Structural and Mineralogical Features of Diamonds from the Lomonosov Deposit (Arkhangelsk Province): New Data and Interpretation
- Authors: Kriulina G.Y.1, Vasiliev E.A.2, Garanin V.K.3
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Affiliations:
- Department of Geology, Moscow State University
- St. Petersburg Mining University
- Fersman Mineralogical Museum, Russian Academy of Science
- Issue: Vol 486, No 2 (2019)
- Pages: 627-629
- Section: Geology
- URL: https://journals.rcsi.science/1028-334X/article/view/195057
- DOI: https://doi.org/10.1134/S1028334X19060291
- ID: 195057
Cite item
Abstract
Three groups of diamond crystals that differ in morphology, photoluminescence, infrared absorption, and thermal history were discovered in the Lomonosov deposit. The first group crystals are mostly octahedrons with minor signs of dissolution and a large share of nitrogen in the form of B defects. The crystals of the second type are strongly resorbed dodecahedroids with a small share of B defects. The third group consists of crystals with low-temperature С defects; they are cuboids that are often without traces of resorption, and tetrahexahedroids. These patterns indicate the polygenicity of the diamond in the Lomonosov deposit.
About the authors
G. Yu. Kriulina
Department of Geology, Moscow State University
Email: simphy12@mail.ru
Russian Federation, Moscow, 119234
E. A. Vasiliev
St. Petersburg Mining University
Author for correspondence.
Email: simphy12@mail.ru
Russian Federation, St. Petersburg,
199106
V. K. Garanin
Fersman Mineralogical Museum, Russian Academyof Science
Email: simphy12@mail.ru
Russian Federation, Moscow, 119071