Each species has its own chemistry, structure and story. These profiles summarise the properties we measure and the questions our research addresses.
Pure crystallised carbon formed deep in the mantle, studied for growth structure, clarity and light performance.
View DetailsChromium-bearing corundum prized for saturated red colour and natural red fluorescence.
View DetailsCorundum in every colour but red, best known for blues caused by iron and titanium.
View DetailsGreen beryl coloured by chromium and vanadium, with inclusion "gardens" that record its origin.
View DetailsViolet-blue zoisite from a single mining district, notable for strong pleochroism.
View DetailsCopper-bearing elbaite with vivid neon blue to green colour, studied for origin and chemistry.
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