NEW YORK STATE MUSEUM 



Labradorite, 89, 90. 

 Lapis lazuli, 98. 

 Lazulite, 120. 

 Lazurite, 98. 

 Lead glance, 52. 

 Lepidolite, 111. 

 Leucite, 91. 

 Libethenite, 120. 

 Light ruby silver, 62. 

 Lignite, 131. 

 Lime feldspar, 90. 



soda feldspar, 90. 

 Limestone, 79. 

 Limonite, 77, pi. 23. 

 Litbia mica, 111. 

 Lodestone, 73, pi. 21. 



Magnesium limestone, 81. 

 Magnesite, 82. 



Magnetic iron ore, 73, pi. 4, 21. 



pyrites, 56-57. 

 Magnetite, 73, pi. 4, 21. 

 Malachite, 86, pi. 6. 

 Malacolite, 92. 

 Manganite. 77, pi. 23. 

 Marble, 81. 

 Marcasite, 60, pi. 16. 

 Meerschaum, 114. 

 Menaccanite, 72. 

 Mercury, 51. 

 Mica, 110. 

 Microcline, 89. 

 Milky quartz, 67. 

 Millerire. 56, pi. 10, 15. 

 Mimetite, 119, pi. 37. 

 Mineral coal, 130. 

 Mispickel, 60. 

 Monazite, 117. 

 Muscovite, 110-11, pi. 4, 35. 



Native antimony, 49. 

 arsenic, 49. 

 bismuth. 49. 

 copper, 50. 

 gold. 49. 

 iron, 51, 131. 

 mercury, 51. 

 platinum. 51. 

 silver. 50. 

 sulfur. 48. 



Native ultramarine, 98. 



vermilion, 55. 

 Natrolite, 110, pi. 34. 

 Xephelite, 97. 

 Nephrite, 95. 

 Niccolite, 56. 

 Nigrin, 75, pi. 22. 



Ochre, 78. 



Octahedrite, 76. 

 Oligoclase, 89, 90. 

 Olivenite, 120. 

 Olivin, 99. 

 Onyx, 68. 

 Opal, 68. 

 Orpiment, 51. 

 Orthoclase, 88. 

 Osteolite, 118. 



Pandermite, 122. 

 Pearl spar, 81. 

 Pectolite, 94, pi. 7. 

 Pencil stone, 115. 

 Peridot, 99. 

 Petroleum, 129. 

 Phenacite, 100. 

 Phlogopite, 112. 

 Phosphate rock, 117, 118. 

 Phosphorite, 118. 

 Pitch blende, 123. 

 Platinum, 51. 

 Potash feldspar, 88. 

 Prase, 68. 

 Precious opal, 68. 



garnet, 99. > 

 Prehnite, 105, pi. 31. 

 Priceite, 122. 

 Prochlorite. 112. 

 Proustite, 62. 

 Psilomelane, 79. 

 Purple copper ore, 57. 

 Pyrargyrite, 61. 

 Pynte. 58-59, pi. 16. 

 Pyrolusite, 76, pi. 8. 

 Pyromorphite, 118-19, pi. 36. 

 Pyrope. 99. 



Pyrophyllite, 115, pi. 36. 

 Pyroxene, 92, pi. 29. 

 Pyrrhotite, 56-57. 



