Anacardium spp. of the family Anacardiaceae, including at least Anacardium excelsum,Anacardium giganteum, and Anacardium occidentale
my samples: NOTE: these pics were all taken in very bright incandescent lighting ("soft white" at 2700K) colors will vary under other lighting conditions
both sides of a sample plank of cashew / Anacardium occidentale --- HUGE enlargements are present. This sample was loaned to me by David Clark whom I thank for this and other contributions to the site.
end grain and end grain closeup of the piece directly above