Document by962pk1wbjeykZV2MKVeMvOD

FILE NAME: Chemical Abstracts (CHAB) DATE: 1958 DOC#: CHAB040 OCUMENT DESCRIPTION: Abstract Originally Published in 1958 by Kileshov 19731 f?sS Chemical Abstracts 19732 ^ - IT73? Vol. 52 Akad. Nauk. S.S.S.R . 119, 745- 8(1958).--Kazakov studied (1934-50) the marine-littoral origin of phosphorite deposo; and tried to investigate the fundamental system Ca.U- NaCl-HjO in the relation of the deposition of :P ii and CaO as a function of the pH, starting from the P.O, ^ t e n t of o sea water. Shatskil (1955) and Strakhov and Bushinsk.I (1954) criticized the conclusions of Kazakov and empha sized that -n examn. of the pptn. of apatite mm^als is needed. Soly. detns. for the cryst. phases m the system _ CaO-PjOi-HjO were repeated for a const. NaCl content of 3 5% (at 20). Considerably smaller vols.of the solns. were used than were used by Kazakov. The P,0. contents dissolved as a function of pH, and the CaO contents of the solns. in equil. werefound in a general agreement with Kazakov sdata, ^ but the graph representing CaO in soln. as a function of pH for various P0 concns. shows a striking contrast to Kaza kov's conclusions. The CaO contents were much too low to correspond to the CaO in sea water. The apatife minerals in phosphorite minerals are characterized as (1) hydroxy---apatite, Cai0P.O(OH)j, which occurs in cavities of Podolian phosphorites, forming a continuous scries of cryst. solns. with F apatite; (2) pure F apatite, CamPiOuFi, or F apatite mixed with carbonate-apatite, typical tor the phos phorites of Kara Tau, the Siberian platform, and of the c Balticum (all of these phosphorites show a certain meta morphism); (3) pure carbonate-apatite, Cau>P6COa(OH)i, is only observed in Podolian phosphorites, (4) F carbonate apatite, CamPiCOaFj, was observed exclusively in ph o s-_ phoritized wood, and a mixed F hydroxycarbonate-apatite in nodular phosphorites; (5) particularly interesting is the Na sulfate-apatite, CafNaSPiC^Fj, mixed with carbonateapatite in phosphorites of Seleuk, which occur in terrigenic carbonate sediments (Shatskif, 1955). In the system CaO- d PjOt-NaCl-COj-HjO the PsOt content of the satd. solns. esting optical properties. Three varieties were observed, differing in morphological characteristics and phys. proper ties. The 1st one is found in phosphorites in finely divided form. It is soft and is of variable color and transparency; is 1.650-1.660 for the transparent variety and 1.664 1.700 for the semitransparent variety. It is isotropic, x- rays showed extremely fine structures; this variety may, therefore, be called metacolloidal. The 2nd variety occurs in the form of small rounded crystals several min diam. This micrceryst. variety is regarded as the later stage of crystn. of the primary colloidal mineral, n is 1.680-1.730; the interference color gray. It is assoed. with phosphate-bear ing tuffs and tuffites. The 3rd variety consists of aggregates of bipyramidal crystals 0.01-0.03 mm. long. is 1.800; the interference colors are up to orange or red. It occurs in the cementing material of phosphate-bearing sandstones and conglomerates. Chem. analyses showed the following ap prox. compns. in wt. % for 1 sample of variety (1), one of variety (2), and 2 of variety (3), resp.: ZrOj 49.3, 55.12, 51.4, 57.1; HfO, --, 0.5, 0.1, 0.3; SiO, 24.7, 29.8, 25.6, 28.3; HjO 8.5, 5.7, 10.5, 5.4; U 0.6, 0.4, 0.5, 0.4. All varieties contain small amts, of AljOj, FejOi, KjO, and NajO. All are sol. in HNOj; the 3rd variety is also sol. in dil. HC1. Known zircons are insol. The cryst. structure shows that the mineral is a variety of zircon, yet its morpho logical, phys., and chem. characteristics are different from those of zircon. I t is also different geologically in that it is not related to any intrusive activity while zircon is a typical magmatic product. All this permits the conclusion that the mineral is a new, previously unknown variety of zircon. Because of its distinctive properties the authors urge its recognition as a new mineral, and propose to name it "arshinovite" in honor of the distinguished Russian geolo gist and mineralogist, V. V. Arshinov. B. N. Daniloff (at 20) increases with increasing HCO- concn. This Hydromagnesian minerals in the Aktovrak hyperbasic relation may explain the enrichment of phosphates in HCOj- - rock massif. V. P. Eremeev. Trudy Inst. Geol. Rudnykh contg. marsh waters (cf. Gorshkova, C.A. 52, 10663). Mestorozhdenil. Pelrog., Mineral, i Geokhim. No. 10, 29--40 W. Eitcl ~ (1957).--The Aktovar massif is one of the largest serpen- Microorganisms and the presence of syngenetic pyrite. tinized peridotite intrusions in western Tuva. Hydromag- L. G. Love. Quart. J . Geol. Soc. London 113, 429-37, nesial veins are encountered filled with comparatively rare discussion, 437-40(1957) (Pub. 1958).--Pyrite granules minerals, such as artinite, hydromagnesite, alpha-kerolite, ranging from about 2 to 30 p in diam., found in certain beds g dolomite, and calcite. These minerals were formed during of the Scottish Lower Carboniferous Oil Shale Group, have late post-magmatic period by deposition from CaO- and nonpyritous centers and a d. of 3.8-4.0 g./cc. compared MgO-rich solns. which entered through open cracks in the to 4.8-5.1 g./cc. for normal pyrite. Isolation and treat intrusion body. The action of Mg-rich solns. on calcite ment with HNOj reveals the presence of a hitherto unknown veins caused replacement of the calcite and_ formation of group of microfossils which may, through HjS production, 'artinite. It can be assumed that the kerolite is a secondary' have had an essential role in formatiou of the pyrite. mineral derived from dolomite. B. N. Daniloff Donald L. Graf Two types of carbonate concretions of the Russian plain. Properties of magnesite from the Talaya River deposits. D. A. Vital. Doklady Akad. Nauk S.S.S.R . 115, 975-7 A. S. BerezhnoT. Melody Issledovan. Mineral. Syr'ya, j (1957).--The main components of the carbonate concretions Vsesoyuz. Nauch.-Issledovatel. Inst. Mineral. Syr'ya 1957, are CaCOj and FeCOj; MgCOj and CaCOj are present in a 122-9.--The magnesites, located in the Angara River basin reverse ratio, e.g. the more is of one, the less is of the other in the Krasnoyarsk area, are of a coarse-grained yellowish one. All of them belong to the siderite group. T. C. white variety. They are found in the Proterozoic dolomites. Details of asbestos formation in carbonate rocks of the Av. samples after ignition show MgO 97.5, SiOi 0.5, AlsOj--' Vangyrsk district in the Ural Mts. G. F. Kuleshov. Zapiski 0.5, FejOj 0.6, and CaO 0.9%. Other properties: sp. gr. Vsesoyuz. Mineral. Obskchestva 87, 373-9(1958).--The as 2.99; average porosity 2%; compressive strength 740 to bestos deposits occur in Proterozoic or Lower-Cambrian 1080 kg./sq. cm.; heat resistant to 2000; grain size ranges cryst. schists with calcareous and tuffaceous layrers included, from 0.5 to 3 mm. The caking qualities are somewhat in further in dolomitized limestones. Intrusions of diabase and ferior but can be easily improved by addns. The linear if granite, and a hematite ore deposit is related to the metamor- coeff. of expansion of pure sintered magnesite without addns. phic sediments. The best asbestos fibers are found in the is 13.2 X i0~*. Expts. are described on grinding, grading, limestone country rock with a slight schistosity, in contact suuering, and caking. Best sintering temp, is 1750, or with talc-chlorite schists contg. steatite lenses. In the 1650 when addn. of or`- (5%) is used. The study showed _ ' neighborhood of the asbestos veins the limestone is changed that the Talaya magnesite is a valuable raw material for to a dense fine-cryst. dolomite contg. pennine, pyrite, and manuf. of refractories. B. N. Daniloff serpentine; chem. analyses of the carbonate rocks are given. Sodium uranospinite. E. V. Kopchenova and K. V. The asbestos occurs in irregularly fissurated rocks, or in sub Skvortsova. Proc. Acad. Sci. U.S.S.R., Sect. Geol. Sci. parallel arrangement of the cracks filled with carbonate 4- 114, 529-31(1957) (English translation).--See C.A. 52, asbestos, of a few mm. to 40 cm. in thickness and 4 to 8 m. in 989c. B .M .R . length. The mineral paragenesis is characterized by colum Arshinorite--a new metacolloidal variety of zircon. E. G. nar carbonate portions (calcite, dolomite, aragonite), sur Razumnaya, G. A. Smelyanskaya, K. G. Korolev, and G. rounded by fibrous asbestos, partly of rigid to brittle, V. Pokul'nis. Melody Issledovan. Mineral. Syr'ya, Vsc- ---partly of good elastic quality. Quartz, magnetite, and soyuz. Nauch.-Issledovatel. Inst. Mineral. Syr'ya 1957, hematite are scarce accessories. The asbestos is a typical 45-50.--A peculiar zircon mineral was found _ln 1955 in amphibole, in 2 modifications, one with parallel extinction, northern Kazakhstan and later in other localities in sedi y " 1.620; the other with an extinction angle c: y = 12 and mentary and igneous rocks. The new mineral was formed . y = 1.606 to 1.609; a = 1.579 to 1.600. They are, there by coagulation from gels; as dehydration proceeded the * fore, of the character of anthophyllite and actinolite in their mineral crystd. and acquired its present properties. The optical consts. but the rhem. compn. ealed. from the analyses mineral is characterized by the scarcity or absence of well- shows the 1st amphibole to be a tremolite high in CaO. developed cryst. form. Detailed microradiographic examn. Trace elements are V, Be, Ti, and Cu. An unusually longshowed that the mineral is radioactive and possesses inter fibrous asbestos (up to 30 cm.) is rather easily cleavable. 1958 1^-73? ^ 19733 8--Mineralogical Chemistry 19734 Most of the asbestos is acid-resistant (soly. 5.5% to 6.8%); Petr ie m y (Masaryk Univ., Brno, Czech.). Pubis, fac. in weathered portions it is rather much decompd. by dil.HCl set. univ. Masaryk No. 37G, 27-40(1956)(English summary); (14.3 to 30.4% sol.). The quality is about the same as that cf. C.A. 51, 42216.--Parallel growths from a pegmatite are of the anthophyllite from Sysert. A comparison of the described. The xenotime is uniaxial, pos., n u 1.721. chem. analyses of the anthophyllite asbestos withi other a Qual. spectrographic analyses are given of zircon, xenotime, amphibole asbestos types is given. _ " Eitel and spessartite garnet. Michael Fleischer The solubility of calcium carbonate at higher tempera The relation between coeruleolactite, planerite, turquoise, tures. Janine Rasumny (cole normale supr., Paris). alumochalcosiderite, and chalcosiderite. Emil Fischer Ann. insl. kvdrol. el climatol. 27, 147-15l(l9o6)(Pub. 1958)._ (Humboldt-Univ., Berlin). Beitr. Mineral, u. Petrog. 6, --Samples o'f rock powder that passed a 0.5-mm. sieve were 182-9(1958).--X-ray powder diagrams and chem. analyses extd. with distd. water in a Soxhlet app. for 7 days. The ob indicate that coeruleolactite, planerite, turquoise, alumo tained ext. from different carbonate rocks contained Ca m chalcosiderite, and chalcosiderite are structurally and chem p.p.m.: marble 92.4, dolomite 85, aragonite 110, Barre- ically closely related. The general formula is M ++M4+++- mian limestone 115, Urgonian limestone 105. S. Miholic (0H )8(X 04)4.4-5H20 , where M ++ = Ca, Cu, Mg, Fe; Mineralogy and petrography of the Kara Bogaz Gol Gulf M +++ = Al, Fe; and X = P, As. The white coeruleolac salt deposits. V. A. Vakhrameeva. Trudy Vsesoyuz. tite of Katzenellenbogen appears to be composed of five Nauch.-Isledovalel. Inst. Galurgii 32, 67-86(1956).--De- parts of a pure Ca-Al phosphate corresponding to turquoise posits of rock salt (halite), glauberite [NajCa(SO<)j], and and one part of an Alhydroxide. Variations in the d mixed salts, intercalated by layers of carbonate-gypsum values and intensities of Debye-Scherrer lines are conditioned rocks in the Kara-Bogaz Gol Gulf, were formed during 2 rises through the partial replacement of the bivalent, trivalent, and and 3 falls of the Caspian Sea level. The carbonate-gypsum perhaps the quinquevalent ions among one another. Plan series consist mainly of gypsum, cither intercalated by, or erite from the Tschomaja River, coeruleolactite from Chester mixed with, dolomite and magnesite. These were deposited c County, Pa., and Katzenellenbogen are Ca-rich and Cu- during the periods of max. rise of the sea. The glauberite poor turquoise. Turquoise from Muhlleithen, Chorassen series is hard rocks contg. crystals of glauberite with small (Persia), Kings River (U.S.A.), and Jordansmuhl (Silesia) quantities of carbonate. This glauberite was deposited are almost pure Cu turquoise; that from Olsnitz in Vogt when the brine started to thicken in one of the following land is intermediate. Alumochalcosiderite from Vogtland ways: seasonal deposition from the brine either by direct -- in a solid soln. of turquoise and chalcosiderite. The pptn., or by rapid crystn. of metastable CaS04, or by the chalcosiderates examd. contain some AltO, and Fe2Oj. The reaction between dispersed gypsum and NaSO soin.; early As content in turquoise and chalcosiderite of Muhlleithen is diagenetic changes of mirabilite (Glauber salt) and Na synge- too slight to have an appreciable influence on the lattice di nite [Na2Ca(S04)2.2H20] ; pptn. from soin, contained pre- . mensions. George H. Chase viously in the underlaying carbonate-gypsum rocks. Halite " Preliminary note on kimzeyite, a new zirconium garnet. occurs in layers more or less pure, or is mixed with astrakan- Charles Milton and Lawrence V. Blade (U.S. Geol. Survey, ite [NajMg(SO<)i.4HiO] and _epsomite (MgS04.7H20). Washington, D.C.). Science 127, 1343(1958).--A new During the max. drying out period in the Kara Bogaz Gol, garnet, contg. >10% Zr02, was found assoed. with monticel- deposition took place in the following order: halite, astrak-_ lite, magnetite, perovskite, apatite, and other minerals in anite, and sometimes epsomite. Astrakanite was formed the Kimzey calcite quarry at Magnet Cove, Ark. The cell also by diagenetic processes. 5 references. V. B. edge is ao =* 12.46 A. The garnet in thin section is isotropic,, Optical calcite deposits in Park and Sweet Grass counties, with no * 1.95. Walter R. Averett Montana. W. C. Stoll and Frank C. Armstrong. U.S. Sodium sulfate deposits in U.S.S.R. A. I. Dzens- Geol Survey, Bull. No. 1042-M, 431-79(1958) - -The calcite e LitovskiL Trudy Vsesoyuz. Nauch.-Isledovalel. Inst. Gal occurs as thick massive veins, as branching smaller veins, or urgii. 32, 87-101(1956).--Na2S04 in the U.S.S.R. occurs in as stockworks of veinlets. Some veins are several thousand 4 mineral species: thenardite, NaS04 (the most important feet long and up to 20 feet wide. The crystals formed in mineral); mirabilite (Glauber salt), Na2SO4T0H2O; astrak vugs and are mostly rhombohedrons and scalenohedrons, and anite, Na2S04-MgS044 H 20 (abundant in lake deposits); were probably deposited by hot springs similar to the present and glauberite, CaS04-NaiS04. All these minerals occur in springs in the area. W. L. Cheesman 3 main geol. types of deposits: deposits of former geol. pe Thenardite and mirabilite in Lake Marfovka. A. M. riods, buried under a cover of sedimentary rocks or of weather Ponizovski, S. D. Shargorodskil, S. M. Stavrov, and N. M. ing products; sea deposits, inner seas whose water may serve Vladimirova. Dopovidi Akad. Nauk Ukr. .R.S.R. 1958, j as NajS04 raw material (Caspian and Aral sea); lake de No. 6, 651-3(Russian summary).--Thenardite crystn. wTas posits, recent lakes, which ppt. NajS04 either permanently discovered in Lake Marfovka (Crimea) in the summer of or periodically. There are also 3 types of deposits of hydro- 1957. In connection with changes in the meteorological geol. orgin, i.e. types of sulfatic water and brines: under conditions in autumn, the thenardite (Na2S04) was con ground, carstic, and intercryst. (fossil brines). The geo verted into mirabilite (NajSO4.10H2O). The lake bottom -- graphical distribution of the NaS04deposits is very irregu was covered with a 2-3-mm. layer of mirabilite. Druses of lar. The main industrial deposits are found in western large crystals, 7-8 cm. in length and up to 1.5 cm, wide, Siberia and in the Caspian, Aral, and Balkhash districts. were discovered in some parts of the lake. The chem. Deposits of local significance are found on the Caucasus, in analysis of the lake brine and salts showed the presence of the Lower Volga valley, in the Minusinsk basin, and Dauria. NaCl, MgS04, Na2S04, CaS04, Ca(HCOj)s, and an undis- 0 At present natural NaS04is exploited only from deposits of solved residue. T. Cheron the lake and hydrogeol. (intercryst.) ty p e/ Exploitation of Structure of vanadinite. J. Trotter and W. H. Barnes otter deposits (Siberia, Middle Asia, Carpathian Promon (Natl. Research Council Can., Ottawa). Can. Mineralo tory) is also planned for the near future. 32 references. gist 6, 161-73(1958).--Crystals from the Apache Mine near -- V. Boskovitz Globe, Arizona, w r i studied. Vanadinite is hexagonal, Natural alums of San Juan: their chemical composition. space group .. ji/m , with a 10.331, c 7.343 0.001 A., d. Luis Rovira. Ind. y quim. (Buenos Aires) 18, 504-8, 515, 6.816 g./ml., Z = 2. Two-dimensional Fourier syntheses 520(1958).--The alum deposits of San Juan are often assoed. show the structure to be like that of fluorapatite. Each Cl with magnesian deposits; in many instances pickeringites is surrounded by 6 Pb with Pb-Cl distance 3.17 A. The TMwere derived from MgS04. The most important deposits V04 groups are isolated tetrahedra with V-O 1.76 and 1.72 are those of Tontal and Quebrada de la Alumbrera. About A. Each Pb is surrounded by 9 0 at 2.47, 2.57, and 2.76 A. 171 mines weie listed in 1946. Most of the alum occurs in Michael Fleischer surface deposits, pockets, and veins. Various types of host Formation mechanism of ferritungstite. B. S. Khristo-_ rocks are found, but the principal type in the zone of Tontal forov. Zapiski Vsesoyuz. Mineral. Obshshestva 84, No. 1, is aluminiferous schists. An analysis of a typical gang is 90-5(1955).--Three chem. analyses of ferritungstites and (by weight) loss on heating to 1100 13.38, SiOi 51.88, the soly. of Fe and Mn salts is studied. K. finds that during A1,0, 20.64, FejOi 9.21, NiO 0.046, P2Os 0.72, Mn 0.16,0 weathering the Fe content of ferritungstites increases and the _ CaO 0.40, MgO 1.63, alkalies and undetd. 1.63%. _ Aphys. Mn content decreases. On the basis of the analyses the i analysis of the gang: liquid limit 52.40; plasticity index formula is written Fe20j-W 0j H20 rather than with 6H20 . 18.10; contraction limit 26.6; contraction relation 1.69; The presence of considerable amts, of Mn in all samples is volumetric change 51; lineal contraction 12.80. A repre emphasized. A. Volborth sentative analysis of the various alums indicates a probable Parallel growths of xenotime and zircon from Drahonin. compn. of A12(S04)j 27-36, MgS0410-22%, and more widely