@article{fdi:010070892, title = {{P}ink and red spinels in marble: trace elements, oxygen isotopes, and sources}, author = {{G}iuliani, {G}aston and {F}allick, {A}. {E}. and {B}oyce, {A}. {J}. and {P}ardieu, {V}. and {P}ham, {V}. {L}.}, editor = {}, language = {{ENG}}, abstract = {{T}he oxygen isotopic composition of pink to red and other colored spinels hosted by marbles worldwide have been combined with trace elements investigated by electron microprobe analysis ({EMPA}). {F}or the first time, this database enables the characterization of the geographic origin of the main productive and historical sources of gem spinel. {T}hree consistent sets of delta {O}-18 values were found for primary and placer deposits: (1) between 5.6 and 8.6% for the historical {K}uh-i-{L}al spinels from {T}ajikistan; (2) from 12.1 to 18.5% for spinels from {A}n {P}hu and {C}ong {T}roi in {V}ietnam, and {N}amya from {M}yanmar; and (3) between 19.0 and 24.2% for spinels from {P}aigutan in {N}epal, {K}iswila and {I}panko in {T}anzania, {P}amreso in {K}enya, {M}ogok in {M}yanmar, and {A}n {P}hu in {V}ietnam. {T}he variation in the delta {O}-18 values for most of the deposits can be related to the buffering of the metamorphic fluids by the oxygen isotope composition of the impure marbles. {T}he delta {O}-18 values of {K}uh-i-{L}al spinels result from a metasomatic skarn process between granitic intrusives and marble. {T}race elements, such as {F}e-{Z}n-{C}r-{V}-{T}i, presented in various new chemical discrimination diagrams allow for the differentiation of all the pink to red spinels. {T}he slight overlaps observed for some chemical domains can be resolved by combination with the {O}-isotope composition of spinel. {T}he present study shows that it is possible to discriminate gem spinels hosted by marbles from different geographic regions of the world and provides new insights into the traceability of historical spinels such as those from {K}uh-i-{L}al.}, keywords = {marble ; pink and red spinel ; trace elements ; oxygen isotopes ; geographic ; origin ; {ASIE} ; {AFRIQUE} {DE} {L}'{EST} ; {TAJIKISTAN} ; {VIET} {NAM} ; {MYANMAR} ; {KENYA} ; {TANZANIE} ; {SRI} {LANKA} ; {NEPAL} ; {PAKISTAN} ; {AFGHANISTAN}}, booktitle = {}, journal = {{C}anadian {M}ineralogist}, volume = {55}, numero = {4}, pages = {743--761}, ISSN = {0008-4476}, year = {2017}, DOI = {10.3749/canmin.1700009}, URL = {https://www.documentation.ird.fr/hor/fdi:010070892}, }