├───────────────┼─────────────────┼─────────────────┼─────────────────┤ │6. CYSTIC. │Very like the │It consists of │It is a rare │ │ │ Triple │ _Cystic Oxide_;│ species. │ │ │ Calculus, but │ under the │ │ │ │ it is │ blow-pipe it │ │ │ │ unstratified │ yields a │ │ │ │ and more │ peculiarly │ │ │ │ compact, and │ fetid odour. It│ │ │ │ homogeneous. │ is soluble in │ │ │ │ │ acids, and in │ │ │ │ │ alkalies even │ │ │ │ │ if they are │ │ │ │ │ fully saturated│ │ │ │ │ with carbonic │ │ │ │ │ acid. │ │ ├───────────────┼─────────────────┼─────────────────┼─────────────────┤ │7. ALTERNATING.│Its section │Compound of │ │ │ │ exhibits │ several │ │ │ │ different │ species, │ │ │ │ concentric │ alternating │ │ │ │ laminæ. │ with each │ │ │ │ │ other. │ │ ├───────────────┼─────────────────┼─────────────────┼─────────────────┤ │8. COMPOUND. │No characteristic│The ingredients │ │ │ │ form. │ are separable │ │ │ │ │ only by │ │ │ │ │ chemical │ │ │ │ │ analysis. │ │ └───────────────┴─────────────────┴─────────────────┴─────────────────┘