Kamchatite’ diamond aggregate from northern Kamchatka, Russia:New find of diamond formed by gas phase condensation or chemical vapor deposition

doi:10.2138/am-2018-6708

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свойства и происхождение толбачинских алмазов1

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2019

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“…Дополнительными признаками природного происхождения камчатских алмазов являются примесь в них от 5 до 19 ат. % кремния (Kaminsky et al, 2019), который не используется в синтезах, и ассоциация с Fe-Mn силицидами (Силаев и др., 2019 б ). Последние не встречаются в связи с искусственными алмазами, но имеют широкое распространение в вулканических пеплах.…”

Section: свойства и происхождение толбачинских алмазовunclassified

On the History of the Discovery and Nature of Diamonds in Volcanic Rocks of Kamchatka

Гордеев¹,

Силаев²,

Карпов³

et al. 2019

Вест. ПГУ. Геология

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The history of the discovery of diamonds in the products of Kamchatka volcanic eruptions is briefly described, and the results of comprehensive studies of Tolbachin diamonds including crystallomorphology, faceted sculptures, xenomineral greases and films on the surface, nanomicroswitches, impurity elements, spectroscopic properties, isotopic composition of carbon and nitrogen are summarized. The conclusion is drawn about the natural origin of the Tolbachin diamonds formed directly in the volcanic ash-gas cloud by crystallization from gases stimulated by atmospheric electric discharges.

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Section: свойства и происхождение толбачинских алмазовunclassified