garnet
Concise Oxford English Dictionary © 2008 Oxford University Press:
garnet /ˈgɑːnɪt/
▶noun a precious stone consisting of a deep red vitreous silicate mineral.
– origin ME: prob. via MDu. from OFr. grenat, from med. L. granatus, perh. from granatum (see pomegranate), the garnet being similar in colour to the fruit's pulp.
'garnet' also found in these Oxford entries:

