▪ I. † conchite1 Obs.
(ˈkɒŋkaɪt)
[ad. Gr. κογχίτης (λίθος) shelly stone, a shelly marble: see -ite.]
A stone resembling a shell, a fossil shell.
| 1677 Plot Oxfordsh. 100 The Conchites or Cockle-stones found in this County. 1693 Bp. Nicolson Let. to Mr. Lhwyd (T.), We have a hard gray limestone or marble, which is full of conchites. 1758 Borlase Nat. Hist. Cornw. 279 Fossil shells such as pectunculi, conchites. |
▪ II. conchite2 Min.
(ˈkɒŋkaɪt)
[ad. G. conchit (A. Kelly 1900, in Sitzungsb. Math.-Phys. Classe Akad. der Wissenschaften zu München XXX. 187), f. conch: see -ite1.]
A form of calcium carbonate, identical with aragonite, found in the shells of molluscs.
| 1900 Min. Mag. XII. 366 Conchite resembles aragonite and ktypeite. 1951 C. Palache et al. Dana's Syst. Min. II. 191 Conchite..was a name given to a supposed new polymorph of CaCO3 occurring in certain shells later shown to be aragonite. |