Although magnetic signatures of known kimberlites are not indicative of diamond content, the potential of the Stein cluster of high interest targets is further reinforced by heavy mineral samples collected down ice which contain indicator mineral grains that are indicative of diamond inclusion chemistry showing high chrome, low calcium G10D pyrope
The indicator mineral suite contains grains that are indicative of diamond inclusion chemistry showing high chrome, low calcium G10D pyrope
On the basis of the type, the global garnet market is segmented into almandine, andradite, grossular, pyrope
, spessartine, and uvarovite.
The optical absorption spectra of the garnets almandine-pyrope, pyrope
and spessartine and some structural interpretations of mineralogical significance.
Almandine, spessartine, grossular, uvarovite, andradite and pyrope
are six minerals which are regarded as belonging to the garnet family.
To date, the elastic properties of pyrope
have been studied extensively by multianvil apparatus and diamond anvil cell [6,15-22].
Consider the (m - 1)-dimensional pyrope
[P.sub.m-1] := conv ([[-1,0].sup.m-1] [union] [[1,0].sup.m-1]), i.e.
For the most part pyrope
does not occur in collectible crystals; nevertheless, in "Pyrope
from the Dora-Maira Massif" (Gilla Simon) collectors can learn about a geologically unique occurrence in Italy, and in "The Fiery-Eyed Volcanoes of Bohemia" (Jiri Kourimsky and Jaroslay Hyrsl) there's a sketch of the 2,000-year history of mining Bohemian gem pyropes
which originate in Tertiary-age volcanic rocks.
The first of these is pyrope
garnet, the name coming from the Greek word for fiery.
This property is host to pyrope
beach sands dominated by favourable G10 pyrope
Five G-9 garnets and 12 orange garnets were high-magnesium pyrope
garnets with high titanium content indicating a strong eclogitic component.
Figure 9 shows a theoretical background that has been fitted to a spectrum of pyrope
garnet at 2.16 keV and 8.14 keV.