APPENDIX. 



17 



s 



Ca 



H 



36-10 



31-66 



18-80=100 



31-51 



3114 



18-00=100 



This composition is near worthite, a hydrous fibrolite, but it differs from that mineral in 

 inferior hardness. 



B. B. swells up ; infusible and turns white. Not acted upon by acids. 

 Associated with pyrophyllite at Westana, Sweden. 



601 A. Wen-kworthite. H. Hoic, Phil. Mag-., April, 1871. 



In imbedded nodules, crystalline on fracture. Glistening. Colorless to white. Trans- 

 lucent. H. =2— 3. Composition: analyses 1. 2., H. How, 1. c. : 



Si B 



1. 3-31 (10-13) 



2. 4-98 (14-37) 



In the closed tube gives water. B. B., decrepitates and fuses readily to a clear bead, 

 coloring the flame green ; on continued blowing froths, becomes opaque and no longer shows 

 the green coloration. 



Found in gypsum at Winkworth, Nova Scotia. How considers No. 1 to be represented by 

 11 Ca. ISi, 9S, 3B and 20H, while No. 2 is the same with substitution of 8S and 4B. He 

 suggests that the mineral is intermediate between selenite and howlite. May it not be a 

 mixture ? 



92 A. Wolfachtte. F. Sandberc/er, Jahrb. Min., 1869, 313. 



T. Petersen, Pogg. Ann. cxxxvii. 397. Orthorhombic, in small crystals coating niccolite 

 Observed planes I. m-'i. H. =5'5. G-. =6.372. Lustre metallic. Color silver-white to tin- 

 white. Streak black. Analysis by Petersen (1. c.) : 



S 



As 



Sb 



Pb 



Ag 



Fe 



Ni 



Co, Cu, Zn 



4 43 



3S4G 



13-17 



1-32 



0-12 



3-71 



29-53 



traces =100. 74 



The lead and silver were believed to be due to a small amount of intermingled galena and 

 dyscrasite. The results give the formula Ni S 2 + Ni (As Sb) 2 exactly the same as given for 

 the isometric corynite Cp. 74), showing this compound to be dimorphous. Corynite has a 

 lower density (5 "95 — 6 - 03j and less hardness (4 "5 — 5.). The pyrognostic characters are the 

 same for both minerals and both are soluble in nitric acid. From Wolfach in Baden. 



830 E. WdOongongite. B. SiUiman, Am. J. Sci., II. xlviii. 85. 



This name has been given provisionally to a hydro-carbon from New South Wales. Occurs 

 in cubical blocks, without lamination. Fracture broad conchoidal. Color greenish to brown- 

 ish-black. Lustre resinous. Translucent in thin shavings, showing under the microscope 

 an amber-yellow light. 



Alone in the tube does not melt but decrepitates and gives off oil and gas. Ignites readily 

 and yields, when heated out of access of air, 82 5 volatile matter, coke 6 "5, and when burned 

 11 per cent of ash. Insoluble in ether and benzole, but slightly acted upon by bi-sulphid 

 of carbon. 



550 A. ZephaPvOvtchite. E. Boricky, Sitzb. Ak. Wien, lix. 593, 1869. 

 Crystalline to compact, horn-like in aspect. H=5'5. G-. =2*37. Color greenish, yellow- 

 ish or grayish-white. Translucent. Fracture conchoidal. Composition : 



Fe 

 0-85 



Nob. 1 and 2 contained intermingled wavellite, and No. 3 an earthy gibbsite. Boricky 

 thinks the analyses prove the mineral to be essentially a phosphate having the formula 3cl 

 P -r 6fi, and that in analysis 2 this j>hosphate is mixed with -fa- of wavellite, while in No. 

 3 is associated with -fa t of gibbsite and A of tribasic phosphate of lime. The formula Xl P + 

 6H differs from Callainite Cp. 572; only in containing 1 atom more of water, and analysis 2, 

 after deduction of the 6'04 of quartz, gives P" 40'28, Al 30'57, 0a 0-58, H 28-56, a result' 

 which approaches the figures given by Damour in his analysis of callainite. 



Occurs in sandstone at Trenic in Bohemia. 

 2 





P 



Al 



1. 



35-56 



29-77 



2. 



37-46 



28-44 



3. 



37-80 



29-60 



Ca 



Mg 



H 



Quartz 



1-07 



0-41 



26-70 



546=98-97 



0.54 



tr. 



26-57 



6 05=99-06 



1-38 







28-98 



0-46=99.07 



