the world > the earth > minerals > types of mineral > sulphates > [noun] > barium sulphate
liverstone1587
ponderous spar1618
cauk1653
cawk1653
ponderous earth1780
baroselenite1786
barytes1789
heavy spar1789
terra ponderosa1794
hepatite1802
allomorphite1842
1618 P. AndersonColde Spring Kinghorne Craig sig. A3 Yea all the ponderous spar inclyneth rather towards the bottome, a signe doutles which argueth no rich metall.
1800 tr. E. J. B. Bouillon-Lagrange Man. Course Chem. I. 187 It [sc. barytes] was called Ponderous Earth, Ponderous Spar.