GALLERY.] 
Tincal, 41. 
Tin-pyrites, 9. 
Tinder-ore, 38. 
Titan-shorl, 37- 
Titanite, 37* 
Titanium, 1. 
Topaz, 58. 
Tourmaline, 40. 
Trauben-ertz, 53. 
Tremolite, 33. 
Triphane, 30. 
Triphyline, 54. 
Triplite, 54. 
Trona, 41. 
Tshefkinite, 38. 
Tufa, calcareous, 48. 
Tungsten, 38. 
Turquois, 54. 
NATURAL 
Uranite, 54. 
Uran-mica, 54. 
Uran-vitriol, 58. 
Uranium, oxide, 17* 
-phosphate, 54. 
-sulphate, 57. 
Yanadiates, 38. 
Vauquelinite, 39. 
Vesuvian, 35. 
Velvet-ore, 58. 
Vermilion,native, 
Vivianite, 54. 
Vitriol, blue, 58. 
-green, 57. 
-white, 57- 
Vitriol-roth, 57. 
Volborthite, 38. 
Wad, 13. 
HISTORY. 
Wavellite, 54. 
Websterite, 57. 
Weiss-ertz, 12. 
Wernerite, 31. 
Willemite, 26. 
Withamite, 35. 
Witherite, 41. 
Wolfram, 38. 
Wollastonite, 25. 
Wolnyne, 55. 
Wood-opal, 24. 
Wood-stone, 22. 
Wood-tin, 18. 
Wootz-ore, 15. 
Yenite, 34. 
You-stone, 28. 
Yttria, phosphate 
53. 
75 
Y ttrium fluoride,59. 
Yttrocerite, 58. 
Yttrotantalite, 38. 
Zeagonite, 29. 
Zeolites, 27, 28. 
Zinc, blende, 5. 
•-carbonate, 49. 
-ore, red, 17 . 
-silicate, 26. 
-sulphate, 57 . 
-sulphuret, 5. 
Zinc spar, 49. 
Zinc vitriol, 58. 
Zinkenite, 11. 
Zircon, 26. 
Zoisite, 35. 
Zunder-ertz, 40. 
