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Chemical Diffusion in Watermelon Tourmaline : Parallel Versus Perpendicular to C-axis
The chemical composition of tourmaline can provide unique insights into the thermal evolution of their growth environment, including that of pegmatites (in igneous systems) and hydrothermal veins (in metamorphic systems). ...
Color in Watermelon Tourmaline : The Role of Hydroxyl Diffusion
Tourmaline is a semiprecious gemstone known in the geologic community known for its complex chemical formula. This is because the crystal structure of tourmaline can incorporate and contain numerous elements from the ...