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American Mineralogist最新文献

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Raman spectroscopic measurements on San Carlos olivine up to 14 GPa and 800 K: Implication for thermodynamic properties 拉曼光谱测量的圣卡洛斯橄榄石高达14 GPa和800 K:对热力学性质的含义
3区 地球科学
American Mineralogist Pub Date : 2023-11-01 DOI: 10.2138/am-2023-9052
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引用次数: 0
The Crystal Structure of Feitknechtite (β-MnOOH) and a new MnOOH Polymorph feitknechite (β-MnOOH)的晶体结构及一种新的MnOOH多晶
3区 地球科学
American Mineralogist Pub Date : 2023-11-01 DOI: 10.2138/am-2022-8729
Jeffrey E. Post, Peter J. Heaney, Eugene S. Ilton, Evert J. Elzinga
{"title":"The Crystal Structure of Feitknechtite (β-MnOOH) and a new MnOOH Polymorph","authors":"Jeffrey E. Post, Peter J. Heaney, Eugene S. Ilton, Evert J. Elzinga","doi":"10.2138/am-2022-8729","DOIUrl":"https://doi.org/10.2138/am-2022-8729","url":null,"abstract":"Abstract Studies suggest that feitknechtite (β-MnOOH) is a prevalent, and perhaps necessary, intermediate phase during the synthesis of birnessite-like phases, the abiotic oxidation of Mn2+, and the transformation of biogenic hexagonal phyllomanganates to more complex Mn oxides in laboratory and natural systems. Researchers have generally described feitknechtite as consisting of pyrochroite-like (or cadmium iodide-like) Mn-O octahedral layers, but a detailed crystal structure has not been reported. We used TEM/SAED and powder XRD and Rietveld refinements to derive the unit cell and, for the first time, report a complete structure description for feitknechtite (β-MnOOH). Rietveld refinements were also completed for three natural feitknechtite/hausmannite samples, and time-resolved synchrotron XRD experiments were used to follow the thermal transformation of feitknechtite to hausmannite. Additionally, we identified and report the structure for a second, and perhaps novel, MnOOH polymorph (proposed designation ε-MnOOH), mixed with the synthetic feitknechtite, that is similar to β-MnOOH but with a different layer stacking.","PeriodicalId":7768,"journal":{"name":"American Mineralogist","volume":"178 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136103081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A neutron diffraction study of the hydrous borate inderborite, CaMg[B3O3(OH)5]2(H2O)4·2H2O 含水硼酸盐岩CaMg[B3O3(OH)5]2(H2O)4·2H2O的中子衍射研究
3区 地球科学
American Mineralogist Pub Date : 2023-11-01 DOI: 10.2138/am-2023-9162
{"title":"A neutron diffraction study of the hydrous borate inderborite, CaMg[B3O3(OH)5]2(H2O)4·2H2O","authors":"","doi":"10.2138/am-2023-9162","DOIUrl":"https://doi.org/10.2138/am-2023-9162","url":null,"abstract":"","PeriodicalId":7768,"journal":{"name":"American Mineralogist","volume":"30 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135062274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Magmatic degassing and fluid metasomatism promote compositional variation from I-type to peralkaline A-type granite in late Cretaceous Fuzhou felsic complex, SE China 岩浆脱气和流体交代作用促进了晚白垩世福州长英杂岩从i型到过碱性a型花岗岩的成分变化
3区 地球科学
American Mineralogist Pub Date : 2023-11-01 DOI: 10.2138/am-2023-8936
{"title":"Magmatic degassing and fluid metasomatism promote compositional variation from I-type to peralkaline A-type granite in late Cretaceous Fuzhou felsic complex, SE China","authors":"","doi":"10.2138/am-2023-8936","DOIUrl":"https://doi.org/10.2138/am-2023-8936","url":null,"abstract":"","PeriodicalId":7768,"journal":{"name":"American Mineralogist","volume":"30 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135062273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Passive carbon sequestration associated with wollastonite mining, Adirondack Mountains, New York 与硅灰石开采相关的被动碳封存，阿迪朗达克山脉，纽约
3区 地球科学
American Mineralogist Pub Date : 2023-11-01 DOI: 10.2138/am-2022-8622
{"title":"Passive carbon sequestration associated with wollastonite mining, Adirondack Mountains, New York","authors":"","doi":"10.2138/am-2022-8622","DOIUrl":"https://doi.org/10.2138/am-2022-8622","url":null,"abstract":"","PeriodicalId":7768,"journal":{"name":"American Mineralogist","volume":"21 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136172291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Highlights and Breakthroughs The search for a universal law of crystal growth: The law of proportionate effect? 寻找晶体生长的普遍规律:比例效应定律?
3区 地球科学
American Mineralogist Pub Date : 2023-10-01 DOI: 10.2138/am-2023-9182
{"title":"Highlights and Breakthroughs The search for a universal law of crystal growth: The law of proportionate effect?","authors":"","doi":"10.2138/am-2023-9182","DOIUrl":"https://doi.org/10.2138/am-2023-9182","url":null,"abstract":"","PeriodicalId":7768,"journal":{"name":"American Mineralogist","volume":"2013 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135323149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Machine-learning oxybarometer developed using zircon trace-element chemistry and its applications 利用锆石微量元素化学开发的机器学习氧气压表及其应用
IF 3.1 3区 地球科学
American Mineralogist Pub Date : 2023-10-01 DOI: 10.2138/am-2023-8978
{"title":"Machine-learning oxybarometer developed using zircon trace-element chemistry and its applications","authors":"","doi":"10.2138/am-2023-8978","DOIUrl":"https://doi.org/10.2138/am-2023-8978","url":null,"abstract":"","PeriodicalId":7768,"journal":{"name":"American Mineralogist","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46820849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Zhengminghuaite, Cu6Fe3As4S12, a new sulfosalt mineral from the Zimudang Carlin-type gold deposit in southwestern Guizhou, China 黔西南紫木荡卡林型金矿床中一种新的硫盐矿物Cu6Fe3As4S12
IF 3.1 3区 地球科学
American Mineralogist Pub Date : 2023-10-01 DOI: 10.2138/am-2023-9078
{"title":"Zhengminghuaite, Cu6Fe3As4S12, a new sulfosalt mineral from the Zimudang Carlin-type gold deposit in southwestern Guizhou, China","authors":"","doi":"10.2138/am-2023-9078","DOIUrl":"https://doi.org/10.2138/am-2023-9078","url":null,"abstract":"","PeriodicalId":7768,"journal":{"name":"American Mineralogist","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46082152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermoelastic properties of natural zircon – Part I: Non-metamict zircon 天然锆石的热弹性特性。第1部分:非变质锆石
IF 3.1 3区 地球科学
American Mineralogist Pub Date : 2023-10-01 DOI: 10.2138/am-2023-8986
Marie Münchhalfen, Jürgen Schreuer
{"title":"Thermoelastic properties of natural zircon – Part I: Non-metamict zircon","authors":"Marie Münchhalfen, Jürgen Schreuer","doi":"10.2138/am-2023-8986","DOIUrl":"https://doi.org/10.2138/am-2023-8986","url":null,"abstract":"9 The thermoelastic properties and thermal expansion of natural single-crystal zircon without detectable 10 radiation damage were determined in the temperature range between 100 K and 1650 K on five 11 samples from Cambodia, Sri Lanka, and Tanzania. Up to about 1500 K, the results are in excellent 12 agreement and fully reversible. The average adiabatic elastic stiffness coefficients at room temperature 13 in GPa are c 11 = 426.8(6), c 12 = 68.1(4), c 13 = 152.0(4), c 33 = 490.8(9), c 44 = 113.1(2) and c 66 = 49.0(1). 14 Polycrystalline averaging for the aggregate bulk and shear modulus (Voigt-Reuss-Hill average) yield K 15 = 229.3(4) GPa and G = 109.3(1) GPa. From 293 K to 1573 K, the elastic stiffnesses soften almost 16 linearly with the temperature coefficients in MPa/K: d c 11 /d T = -45.36(7), d c 12 /d T = -2.03(7), d c 13 /d T = - 17 9.59(7), d c 33 /d T = -42.85(12), d c 44 /d T = -9.60(3), and d c 66 /d T = -2.19(1). Below room temperature, the 18 behavior of the c ij is non-linear, with decreasing absolute values of the temperature coefficients. Above 19 about 1500 K, a temperature-and time-dependent irreversible elastic stiffening accompanied by an 20 increasing ultrasound dissipation was observed in all samples. These anomalies are interpreted to be the 21 consequence of increased dislocation densities.","PeriodicalId":7768,"journal":{"name":"American Mineralogist","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48501329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
New Mineral Names: Heavy metal and minerals from China 新矿物名称:来自中国的重金属和矿物
3区 地球科学
American Mineralogist Pub Date : 2023-10-01 DOI: 10.2138/am-2023-nmn108106
Aaron J. Celestian
{"title":"New Mineral Names: Heavy metal and minerals from China","authors":"Aaron J. Celestian","doi":"10.2138/am-2023-nmn108106","DOIUrl":"https://doi.org/10.2138/am-2023-nmn108106","url":null,"abstract":"Abstract This issue of New Mineral Names summarizes new species that contain toxic heavy metals and rare earth elements with a partial focus on new minerals found in China. All these new minerals have potential uses for environmental and technological applications, and their origins reflect historical mining or cultural significance. Here we look at fluorbritholite-(Nd), napoliite, scenicite, evseeite, haitaite-(La), dongchuanite, liguowuite, and gysinite-(La).","PeriodicalId":7768,"journal":{"name":"American Mineralogist","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135458453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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