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They are likely related to the diamond fibers, undergoing intense splitting and rotation during ballas formation. These features are enriched in N3 nitrogen-related defects.",0,"2025-08-11 12:14:18",{"id":11,"name":22,"entrytype":19,"csystem":23,"ima_formula":15,"mindat_formula":15,"hmin":24,"hmax":24,"dmeas":25,"dcalc":26,"strunz10ed1":27,"primary_image_id":28},"Diamond","Isometric",10,"3.5","3.515","1",52311,[],[],[],[],[],5,[36,41,45,50,55,60,65,70],{"id":37,"year":38,"html":39,"doi":40},2465500,1961,"FISCHER, ROLAND BARTON (1961) The ‘Ballas’ Form of Diamond. \u003Ci>Nature\u003C\u002Fi>, 189 (4758). 50 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1038\u002F189050a0'>doi:10.1038\u002F189050a0\u003C\u002Fa>","10.1038\u002F189050a0",{"id":42,"year":43,"html":44,"doi":8},525946,1972,"Trueb, Lucien F., Barrett, Charles S. (1972) Microstructural investigation of ballas diamond. \u003Ci>American Mineralogist\u003C\u002Fi>,  57 (11-12) 1664-1680 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM57\u002FAM57_1664.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":46,"year":47,"html":48,"doi":49},16409361,1985,"DeVries, R. C., Robertson, C. (1985) The microstructure of ballas (polycrystalline diamond) by electrostatic charging in the SEM. \u003Ci>Journal of Materials Science Letters\u003C\u002Fi>, 4 (6) 805-807 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fbf00726997'>doi:10.1007\u002Fbf00726997\u003C\u002Fa>","10.1007\u002Fbf00726997",{"id":51,"year":52,"html":53,"doi":54},8008242,1997,"Lux, B., Haubner, R., Holzer, H., DeVries, R.C. (1997) Natural and synthetic polycrystalline diamond, with emphasis on ballas. \u003Ci>International Journal of Refractory Metals and Hard Materials\u003C\u002Fi>, 15 (5). 263-288 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fs0263-4368(97)87503-8'>doi:10.1016\u002Fs0263-4368(97)87503-8\u003C\u002Fa>","10.1016\u002Fs0263-4368(97)87503-8",{"id":56,"year":57,"html":58,"doi":59},8008761,2002,"Haubner, Roland, Lux, Benno (2002) Deposition of ballas diamond and nano-crystalline diamond. \u003Ci>International Journal of Refractory Metals and Hard Materials\u003C\u002Fi>, 20 (2). 93-100 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fs0263-4368(02)00006-9'>doi:10.1016\u002Fs0263-4368(02)00006-9\u003C\u002Fa>","10.1016\u002Fs0263-4368(02)00006-9",{"id":61,"year":62,"html":63,"doi":64},8078621,2015,"Laptev, A. I. (2015) THE CLASSIFICATION OF SYNTHETIC POLYCRYSTALLINE DIAMOND “BALLAS” AND “CARBONADO”. \u003Ci>Izvestiya Visshikh Uchebnykh Zavedenii. Chernaya Metallurgiya = Izvestiya. Ferrous Metallurgy\u003C\u002Fi>, 57. 51pp. \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.17073\u002F0368-0797-2014-1-51-55'>doi:10.17073\u002F0368-0797-2014-1-51-55\u003C\u002Fa>","10.17073\u002F0368-0797-2014-1-51-55",{"id":66,"year":67,"html":68,"doi":69},13863135,2020,"Pavlushin, Anton, Zedgenizov, Dmitry, Vasil’ev, Evgeny, Kuper, Konstantin (2020) Morphology and Genesis of Ballas and Ballas-Like Diamonds. \u003Ci>Crystals\u003C\u002Fi>,  11 (1). 17 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3390\u002Fcryst11010017'>doi:10.3390\u002Fcryst11010017\u003C\u002Fa>","10.3390\u002Fcryst11010017",{"id":71,"year":72,"html":73,"doi":74},15791776,2023,"Shiryaev, Andrei A., Kaminsky, Felix V., Pavlushin, Anton D., Yapaskurt, Vasily O., Zolotov, Denis A., Averin, Alexei A., Zhilicheva, Olga M., Nickolsky, Maximilian S., Kuznetsova, Olga V. (2023) Structural Peculiarities of Natural Ballas—Spheroidal Variety of Polycrystalline Diamond. \u003Ci>Crystals\u003C\u002Fi>, 13 (4) 624 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3390\u002Fcryst13040624'>doi:10.3390\u002Fcryst13040624\u003C\u002Fa>","10.3390\u002Fcryst13040624",[],[],[],[],{"history":8,"applications":8}]