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Interactive Key

Don't know what you're looking at? Use the interactive key to get your identification started! (Minerals and mineraloids only.)

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ImageSieve

Filter by multiple tags! Sort, zoom, slice and dice the database.

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Gallery - images of inorganic components
Gallery - images of organic components
Gallery - images of contaminants

Tags

Can you describe it? Select a tag and dive in!

1. acicular
2. amber
3. amorphous
4. anhedral
5. anisotropic
6. ash
7. authigenic
8. banded
9. biogenic
10. bird's-eye-extinction
11. black
12. blue
13. blue-green
14. bouma-sequence
15. brown
16. brown-green
17. bryophyte
18. bubbles
19. bumpy
20. calcareous
21. carapace
22. carbonate
23. cascades
24. cellular-structure
25. circular
26. cleavage
27. clotted
28. colorless
29. conchoidal
30. conchoidal-fracture
31. contact-twinning
32. contaminant
33. cross-hatch
34. cubic
35. curved
36. dark
37. dendritic
38. density
39. diagenetic
40. diatomaceous
41. elongate
42. elongated
43. equant
44. euhedral
45. evaporite
46. feldspar
47. ferromagnesian
48. ferrous
49. fibrous
50. filamentous
51. fine-grained
52. fine-scale-bedding
53. flaky
54. fragmentary
55. framboidal
56. glacial
57. good-cleavage
58. graded
59. grain-boundaries
60. granular
61. gravity-deposit
62. gray
63. green
64. groove
65. heavy-mineral
66. high-birefringence
67. high-relief
68. holocene
69. inclusions
70. insect
71. isotropic
72. isotropic conchoidal-fracture
73. lamellar-twinning
74. laminated
75. large
76. layers
77. lobed
78. lorica
79. low-birefringence
80. low-relief
81. low-to-moderate relief
82. mica
83. moderate-birefringence
84. moderate-relief
85. moderately-high-relief
86. monoclinic-habit
87. near-90-degree-perfect-cleavage
88. needle-like
89. no-lamellar-twinning
90. nonpleochroic
91. octahedral
92. opaque
93. organic-matter
94. patterned
95. phosphate
96. pink
97. pinwheel-extinction
98. plagioclase
99. plaid
100. pleochroic
101. polysynthetic-twinning
102. prismatic
103. pseudo-isotropic
104. pungent
105. purplish
106. radial
107. ragged
108. reactive
109. red
110. rhombic
111. rice-shape
112. rythmite
113. salt
114. shards
115. sharp
116. shell
117. shredded
118. silicate
119. silty
120. sorted
121. spherical
122. spicule
123. stinky
124. striated
125. stringy
126. subhedral
127. sulfide
128. tabular
129. tartan
130. tartan-twinned
131. translucent
132. transparent
133. triangular
134. twinned
135. vesicular
136. volcanic-glass
137. water-soluble
138. woody
139. yellow
140. zeolite