CONFETTI DI TIVOLI. 

 Brit. Mus., Case 4. 



M. P. G. Principal Floor, Wall-case 2 

 (British). 

 Confetti di Tivoli. See Dragees de 

 i Tivoli. 



\ CoNFOLENSiTE. A Variety of Halloysite 

 from Confolens, Dept. of tlie Charente. 



CoNiCHALCiTE. A reniform and massive 

 mineral, nearly allied to Olivenite and Vol- 

 borthite, of a pistachio-green colour, in- 

 clining to emerald -green. Subtranslucent. 

 Streak same as the colour. Brittle, Frac- 

 ture splinter}'. H. ^-5. S.G. 4-12. 



Comp. (Cu, Ca)4 (P, 



As) + 1-5 H, with 



irt of the phosphoric 



acid 



replaced by 



madic acid. 







Analysis by Fritzsche : 







Arsenic acid 





. 30-68 



Phosphoric acid . 





. 8-81 



Vanadic acid 





. 1-78 



Oxide of copper . 





. 31-76 



Lime 





. 21-36 



Water . . . 





. 6-61 



100-00 

 Locality. Probably Hinajosa de Cordova. 

 in Andalusia, Spain. 



CoNiSTONiTE, Greg. Rhombic. Colour- 

 less. Transparent to translucent. Lustre 

 vitreous. Slightly sectile. Fracture small- 

 conchoidal, uneven. S.G. 2-052. 



Comp. Hydrated oxalate of lime, Ca -C- 



.7H. 





Analysis : 





Oxalic acid 



. 28-017 



Lime .... 



. 21-055 



Soda and magnesia 



. 0-822 



Water 



. 49-155 



99-049 

 Locality. Coniston in Cumberland. 

 Conistonite has been shown to be a result 

 of accidental admixture. 



CoNiTE, FriesJehen. A variety of Dolo- 

 mite, of a flesh-red colour, coated'externally 

 with Iron-ochre. Opaque. Brittle. Frac- 

 ture fine- grained or imperfect conchoidal. 

 Scratches glass. S.G. 3. 



Comp. CCa + 3MgC. 



Analysis from j\Ieissner, by John : ' 

 Carbonate of lime . . 28-0 



Carbonate of magnesia . 67-4 



Carbonate of iron . .3-5 



Water . . . . .1-0 



98-9 

 Localities. It occurs amorphous, massive, 



COPIAPITE. 93 



and in crusts at Down Hill, co. Derry, in 

 Ireland ; in Iceland ; on the Meissner in 

 Hessia, and in Saxony. 

 Brit. Mus., Case 49. 



Fig. 127 



CoNNELLiTE, Brooke §' 3Iiller. Hexagonal. 

 Occurs in smalt-blue to deep BerJin-blue 

 hexagonal prisms with truncated edges. 

 Lustre vitreous. Translucent. 



Comp. Supposed, according to Connell, to 

 be a compound of chloride and sulphate of 

 copper, and a little water. 



This is an extremely rare mineral, stated 

 to have been found in •Cornwall at Huel 

 Providence, and at Carharrack in St. Day. 



Brit. Mus., Case 56. 



CoPALE FossiLE, Dufreuoy ; or Copaline, 

 Hausmann, Nicol. A fossil resin. Is found in 

 irregular pieces of a pale yellowish and dirty- 

 brown colour, resembling the resin copal in 

 colour, lustre, transparenc}^ hardness, and 

 difficult solubility in alcohol. Yields easily 

 to the knife. Brittle. H. 2-5. S.G. 1-04. 



Comp. 40C, 32H, 0. 



Analysis, from Highgate, by Joiinson : 

 Carbon .... 85-408 

 Hvdrogen .... 11-787 

 Oxvgen .... 2-669 

 Aslies .... 0-136 



100-000 



Emits an aromatic and resinous odour 

 Avhen broken and heated. Melts easily to 

 a limpid fluid. Volatilizes in the air by a 

 gentle heat, and burns with a clear yellow 

 flame and much smoke, leaving voi-y little 

 residue. Slightly soluble in alcohol. 



Locality. Hig-hgate Hill, N. of London, 

 in London Clay. 



Another resin (from the walls of a trap- 

 dyke, at an old lead mine in Northum- 

 berland, called Settling Stones), has been de- 

 scribed by Johnston as resembling Copaline 

 in external appearance, but consisting of 

 carbon 85-133, hvdrogen 10-853, ashes 3-256 

 ==99-242, or nearly 4C, 3H. 



CopiAPiTE, Haidinger. Occurs in small 

 3'ellow grains, sometimes composed of deli- 

 cate hexagonal tables ; also fibrous and in- 

 crusting. Translucent, with a pearly lustre. 



Comp. 5^62^5 + 18 H. 



Analysis of foliated specimen, by H. Rose: 



