n tabular views of mineral systems. 477 48. Flint. 49. Chalcedony. a. Common. b. Carnelian. Common. /3. Fibrous. 50. Hyalite. 51. Opal. a. Precious. b. Common opal. c. Semi-opal. d. Wood-opal. 52. Menilitc. a. Brovi n menilitc. b. Grey menilitc. 53. Jasper. a. Egyptian jasper. a. Red. /3. Brown. b. Striped jasper. c. Porcelain jasper. d. Common jasper. a. Conchoidal. /3. Earthy. e. Opal jasper. ' f. Agate jasper. 54. Heliotrope. 55. Chrysoprase. 56. Plasma. 57. Cat’s-eye. 58. Faser Kiesd. 59. Elaolite. 60. Obsidian. 61. Pitchstone. Fitchsione Family. 62. Pearlstonc. 63. Pumice. Zeolite Family. 64. 65. Prehnitc. a. Fibrous. b. Foliated. Natrolite. 66. Zeolite. a . Mealy Zeolite., b. Fibrous ,do. } . imi'' c. Radiated Zeolite- d. Foliated do. 67. Ichthyophthalm. 1 68. Cubicite. 69. Cross-stone or Crucite. 70. Laumonite. 71. Schmelzstejo, .icmmoO .* x . Azureslone Fam> ^ i,,dT .6, 72. Azure stone, 1 74. Blue-spar. ^ fcoH ,e 73. Azurite. yhuli .7* rr.ii/p XV # v Fclspa*