The Canadian Journal of Mineralogy and Petrology最新文献

{"title":"Micro-Inclusions in Corundum from Puesto La Peña Complex Ouachitites, Mendoza, Argentina: A Window to the Mantle","authors":"E. Zappettini, João O.S. Santos","doi":"10.3749/2300010","DOIUrl":"https://doi.org/10.3749/2300010","url":null,"abstract":"Corundum xenocrysts from ouachititic dikes related to the ultrapotassic Puesto La Peña Complex, Mendoza, Argentina, contain inclusions of oxides, silicides, and silicates. Oxides identified are hibonite, carmeltazite, and as yet unnamed minerals consisting of ZrTiO3, (Al,Ti,Zr) oxide, and (Mn,REE) oxide. An unnamed Ti2(Mn,Fe)4Si5 phase was also recognized. Silicates include wodegongjieite and grossmanite. All minerals are enriched in rare earth elements. The formation of these mineral inclusions under extreme P-T conditions would have occurred in the primeval Earth, preserved in the lithospheric mantle and protected from oxidation by crystallization of corundum through the introduction of mantle-derived magma-transported fluids. The corundum crystals would have been transported by a rising plume in a back-arc extensional setting during the Miocene and incorporated as xenocrysts in an alkaline ouachititic magma, conferring its peraluminous signature.","PeriodicalId":218967,"journal":{"name":"The Canadian Journal of Mineralogy and Petrology","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139227869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stanevansite, Mg(C2H3O3)2·2H2O, a New Hydrous Glycolate Mineral, From The Santa Catalina Mountains, Tucson, Arizona, USA","authors":"Hexiong Yang, X. Gu, Warren Lazar, R. Gibbs, Robert T. Downs","doi":"10.3749/2300047","DOIUrl":"https://doi.org/10.3749/2300047","url":null,"abstract":"A new organic mineral species, stanevansite, ideally Mg(C2H3O3)2·2H2O, was discovered from the western end of Pusch Ridge in the Santa Catalina Mountains (32° 21′ 42″ N, 110° 57′ 30″ W, at the elevation of 975 m), north of Tucson, Arizona, USA. It occurs as sprays of bladed crystals (up to 0.40 × 0.07 × 0.03 mm). Associated minerals include lazaraskeite, chrysocolla, malachite, wulfenite, mimetite, phosphohedyphane, cerussite, hematite, calcite, microcline, phlogopite, and quartz. Stanevansite crystals are colorless in transmitted light, transparent with white streak and vitreous luster. They are brittle and have a Mohs hardness of ∼1½; cleavage is perfect on {100}. Twinning is common on (100). The measured and calculated densities are 1.69(5) and 1.682 g/cm3, respectively. Optically, stanevansite is biaxial (+), with α = 1.539(5), β = 1.545(5), γ = 1.558(5), 2Vmeas. = 62(2)°, 2Vcal. = 69°. It is insoluble in water, but slowly dissolves in hydrochloric acid. An electron-microprobe analysis yielded an empirical formula, based on 8 O apfu and Σ(Mg + Zn) = 1 apfu, of (Mg0.95Zn0.05)Σ1.00(C2H3O3)2·2H2O, which can be simplified as (Mg,Zn)(C2H3O3)2·2H2O. Stanevansite is monoclinic with space group P21/c and unit-cell parameters a = 11.4927(2), b = 5.85470(10), c = 12.4711(2) Å, β = 91.1610(10)°, V = 838.96(2) Å3, and Z = 4. It is isostructural with several synthetic glycolate compounds having the general chemical formula M2+(C2H3O3)2·2H2O, where M2+ = Co2+, Mn, Zn, and Mg. The crystal structure of stanevansite is characterized by the mononuclear complex [Mg(C2H3O3)2(H2O)2], with such complexes being connected to one another by hydrogen bonds to form a three-dimensional supramolecular architecture. In a [Mg(C2H3O3)2(H2O)2] complex, Mg is octahedrally coordinated by two chelating glycolate ligands and two H2O molecules. Stanevansite represents the first hydrous glycolate mineral and is believed to have formed through the interaction of fluids containing glycolic acid (C2H4O3) derived from decaying plant materials or bacterial activities with Mg produced by the alteration of primary and secondary minerals. Its discovery, together with other glycolate minerals documented recently, namely lazaraskeite Cu(C2H3O3)2, jimkrieghite Ca(C2H3O3)2, and lianbinite (NH4)(C2H3O3)(C2H4O3), not only implies that more glycolate minerals may be found in nature, but also suggests that glycolate minerals may serve as a potential reservoir for biologically fixed carbon.","PeriodicalId":218967,"journal":{"name":"The Canadian Journal of Mineralogy and Petrology","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139233585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New Minerals from the Redmond Mine, North Carolina, USA: IV. Haywoodite and Hanahanite, Two New Minerals Containing Gordaite-Like Sheets","authors":"Anthony R. Kampf, Jason B. Smith, John M. Hughes, Chi Ma, Christopher Emproto","doi":"10.3749/2300027","DOIUrl":"https://doi.org/10.3749/2300027","url":null,"abstract":"ABSTRACT The new minerals haywoodite, [Pb(H2O)10)][Zn12(OH)20(H2O)(SO4)3] (IMA2021-115), and hanahanite, [Zn8(OH)14(SO4)]·3H2O (IMA2022-012), were found in the Redmond mine, Haywood County, North Carolina, USA, where they occur in a highly unusual secondary assemblage that comprises a variety of rare Pb-Zn-Cu sulfates, thiosulfates, and carbonates. Haywoodite has the following properties: colorless to pale pink pseudohexagonal tablets and barrel-like prisms up to about 0.5 mm in diameter; white streak; vitreous luster; brittle; Mohs hardness 2½; curved and stepped fracture; one perfect cleavage on {011}; 3.27(2) g/cm3 measured density; biaxial (−) with 1.588(2), β = 1.600(2), γ = 1.607(2), and 2V (meas.) = 76(2)°. Hanahanite has the following properties: light blue prisms up to 0.3 mm in length; white streak; vitreous luster; brittle; Mohs hardness 3; curved fracture; one very good cleavage on {001}; 3.28(2) g/cm3 measured density; uniaxial (−) with ω = 1.636(3) and ε = 1.620(3). Electron probe microanalyses provided the empirical formulae Pb1.36Zn11.97S3.00O43H41.33 and (Zn6.69Cu1.27Co0.01)Σ7.97S1.00O21H20.04 for haywoodite and hanahanite, respectively. Haywoodite is triclinic, P1¯, a = 8.35298(19), b = 13.2769(7), c = 18.2744(13) Å, α = 92.427(8), β = 90.419(6), γ = 108.214(4)°, V = 1922.94(18) Å3, and Z = 2. Hanahanite is hexagonal, P63, a = 8.312(2), c = 15.295(2) Å, V = 915.2(5) Å3, and Z = 2. The structures of haywoodite (R1 = 0.037 for 6876 I > 2σI) and hanahanite (R1 = 0.065 for 772 I > 2σI) both contain gordaite-like sheets. In the haywoodite structure, a disordered interlayer region contains approximately one Pb and ten H2O pfu. In the hanahanite structure, ZnO4 tetrahedra in adjacent sheets are linked by sharing corners and the interlayer region only contains an H2O group.","PeriodicalId":218967,"journal":{"name":"The Canadian Journal of Mineralogy and Petrology","volume":"2001 19","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135637319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An Examination of Platinum-Group Element Thiospinels","authors":"Louis J. Cabri, Andrew M. McDonald, Thomas Oberthür, Anna Vymazalová","doi":"10.3749/2300037","DOIUrl":"https://doi.org/10.3749/2300037","url":null,"abstract":"Abstract A review and discussion of platinum-group element thiospinels is presented, the context of which is a proposal accepted by the Commission of New Minerals, Nomenclature and Classification (voting proposal 17-H) made for the redefinition of cuproiridsite (ideally CuIr2S4), cuprorhodsite (ideally CuRh2S4), and malanite (ideally CuPt2S4), along with the discreditation of ferrorhodsite (ideally FeRh2S4) by Bosi et al. (2019). We review the literature in the context of the broader proposals by Bosi et al. (2019), highlight errors within them to conclude that all four proposals for redefinition and discreditation should have been rejected if the full facts had been consulted and IMA-established guidelines had been adhered to. It is agreed that dayingite should remain as a discredited mineral, while xingzhongite, redefined by Bosi et al. (2019) as Pb2+Ir3+2S4, is argued to be of questionable status and should be considered for discreditation.","PeriodicalId":218967,"journal":{"name":"The Canadian Journal of Mineralogy and Petrology","volume":"74 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135934041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural Controls on the Origin and Emplacement of Lithium-Bearing Pegmatites","authors":"David Silva, Lee Groat, Tânia Martins, Robert Linnen","doi":"10.3749/2300045","DOIUrl":"https://doi.org/10.3749/2300045","url":null,"abstract":"Abstract Exploration and mining of lithium pegmatites has increased in recent years to meet the growing demand for critical metals, which are required for electric-powered transportation as well as sustainable energy production and storage. Pegmatite deposits produced approximately 60% of global lithium production in 2018, the vast majority of which was from spodumene pegmatites. However, there is lack of comprehensive models linking mineral system evolution and structural controls of lithium pegmatites. The majority of studies on lithium pegmatites have focused on chemical fractionation and assume that pegmatites have evolved from a parental granitic source, yet problems emerge when the connection between the granitic source and the pegmatite bodies is not obvious. This lack of connection has given rise to an alternative model of pegmatite formation, the anatectic model. In the anatectic model, granitic pegmatites form from granitic melts produced by partial melting of a suitable lithology, typically pelitic metasediments, without forming a large granitic body followed by fractional crystallization. Here, we first examine the formation of granitic melts related to anatexis, as well as how regional crustal structures influence chemical composition, crustal migration, and melt accumulation within the crust. We next examine the Wekusko Lake pegmatite field located in Manitoba, Canada, in terms of the probable melt source migration, the relationship between crustal-scale strain-zones and spatial pegmatite emplacement, and the chemical fractionation trend that records the formation of lithium-enriched pegmatites.","PeriodicalId":218967,"journal":{"name":"The Canadian Journal of Mineralogy and Petrology","volume":"11 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135973669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effect of Strain on the Optical Properties of Quartz: Point-Dipole Calculations","authors":"Richard N. Abbott","doi":"10.3749/2300023","DOIUrl":"https://doi.org/10.3749/2300023","url":null,"abstract":"Abstract Strained quartz commonly shows biaxial optical properties with 2Vγ up to ∼22°. This research uses point-dipole theory to calculate the optical properties of α-quartz strained in various ways. Strain was modeled by distorting the lattice. Calculations that relate to simple a-axis compression involve decreasing the a-axis in small increments. Shear strain is modeled by altering the interaxial angles in small increments. The calculations agree with published experiments and observations on natural quartz tectonites. The methodology is transferable to other minerals. Point-dipole theory, as applied in this study, has the potential for quantifying the stress responsible for optical manifestations of strain in minerals. The strategy may be useful for designing laboratory experiments, understanding experimental results, and interpreting petrographic observations.","PeriodicalId":218967,"journal":{"name":"The Canadian Journal of Mineralogy and Petrology","volume":"7 22","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135973094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Jahnsite-(NaMnMn), A New Jahnsite-Group Mineral from the Wiperaminga Hill West Quarry, Boolcoomatta Reserve, South Australia, Australia","authors":"Peter Elliott, Anthony R. Kampf","doi":"10.3749/2300007","DOIUrl":"https://doi.org/10.3749/2300007","url":null,"abstract":"Abstract Jahnsite-(NaMnMn), NaMn2+(Mn2+Fe3+)2Fe3+2(PO4)4(OH)2·8H2O, is a new mineral from the Wiperaminga Hill West Quarry, Boolcoomatta Reserve, Olary Province, South Australia, Australia. The mineral occurs in seams in a matrix comprising triplite, quartz, fluorapatite, and minor pyrite and formed as a result of hydrothermal alteration. Associated minerals are bermanite, phosphosiderite, strengite, and an unknown Mn-Fe phosphate. The mineral occurs as orange-yellow prismatic crystals, elongated parallel to [100], flattened on {001}, exhibiting the forms {001}, {100}, {011}, and {201} that are twinned on {001}. Crystals are up to 80 μm in length and 25 μm across. The Mohs hardness is about 4, the tenacity is brittle, the fracture is splintery, and there is one good cleavage on {001}. The calculated density is 2.774 g/cm3. Jahnsite-(NaMnMn) is biaxial (−) with α = 1.645(3), β = 1.671(3), and γ = 1.674(3) (white light). The measured 2V is 36(1)°. Dispersion could not be observed, and the optical orientation is Z = b. Pleochroism is X = pale yellow brown, Y and Z = light yellow brown; absorption X < Y ≈ Z. Electron probe microanalysis gave the empirical formula (Na0.61Ca0.38)Σ0.99Mn2+(Mn2+1.11Fe3+0.53Mg0.29Mn3+0.07)Σ2(Fe3+1.68Mn3+0.26Al0.06)Σ2(PO4)3.98(OH)2.03·8.05H2O based on 26 O atoms per formula unit. Jahnsite-(NaMnMn) is monoclinic, P2/a, a = 15.1359(10), b = 7.2035(3), c = 9.9876(6) Å, β = 110.361(5)°, V = 1020.92(11) Å3, and Z = 2. The crystal structure has been refined to R1 = 5.70% for 2406 observed reflections with I > 2σI. The new mineral is isostructural with other members of the jahnsite group.","PeriodicalId":218967,"journal":{"name":"The Canadian Journal of Mineralogy and Petrology","volume":"31 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135972983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Virgilluethite: A New Mineral and the Natural Analogue of Synthetic β-MoO3·H2O, from Cookes Peak, Luna County, New Mexico, USA","authors":"Hexiong Yang, Xiangping Gu, Ronald B. Gibbs, Robert T. Downs","doi":"10.3749/2300041","DOIUrl":"https://doi.org/10.3749/2300041","url":null,"abstract":"Abstract The new mineral virgilluethite, ideally β-MoO3·H2O, was discovered in an unnamed short adit on the Summit group of claims near Cookes Peak, Luna County, New Mexico, USA. All virgilluethite crystals are pseudomorphs after sidwillite and occur as aggregates of sub-parallel platy crystals. Associated minerals include sidwillite, raydemarkite, tianhuixinite, ilsemannite, jordisite, powellite, fluorite, baryte, pyrite, and quartz. Virgilluethite is pale yellow-green in transmitted light, transparent with white streak and vitreous luster. It is flexible with a Mohs hardness of ∼2; cleavage is perfect on {010}. No twinning was observed visually. The measured and calculated densities are 3.71(5) and 3.69 g/cm3, respectively. Virgilluethite is insoluble in water or hydrochloric acid. An electron probe microanalysis yielded an empirical formula (Mo1.00)O3·H2O based on 4 O apfu. Virgilluethite is the natural analogue of the β-form of MoO3·H2O, which was first synthesized over a century ago (Rosenheim & Davidsohn 1903). It is monoclinic, space group P21/c, with unit-cell parameters a = 7.2834(3), b = 10.6949(6), c = 7.4861(3) Å, β = 112.779(2)°, V = 583.03(5) Å3, and Z = 4. The crystal structure of virgilluethite, which is topologically identical to that of tungstite (WO3·H2O), is characterized by highly distorted and elongated MoO5(H2O) octahedra that share four corners in the equatorial plane with one another to form sheets parallel to (010). These sheets, analogous to those in sidwillite, are held together by H-bonding between the H2O molecule and the O atom in the axial position in the adjacent sheets. Virgilluethite and raydemarkite are dimorphs of MoO3·H2O. Unlike virgilluethite, the MoO6 octahedra in raydemarkite share edges to form isolated double chains, resembling those found in zhenruite, (MoO3)2·H2O.","PeriodicalId":218967,"journal":{"name":"The Canadian Journal of Mineralogy and Petrology","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135934967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"IPS, Wager and Brown Abstracts","authors":"","doi":"10.3749/ab00031","DOIUrl":"https://doi.org/10.3749/ab00031","url":null,"abstract":"","PeriodicalId":218967,"journal":{"name":"The Canadian Journal of Mineralogy and Petrology","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139296259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biotic-Abiotic Radial-Acicular Crystal Fan Fabrics with Rosickýite at the Angel Springs Tufa-TRAVERTINE Deposit in Southern British Columbia","authors":"Paul L. Broughton","doi":"10.3749/2300015","DOIUrl":"https://doi.org/10.3749/2300015","url":null,"abstract":"ABSTRACT The tufa-travertine deposit at Angel Springs developed through the interaction of thermal waters with bedrock of the Proterozoic Okanagan Gneiss, which extends along the eastern margin of the Okanagan Valley fault system in south-central British Columbia. This warm spring is proximal to Miocene plateau basalt flows that cut the Okanagan Gneiss bedrock eastward of the Okanagan Valley. The carbonate deposit, which is widely referenced as tufa, consists of a tufa and an overlying travertine. These texturally and petrographically different deposits developed in response to a shift in the groundwater pathway wherein the surface discharge transitioned from multiple vents of the tufa to a single downslope vent pool of the overlying travertine. Lower interval tufa fabrics are characterized by networks of fenestral-type porosity supported by a framework of curvilinear stromatolitic sheets of calcite that resulted from the partial coalescence of sub-horizontal arrays of calcite-encrusted cyanobacteria. These tufa fabrics aligned with the strong stream flow emanating from multiple vents. In contrast, radial crystal fan fabrics of the upper interval travertine developed with the transition from biotic calcite encrustations of upward branching cyanobacteria to the abiotic development of radial crystal fans. Length-long mouldic porosity tubules were occluded as the abiotic sheaf- and fan-shaped crystal growth surfaces expanded radially with rapid degassing. Core areas of the radial crystal arrays coalesced and were partially recrystallized, resulting in spheroidal crystalline fabrics that preserve inclusion-delineated concentric growth surfaces. Syntaxial overgrowths of radially aligned acicular crystals rapidly expanded from these core areas of coalesced calcite, resulting in the formation of abiotic radial-acicular and starburst crystal arrangements. The biotic–abiotic transition resulted in the rapid growth of abiotic crystal fans as the dominant deposition process of the upper interval travertine fabrics, but not in the lower interval tufa fabrics. Activities of sulfate-reducing bacteria in the sulfate-rich thermal water of both intervals resulted in precipitation of rosickýite, the monoclinic polymorph of S, as nanocrystalline globular protuberances on surfaces of calcite crystals. This is the first recorded occurrence of rosickýite in a tufa-travertine deposit and the first recognition of this mineral in Canada.","PeriodicalId":218967,"journal":{"name":"The Canadian Journal of Mineralogy and Petrology","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135111532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}