Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
STRUCTURAL AND CHEMICAL INVESTIGATION OF A ZONED SYNTHETIC Cu-RICH TOURMALINE. / Ertl, A.; Vereshchagin, O.S.; Giester, G.; Tillmanns, E.; Meyer, H.-P.; Ludwig, T.; Rozhdestvenskaya, I.V.; Frank-Kamenetskaya, O.V.
в: Canadian Mineralogist, Том 53, № 2, 2015, стр. 209-220.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - STRUCTURAL AND CHEMICAL INVESTIGATION OF A ZONED SYNTHETIC Cu-RICH TOURMALINE
AU - Ertl, A.
AU - Vereshchagin, O.S.
AU - Giester, G.
AU - Tillmanns, E.
AU - Meyer, H.-P.
AU - Ludwig, T.
AU - Rozhdestvenskaya, I.V.
AU - Frank-Kamenetskaya, O.V.
PY - 2015
Y1 - 2015
N2 - A synthetic Cu-rich tourmaline crystal (Lebedev et al. 1988) consists of three different zones. Each zone was characterized by EMPA, SIMS, and single-crystal structure refinement (SREF). The first zone (which crystallized directly on the seed crystal) has the formula ~X(Na0.8□0.2) Y(Al2.0Cu0.9□0.1) ZAl6 T(Si5.1Al0.9)O18 (BO3)3 V(OH)3 W[O0.7F0.2(OH)0.1] with lattice parameters a 15.835(1), c 7.093(1) Å (R = 2.4%). The second zone has the formula ~X(Na0.8□0.2) Y(Al1.8Cu1.1□0.1) ZAl6 T(Si5.1Al0.7B0.2)O18 (BO3)3 V(OH)3 W[(OH)0.4F0.3O0.3] with a 15.824(1), c 7.087(1) Å (R = 2.3%). The third zone (highest Cu content with ~14 wt.% CuO) has the formula X(Na0.81□0.19) Y(Cu1.72Al1.21□0.07) Z(Al5.96Cu0.04) (BO3)3 T(Si5.17Al0.48B0.35)O18 V(OH)3 W[(OH)0.63F0.37] with a 15.849(1), c 7.087(1) Å (R = 2.5%). While [4]Al decreases from zone 1 to zone 3, [4]B increases (by chemistry and SREF), which could be explained by a decreasing temperature during tourmaline crystallization. Such a T-site occupancy is in agreement with the
AB - A synthetic Cu-rich tourmaline crystal (Lebedev et al. 1988) consists of three different zones. Each zone was characterized by EMPA, SIMS, and single-crystal structure refinement (SREF). The first zone (which crystallized directly on the seed crystal) has the formula ~X(Na0.8□0.2) Y(Al2.0Cu0.9□0.1) ZAl6 T(Si5.1Al0.9)O18 (BO3)3 V(OH)3 W[O0.7F0.2(OH)0.1] with lattice parameters a 15.835(1), c 7.093(1) Å (R = 2.4%). The second zone has the formula ~X(Na0.8□0.2) Y(Al1.8Cu1.1□0.1) ZAl6 T(Si5.1Al0.7B0.2)O18 (BO3)3 V(OH)3 W[(OH)0.4F0.3O0.3] with a 15.824(1), c 7.087(1) Å (R = 2.3%). The third zone (highest Cu content with ~14 wt.% CuO) has the formula X(Na0.81□0.19) Y(Cu1.72Al1.21□0.07) Z(Al5.96Cu0.04) (BO3)3 T(Si5.17Al0.48B0.35)O18 V(OH)3 W[(OH)0.63F0.37] with a 15.849(1), c 7.087(1) Å (R = 2.5%). While [4]Al decreases from zone 1 to zone 3, [4]B increases (by chemistry and SREF), which could be explained by a decreasing temperature during tourmaline crystallization. Such a T-site occupancy is in agreement with the
KW - tourmaline
KW - crystal structure
KW - synthesis
KW - chemistry
KW - copper
KW - Jahn-Teller effect.
U2 - 10.3749/canmin.1400078
DO - 10.3749/canmin.1400078
M3 - Article
VL - 53
SP - 209
EP - 220
JO - Canadian Mineralogist
JF - Canadian Mineralogist
SN - 0008-4476
IS - 2
ER -
ID: 3969103