conchoidal
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beryllonite
ck_admin
March 24, 2021
So called because of the presence of beryllium, it was named by James Dana in 1888.
barytocalcite
ck_admin
March 24, 2021
Discovered in 1824 in England, it was named after its composition, it contains barium as much as barite and it is a carbonate (calcium, as calcite, but with the addition of barium).