the world > the earth > structure of the earth > constituent materials > rock > [noun] > a rock > boulder > types of
whinstonea1585
Saracen's stone1644
grey wethers1660
sarsena1697
grey goose1816
Moeraki boulder1879
1644 R. SymondsDiary (1859) 151 A place so full of a grey pibble stone of great bignes as is not usually seene.., the inhabaitants calling them Saracens' stones.