Analysis of a new species of copper ore

1832 ◽  
Vol 1 ◽  
pp. 479-479
Keyword(s):  
New Species ◽  
Specific Gravity ◽  
Crystalline Form ◽  
Copper Ore ◽  
Brown Colour ◽  
Green Solution ◽  
A New Species

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.

MacFallite and orientite: calcium manganese (III) silicates from upper Michigan

1979 ◽  
Vol 43 (327) ◽  
pp. 325-331 ◽  
Author(s):  
Paul B. Moore ◽  
Jun Ito ◽  
Ian M. Steele
Keyword(s):  
New Species ◽  
Specific Gravity ◽  
Manganese Oxide ◽  
Monoclinic Space Group ◽  
Orthorhombic Space Group ◽  
Space Group ◽  
Brownish Yellow ◽  
Coarse Aggregates ◽  
A New Species ◽  
Brown Streak

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.

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
Keyword(s):  
New Species ◽  
Chemical Analysis ◽  
Specific Gravity ◽  
Yukon Territory ◽  
Breakdown Product ◽  
Pure Material ◽  
Fine Grained ◽  
Intimate Mixture ◽  
Species Type ◽  
A New Species

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:

Description of a new species of Haminoea, Haminoea callidegenita (Mollusca: Opisthobranchia), with a comparison with two other Haminoea species found in the northeast Pacific

1989 ◽  
Vol 67 (4) ◽  
pp. 914-922 ◽  
Author(s):  
Glenys D. Gibson ◽  
Fu-Shiang Chia
Keyword(s):  
New Species ◽  
Washington State ◽  
Shell Shape ◽  
Egg Mass ◽  
Diagnostic Features ◽  
Northeast Pacific ◽  
Brown Colour ◽  
Different Populations ◽  
A New Species ◽  
Cephalic Shield

A new species of Haminoea (Opisthobranchia: Cephalaspidea), Haminoea callidegenita, is described from Washington State, U.S.A. Diagnostic features are reddish brown colour, deeply bifurcate cephalic shield, reddish ovate shell with imperforate apex, tubular Hancock's organ, unarmed penis, unilobular prostate, and radula formula n.l.l.l.n (n from 12 to 21), with bicuspid first lateral uncini. The development of H. callidegenita is unusual among the Opisthobranchia in that the hatching stage includes both lecithotrophic veligers and juveniles from each egg mass. Diagnostic features were examined among animals from different populations of H. callidegenita and two other Haminoea species found in the northeast Pacific: H. vesicula Gould, 1855 and H. virescens Sowerby, 1833. Shell shape was slightly variable among individuals of all three species and radula morphologies were variable among populations of H. vesicula. Fingerlike papillae were noted on the gizzard plates and are suggested as a diagnostic character.

Manganhumite, a new species

1978 ◽  
Vol 42 (321) ◽  
pp. 133-136 ◽  
Author(s):  
Paul Brian Moore
Keyword(s):  
New Species ◽  
Specific Gravity ◽  
Type Locality ◽  
Space Group ◽  
A New Species

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).

scholarly journals Euscorpiops lii sp. nov. and a key of the genus Euscorpiops Vachon, 1980 (Scorpiones, Scorpiopidae) from China

ZooKeys ◽  
2020 ◽  
Vol 968 ◽  
pp. 71-83
Author(s):  
Zhiyong Di ◽  
Sha Qiao
Keyword(s):  
New Species ◽  
Southwest China ◽  
External Surface ◽  
Ventral Surface ◽  
Brown Colour ◽  
A New Species

A new species, Euscorpiops liisp. nov., from Xizang (Tibet) in southwest China is described herein. Adult scorpions in this species are principally characterized by yellow-brown colour, a length of less than 40 mm, 17 trichobothria on the external surface of the pedipalp patella and usually six trichobothria on the ventral surface of the pedipalp patella in both sexes. With the description of this new species, the number of known species of the genus Euscorpiops from China is raised to 13 (five species found in Xizang, including the new species, and eight other species in Yunnan). A key to the species of the genus Euscorpiops from China is presented.

Observations on a new species of hard carbonate of lime; also on a new species of oxide of iron

1832 ◽  
Vol 1 ◽  
pp. 125-126
Keyword(s):  
New Species ◽  
Nitric Acid ◽  
Specific Gravity ◽  
Great Part ◽  
Regular Form ◽  
A New Species

The new carbonate of lime here treated of was first noticed in a group of hexahedral pyramidal crystals in Mr. Greville’s collection. The Count, observing that the exterior appearance of these crystals was very different from that which is peculiar to carbonate of lime, endeavoured in the first place, in order to determine their nature by their configuration, to reduce them, by splitting, into the rhomboidal form of this substance; but he soon found, to his surprise, that not only he failed in producing such a fracture, but that it was with the greatest difficulty he could break them into any regular form whatever. Their hardness he found to be much greater than that of common carbonate of lime, being such as would scratch very easily the fluates of lime, and even glass. Their specific gravity was 2912. They were colourless, and in general perfectly transparent. When heated they are slightly phosphorescent. They dissolve quickly, and with great effervescence, in nitric acid. After various attempts, he found at length that these crystals would admit of being divided into two directions, tending to produce a rhomboidal tetrahedral prism. A great part of the paper is taken up in describing the angles produced by these fractures, and also the figures of all the different crystals he had opportunities of observing; which descriptions are illustrated by drawings.

scholarly journals On a New Species of Hydroid, Staurocoryne Filiformis, with a Revision of the Genus Staurocoryne Rotch, 1872

1936 ◽  
Vol 21 (1) ◽  
pp. 135-142 ◽  
Author(s):  
W. J. Rees
Keyword(s):  
New Species ◽  
Sea Water ◽  
Vegetative State ◽  
Natural Conditions ◽  
Close Resemblance ◽  
Brown Colour ◽  
A New Species

The writer has recently reared a species of hydroid at Plymouth, which, in the vegetative state, might easily be confused with Slauridium productum Wright, 1858. The original creeping stolon from which the colony developed was found on a piece of dead Eunicella verrucosa (Pallas) dredged by the S.S.Salpa near Stoke Point on March 9th, 1936.When isolated in a finger-bowl with “outside” sea water the stolon bore no polyps and showed no sign of activity, but three weeks later a single polyp had developed (Fig. 3). From its close resemblance to the figures given by Hartlaub (1895) for S. productum, it was at first assumed to be this species and was carefully watched and fed in the hope of rearing the medusæ from it. After a period of time, however, when the colony had increased considerably in size, styloid gonophores were developed.The type of growth of the fully grown colony is shown in Figures 1 and 2. The stems are elongated and slender, bearing polyps at intervals. Polyps are borne at the summit and also on branches of the main stems. These branches usually arise from one side only of the main stems and it is probable that under natural conditions in the sea these main stems are really stolons. It is also likely that in nature the intervals between the polyps are fairly short. The whole colony has a faint yellow-brown colour which becomes reddish-brown in the polyps and the upper part of the hydrocaulus.

scholarly journals A NEW SUBGENUS AND TWO NEW SPECIES OF TRECHUS FROM ETHIOPIA (Coleoptera, Carabidae)

2012 ◽  
Vol 44 (1) ◽  
pp. 19
Author(s):  
Paolo Magrini ◽  
Eric Quéinnec ◽  
Augusto Vigna Taglianti
Keyword(s):  
New Species ◽  
Present Note ◽  
Dorsal Part ◽  
Tarsal Segment ◽  
The Third ◽  
Brown Colour ◽  
New Subgenus ◽  
Two New Species ◽  
A New Species

Two new species of <em>Trechus</em> from the Oromia Province (Ethiopia) are described in the present note. In the first part we describe <em>Archeotrechus</em>, a new microphtalmic <em>Trechus</em>, characterized by the dilation of only the first tarsal segment in males and by the aedeagus with the dorsal part amost completely divided into two lobes: a sclerified connection exists only in the region of the basal ostium. To this subgenus we ascribe the new species <em>Trechus</em> (<em>Archeotrechus</em>) <em>relictus</em>, from the area of Mt. Sgona (Batu), of yellow-brown colour, rather flattened, with non sinuate pronotum and blunt fore and hind angles; two discal setae in the third stria. The aedeagus is much elongated, with a spherical apical button, copulatory piece triangular, lanceolate, with a sharp apex, little sclerified and very simple, typical of ancestral forms, like for instance <em>Minitrechus</em> Vigna Taglianti &amp; Magrini, 2009. The female gonostyli, short and curved, bear at the apex two big setae on the inner edge. In the second part of the note we describe <em>Trechus</em> (s. str.) <em>oromiensis</em>, a new species of <em>bipartitus</em> Group (sensu novo), characterized by the presence of only one discal seta on elytra and by peculiar features of the aedeagus.

The giant purple pedinid—a new species of Caenopedina (Echinodermata: Echinoidea: Pedinidae) from New Zealand and Australia

Zootaxa ◽  
2009 ◽  
Vol 2007 (1) ◽  
pp. 43-57 ◽  
Author(s):  
OWEN F. ANDERSON
Keyword(s):  
New Species ◽  
New Zealand ◽  
Sexual Dimorphism ◽  
Continental Shelf ◽  
Hawaiian Islands ◽  
Southeastern Australia ◽  
Large Size ◽  
Brown Colour ◽  
The Rich ◽  
A New Species

Echinoids of the genus Caenopedina are widely distributed in continental shelf and slope waters of tropical to subAntarctic regions. A new species, Caenopedina porphyrogigas sp. nov. is described from temperate and sub-Antarctic areas of New Zealand and southeastern Australia in depths of 350–1200 m. This species is distinctive for the rich brown colour of its spines, purple apical and oral regions, large size, wide interambulacral plates, lack of obvious sexual dimorphism, and few forms of pedicellariae. The first confirmed records outside of the Hawaiian Islands and neighbouring atolls of another species in the genus, C. pulchella, reveal its existence also in northern New Zealand, and C. otagoensis, previously considered endemic to New Zealand is recorded from additional locations in the region as well as from a seamount west of Tasmania. An updated key to the species of Caenopedina is provided to include the four Australasian species most recently described.

Bahianite, Sb3Al5O14(OH)2, a new species

1978 ◽  
Vol 42 (322) ◽  
pp. 179-182 ◽  
Author(s):  
Paul B. Moore ◽  
Carlos do Prado Barbosa ◽  
Richard V. Gaines
Keyword(s):  
Crystal Structure ◽  
New Species ◽  
Specific Gravity ◽  
Space Group ◽  
Hexagonal Close Packed ◽  
South Central ◽  
New Type ◽  
A New Species

SummaryBahianite, Sb3Al5O14(OH)2-Sb3Al5(Al, Be, Si)<2O16, monoclinic, a 9·406(6), b 11·541(8), c 4·410(3) Å, β 90·94(3)°, Z = 2, space group C2/m, is a new species from the Paramirim region, south central Bahia state, Brazil. It occurs as water-worn pebbles (‘favas’) with quartz, andalusite, kyanite, diaspore, eskolaite, cassiterite, etc. Colour tan to cream, crystals in vugs colourless, tan or pale violet. Specific gravity ranges from 4·89 to 5·46 (5·26 g cm−3 for Sb3Al5O14(OH)2); hardness 9, cleavage {100} perfect, lustre adamantine, biaxial (−), 2V large, α = 1·81, β = 1·87, γ = 1·92, dispersion r > v.The crystal structure represents a new type and is based on hexagonal close-packed oxygens. It is related to the structure of simpsonite Ta3Al14O13(OH).

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