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Figure 3
(a) Frequency spectrum analysis of 403 carbon-bearing minerals, with 82 922 individual mineral–locality data (from as of January 2015). (b) Prediction of the mineral species accumulation curve (All), which plots the number of expected carbon mineral species (y axis) as additional mineral species/locality data (x axis) are discovered. The vertical dashed line indicates data recorded. Images taken with permission from Hazen et al. (2016BB98).

ISSN: 2052-5206
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