TY - JOUR

T1 - Specific internal structure of diamonds from zarnitsa kimberlite pipe

AU - Ragozin, Alexey

AU - Zedgenizov, Dmitry

AU - Kuper, Konstantin

AU - Palyanov, Yuri

PY - 2017/5/11

Y1 - 2017/5/11

N2 - The Zarnitsa kimberlite pipe is one of the largest pipes of the Yakutian diamondiferous province. Currently, some limited published data exists on the diamonds from this deposit. Among the diamond population of this pipe there is a specific series of dark gray to black diamonds with transition morphologies between octahedron and rounded rhombic dodecahedron. These diamonds have specific zonal and sectorial mosaic-block internal structures. The inner parts of these crystals have polycrystalline structure with significant misorientations between sub-individuals. The high consistency of the mechanical admixtures (inclusions) in the diamonds cores can cause a high grid stress of the crystal structure and promote the block (polycrystalline) structure of the core components. These diamond crystals have subsequently been formed due to crystallization of bigger sub-individuals on the polycrystalline cores according to the geometric selection law.

AB - The Zarnitsa kimberlite pipe is one of the largest pipes of the Yakutian diamondiferous province. Currently, some limited published data exists on the diamonds from this deposit. Among the diamond population of this pipe there is a specific series of dark gray to black diamonds with transition morphologies between octahedron and rounded rhombic dodecahedron. These diamonds have specific zonal and sectorial mosaic-block internal structures. The inner parts of these crystals have polycrystalline structure with significant misorientations between sub-individuals. The high consistency of the mechanical admixtures (inclusions) in the diamonds cores can cause a high grid stress of the crystal structure and promote the block (polycrystalline) structure of the core components. These diamond crystals have subsequently been formed due to crystallization of bigger sub-individuals on the polycrystalline cores according to the geometric selection law.

KW - Diamond

KW - Diffraction of backscattered electrons

KW - Internal structure

KW - Radial mosaic pattern

KW - Zarnitsa kimberlite pipe

KW - HABIT

KW - INCLUSIONS

KW - diffraction of backscattered electrons

KW - radial mosaic pattern

KW - NATURAL DIAMOND

KW - MANTLE

KW - diamond

KW - internal structure

KW - EVOLUTION

KW - DISSOLUTION

KW - CRYSTAL MORPHOLOGY

KW - NORTHEASTERN SIBERIAN PLATFORM

KW - BIREFRINGENCE

KW - PLACERS

UR - http://www.scopus.com/inward/record.url?scp=85019268194&partnerID=8YFLogxK

U2 - 10.3390/cryst7050133

DO - 10.3390/cryst7050133

M3 - Article

AN - SCOPUS:85019268194

VL - 7

JO - Crystals

JF - Crystals

SN - 2073-4352

IS - 5

M1 - 133

ER -