Pure rock cristal of Madagascar 2.6530 Ditto of Brasil 2.6526 Ditto of Europe, or gelatinous 2.6548 Cristallized quartz 2.6546 Amorphous ditto 2.6471 Oriental agate 2.5901 Agate onyx 2.6375 Transparent calcedony 2.6640 Carnelian 2.6137 Sardonyx 2.6025 Prase 2.5805 Onyx pebble 2.6644 Pebble of Rennes 2.6538 White jade 2.9502 Green jade 2.9660 Red jasper 2.6612 Brown ditto 2.6911 Yellow ditto 2.7101 Violet ditto 2.7111 Gray ditto 2.7640 Jasponyx 2.8160 Black prismatic hexahedral schorl 3.3852 Black spary ditto 3.3852 Black amorphous schorl, called antique basaltes 2.9225 Paving stone 2.4158 Grind stone 2.1429 Cutler's stone 2.1113 Fountainbleau stone 2.5616 Scyth stone of Auvergne 2.5638 Ditto of Lorrain 2.5298 Mill stone 2.4835 White flint 2.5941 Blackish ditto 2.5817 Sec. 4. _Various Stones, &c._