1), b 21·45(2), c 4·822(9) Å, space group Pnma, Z = 4, (Mn0·68Mg0·30Fe0·01Ca0·01)7(OH)2(SiO4)3, is the manganese analogue of humite whose type locality is the Brattfors mine, Nordmark, Province of Värmland, Sweden. It is a skarn assemblage mineral and occurs with katoptrite, manganostibite, magnussonite, galaxite, etc., which replace manganosite grains in magnetite-manganosite ore.The mineral is biaxial (+), α = 1·707(3), β = 1·712(3), 7 = 1·732(3), 2V7(obs.) = 37(4)° r > v perceptible, cleavage {010} perfect, hardness = 4, specific gravity = 3·83(5). The five strongest powder lines are 1·777(10), 2·500(7), 3·371(6), 2·628(6), and 1·525(6).


Zootaxa ◽  
2008 ◽  
Vol 1933 (1) ◽  
pp. 33-42
Author(s):  
HONGLIANG SHI ◽  
HONGBIN LIANG

A new subgenus Sinoelaphrus new subgenus of Elaphrus is described based on a new species from north China, E. angulonotus new species (type locality: Beijing, Haidian, Yangtaishan, 205m). The new species is different from other members of the genus in having a prominent lateral angle on the pronotum and one seta on each angle. Cladistic analysis of the seven genera and subgenera of Elaphrini confirms the phylogenetic status of the new subgenus.


1984 ◽  
Vol 116 (11) ◽  
pp. 1549-1556
Author(s):  
Yuri A. Tshistjakov ◽  
J. Donald Lafontaine

AbstractThe two known species in the genus Dodia Dyar are reviewed, and one new species, Dodia kononenkoi, is described from Magadanskaya Oblast, USSR, and Yukon Territory, Canada. The generic name Hyalocoa Hampson is synonymized with Dodia and two new combinations are proposed. Dodia kozhantshikovi (Sheljuzhko) and D. atra (Bang-Haas) are synonymized with D. albertae Dyar. Descriptions and range maps are included, and adults and genitalia of the three species are illustrated.


The mineral here analysed was brought from the peninsula of Hindostan by Dr. Heyné, where it occurs in considerable quantity along with malachite. Those specimens that are freest from malachite are of a dark blackish brown colour, soft, being easily scratched with a knife, which leaves a streak of a reddish brown. Its specific gravity is 2·62. Its fracture is in general small-conchoidal, but with a tendency in some parts to a foliated fracture; but it has not yet been seen with any appearance of external crystalline form. It effervesces with acids, which form a blue or green solution according to the acid used, and leaves a red powder undissolved.


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