1. 4:55 AM October 24, 2011Sanders Unit 2: Rocks and Minerals 2-5 Igneous Rock Identification

2. Rocks and Minerals December 17, 2015 Vocabulary 1.Felsic 2.Mafic 3.Vesicular 1.Felsic 2.Mafic 3.Vesicular

3. Rocks and Minerals December 17, 2015 Felsic Rocks

4. Rocks and Minerals December 17, 2015 Felsic Rocks  Light in color.

5. Rocks and Minerals December 17, 2015 Felsic Rocks  Light in color.  Low in density.

6. Rocks and Minerals December 17, 2015 Felsic Rocks  Light in color.  Low in density.  Forms at a lower temperature.

7. Rocks and Minerals December 17, 2015 Felsic Rocks  Light in color.  Low in density.  Forms at a lower temperature.  Potassium Feldspar

8. Rocks and Minerals December 17, 2015 Felsic Rocks  Light in color.  Low in density.  Forms at a lower temperature.  Potassium Feldspar  Quartz

9. Rocks and Minerals December 17, 2015 Felsic Rocks  Light in color.  Low in density.  Forms at a lower temperature.  Potassium Feldspar  Quartz  Plagioclase Feldspar

10. Rocks and Minerals December 17, 2015 Felsic Rocks  Light in color.  Low in density.  Forms at a lower temperature.  Potassium Feldspar  Quartz  Plagioclase Feldspar  Biotite Mica

11. Rocks and Minerals December 17, 2015 Felsic Rocks  Light in color.  Low in density.  Forms at a lower temperature.  Potassium Feldspar  Quartz  Plagioclase Feldspar  Biotite Mica  Amphibole

12. Rocks and Minerals December 17, 2015 Obsidian

13. Rocks and Minerals December 17, 2015 Obsidian  Texture is crystalline.

14. Rocks and Minerals December 17, 2015 Obsidian  Texture is crystalline.  Despite being felsic, it is dark in appearance, the exception to the felsic rule.  Texture is crystalline.  Despite being felsic, it is dark in appearance, the exception to the felsic rule.

15. Rocks and Minerals December 17, 2015 Obsidian  Texture is crystalline.  Despite being felsic, it is dark in appearance, the exception to the felsic rule.  Extrusive  Texture is crystalline.  Despite being felsic, it is dark in appearance, the exception to the felsic rule.  Extrusive

16. Rocks and Minerals December 17, 2015 Pumice

17. Rocks and Minerals December 17, 2015 Pumice  Texture is glassy but has vesicles, holes.

18. Rocks and Minerals December 17, 2015 Pumice  Texture is glassy but has vesicles, holes.  It cooled so quickly that minerals didn’t have time to form.

19. Rocks and Minerals December 17, 2015 Pumice  Texture is glassy but has vesicles, holes.  It cooled so quickly that minerals didn’t have time to form.  Extrusive

20. Rocks and Minerals December 17, 2015 Vesicular Rhyolite

21. Rocks and Minerals December 17, 2015 Vesicular Rhyolite  It is an extrusive rock; formed form lava.

22. Rocks and Minerals December 17, 2015 Vesicular Rhyolite  It is an extrusive rock; formed form lava.  Minerals are less than 1mm.  It is an extrusive rock; formed form lava.  Minerals are less than 1mm.

23. Rocks and Minerals December 17, 2015 Vesicular Rhyolite  It is an extrusive rock; formed form lava.  Minerals are less than 1mm.  Extrusive  It is an extrusive rock; formed form lava.  Minerals are less than 1mm.  Extrusive

24. Rocks and Minerals December 17, 2015 Rhyolite

25. Rocks and Minerals December 17, 2015 Rhyolite  It is an extrusive rock; formed form lava.

26. Rocks and Minerals December 17, 2015 Rhyolite  It is an extrusive rock; formed form lava.  The crystals are less than 1 mm.

27. Rocks and Minerals December 17, 2015 Rhyolite  It is an extrusive rock; formed form lava.  The crystals are less than 1 mm.  Extrusive

28. Rocks and Minerals December 17, 2015 Granite

29. Rocks and Minerals December 17, 2015 Granite  Intrusive rock formed from magma.

30. Rocks and Minerals December 17, 2015 Granite  Intrusive rock formed from magma.  It has course texture.  Intrusive rock formed from magma.  It has course texture.

31. Rocks and Minerals December 17, 2015 Granite  Intrusive rock formed from magma.  It has course texture.  Crystal size is between 1 - 10 mm.  Intrusive rock formed from magma.  It has course texture.  Crystal size is between 1 - 10 mm.

32. Rocks and Minerals December 17, 2015 Granite  Intrusive rock formed from magma.  It has course texture.  Crystal size is between 1 - 10 mm.  Intrusive  Intrusive rock formed from magma.  It has course texture.  Crystal size is between 1 - 10 mm.  Intrusive

33. Rocks and Minerals December 17, 2015 Pegmatite

34. Rocks and Minerals December 17, 2015 Pegmatite  Formed from magma.

35. Rocks and Minerals December 17, 2015 Pegmatite  Formed from magma.  Texture is very course.

36. Rocks and Minerals December 17, 2015 Pegmatite  Formed from magma.  Texture is very course.  The crystal size is 10 mm.

37. Rocks and Minerals December 17, 2015 Pegmatite  Formed from magma.  Texture is very course.  The crystal size is 10 mm.  Intrusive

38. Rocks and Minerals December 17, 2015 Mafic Rocks

39. Rocks and Minerals December 17, 2015 Mafic Rocks  Dark in color.

40. Rocks and Minerals December 17, 2015 Mafic Rocks  Dark in color.  High in density.  Dark in color.  High in density.

41. Rocks and Minerals December 17, 2015 Mafic Rocks  Dark in color.  High in density.  Forms at a higher temperature.  Dark in color.  High in density.  Forms at a higher temperature.

42. Rocks and Minerals December 17, 2015 Mafic Rocks  Dark in color.  High in density.  Forms at a higher temperature.  Plagioclase Feldspar  Dark in color.  High in density.  Forms at a higher temperature.  Plagioclase Feldspar

43. Rocks and Minerals December 17, 2015 Mafic Rocks  Dark in color.  High in density.  Forms at a higher temperature.  Plagioclase Feldspar  Biotite Mica  Dark in color.  High in density.  Forms at a higher temperature.  Plagioclase Feldspar  Biotite Mica

44. Rocks and Minerals December 17, 2015 Mafic Rocks  Dark in color.  High in density.  Forms at a higher temperature.  Plagioclase Feldspar  Biotite Mica  Pyroxyene  Dark in color.  High in density.  Forms at a higher temperature.  Plagioclase Feldspar  Biotite Mica  Pyroxyene

45. Rocks and Minerals December 17, 2015 Mafic Rocks  Dark in color.  High in density.  Forms at a higher temperature.  Plagioclase Feldspar  Biotite Mica  Pyroxyene  Amphibole  Dark in color.  High in density.  Forms at a higher temperature.  Plagioclase Feldspar  Biotite Mica  Pyroxyene  Amphibole

46. Rocks and Minerals December 17, 2015 Mafic Rocks  Dark in color.  High in density.  Forms at a higher temperature.  Plagioclase Feldspar  Biotite Mica  Pyroxyene  Amphibole  Olivine  Dark in color.  High in density.  Forms at a higher temperature.  Plagioclase Feldspar  Biotite Mica  Pyroxyene  Amphibole  Olivine

47. Rocks and Minerals December 17, 2015 Basaltic Glass

48. Rocks and Minerals December 17, 2015 Basaltic Glass  Glassy in texture.

49. Rocks and Minerals December 17, 2015 Basaltic Glass  Glassy in texture.  Non-crystalline.

50. Rocks and Minerals December 17, 2015 Basaltic Glass  Glassy in texture.  Non-crystalline.  Can be light in color.

51. Rocks and Minerals December 17, 2015 Basaltic Glass  Glassy in texture.  Non-crystalline.  Can be light in color.  Also know as Pele hair

52. Rocks and Minerals December 17, 2015 Basaltic Glass  Glassy in texture.  Non-crystalline.  Can be light in color.  Also know as Pele hair

53. Rocks and Minerals December 17, 2015 Basaltic Glass  Glassy in texture.  Non-crystalline.  Can be light in color.  Also know as Pele hair  Extrusive

54. Rocks and Minerals December 17, 2015 Scoria

55. Rocks and Minerals December 17, 2015 Scoria  Glassy in Texture.

56. Rocks and Minerals December 17, 2015 Scoria  Glassy in Texture.  Non-crystalline.  Glassy in Texture.  Non-crystalline.

57. Rocks and Minerals December 17, 2015 Scoria  Glassy in Texture.  Non-crystalline.  Vesicles indicate rapid cooling.  Glassy in Texture.  Non-crystalline.  Vesicles indicate rapid cooling.

58. Rocks and Minerals December 17, 2015 Scoria  Glassy in Texture.  Non-crystalline.  Vesicles indicate rapid cooling.  Extrusive  Glassy in Texture.  Non-crystalline.  Vesicles indicate rapid cooling.  Extrusive

59. Rocks and Minerals December 17, 2015 Vesicular Basalt

60. Rocks and Minerals December 17, 2015 Vesicular Basalt  Fine texture.

61. Rocks and Minerals December 17, 2015 Vesicular Basalt  Fine texture.  Crystal size less than 1 mm.

62. Rocks and Minerals December 17, 2015 Vesicular Basalt  Fine texture.  Crystal size less than 1 mm.  Vesicular.

63. Rocks and Minerals December 17, 2015 Vesicular Basalt  Fine texture.  Crystal size less than 1 mm.  Vesicular.  Extrusive

64. Rocks and Minerals December 17, 2015 Basalt

65. Rocks and Minerals December 17, 2015 Basalt  Fine texture.

66. Rocks and Minerals December 17, 2015 Basalt  Fine texture.  Crystals lass than 1 mm.  Fine texture.  Crystals lass than 1 mm.

67. Rocks and Minerals December 17, 2015 Basalt  Fine texture.  Crystals lass than 1 mm.  Extrusive  Fine texture.  Crystals lass than 1 mm.  Extrusive

68. Rocks and Minerals December 17, 2015 Diabase

69. Rocks and Minerals December 17, 2015 Diabase  Texture runs from fine to coarse.

70. Rocks and Minerals December 17, 2015 Diabase  Texture runs from fine to coarse.  Palisades are formed from diabase.

71. Rocks and Minerals December 17, 2015 Diabase  Texture runs from fine to coarse.  Palisades are formed from diabase.

72. Rocks and Minerals December 17, 2015 Diabase  Texture runs from fine to coarse.  Palisades are formed from diabase.  Can be either extrusive or intrusive.

73. Rocks and Minerals December 17, 2015 Gabbro

74. Rocks and Minerals December 17, 2015 Gabbro  Texture is course.

75. Rocks and Minerals December 17, 2015 Gabbro  Texture is course.  Grain size from 1 - 10 mm.  Texture is course.  Grain size from 1 - 10 mm.

76. Rocks and Minerals December 17, 2015 Gabbro  Texture is course.  Grain size from 1 - 10 mm.  Intrusive  Texture is course.  Grain size from 1 - 10 mm.  Intrusive

77. Rocks and Minerals December 17, 2015 Peridotite

78. Rocks and Minerals December 17, 2015 Peridotite  Course texture.

79. Rocks and Minerals December 17, 2015 Peridotite  Course texture.  Crystal size 1 - 10 mm.

80. Rocks and Minerals December 17, 2015 Peridotite  Course texture.  Crystal size 1 - 10 mm.  Mineral Identification

81. Rocks and Minerals December 17, 2015 Peridotite  Course texture.  Crystal size 1 - 10 mm.  Mineral Identification  Pyroxene

82. Rocks and Minerals December 17, 2015 Peridotite  Course texture.  Crystal size 1 - 10 mm.  Mineral Identification  Pyroxene  Olivine

83. Rocks and Minerals December 17, 2015 Peridotite  Course texture.  Crystal size 1 - 10 mm.  Mineral Identification  Pyroxene  Olivine  Intrusive

84. Rocks and Minerals December 17, 2015 Dunite  Texture is course.

85. Rocks and Minerals December 17, 2015 Dunite  Texture is course.

86. Rocks and Minerals December 17, 2015 Dunite  Texture is course.  Crystal size is 1 - 10 mm.  Texture is course.  Crystal size is 1 - 10 mm.

87. Rocks and Minerals December 17, 2015 Dunite  Texture is course.  Crystal size is 1 - 10 mm.  It is unique that it only contains the mineral olivine.  Texture is course.  Crystal size is 1 - 10 mm.  It is unique that it only contains the mineral olivine.

88. Rocks and Minerals December 17, 2015 Dunite  Texture is course.  Crystal size is 1 - 10 mm.  It is unique that it only contains the mineral olivine.  It is monomineralic.  Texture is course.  Crystal size is 1 - 10 mm.  It is unique that it only contains the mineral olivine.  It is monomineralic.

89. Rocks and Minerals December 17, 2015 Dunite  Texture is course.  Crystal size is 1 - 10 mm.  It is unique that it only contains the mineral olivine.  It is monomineralic.  Intrusive  Texture is course.  Crystal size is 1 - 10 mm.  It is unique that it only contains the mineral olivine.  It is monomineralic.  Intrusive