Major and trace element composition of olivine from magnesian skarns and silicate marbles

Abstract Olivine is a major rock-forming mineral in various magmatic and metamorphic rocks the upper mantle. In this paper, we present first high-precision analyses of olivine from 15 samples magnesian skarns silicate marbles (MSSM) collection Fersman Mineralogical Museum (Moscow, Russia). Mg# [Mg/(Mg+Fe2+)·100, mol%] studied varies 86 to nearly 100. The main distinctive features are anomalously low contents Co (<51 mg/g), Cr (<5 Ni (<44 mg/g) high content B (23–856 which correlate with host-rock compositions. Phosphorus (5–377 incorporation charge balanced by Li (0.15–61 Na (<14.3 mg/g). Y REE exhibit positive correlations Na, suggests that into MSSM could occur via charge-balanced coupled substitution at temperature aSiO2 conditions during formation. documented compositional can help reconstruct genesis host-rocks identify xenocrysts rocks.