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Obsidian image.
Obsidian
 Sample #: V5661
Variety:
Obsidian image.
Obsidian
 Sample #: V5662
Variety:
Obsidian image.
Obsidian
 Sample #: V5663
Variety:
Obsidian image.
Obsidian
 Sample #: V5664
Variety:
Obsidian image.
Obsidian
 Sample #: V5665
Variety:
Obsidian image.
Obsidian
 Sample #: V5666
Variety:
Obsidian image.
Obsidian
 Sample #: V5667
Variety:
Okenite image.
Okenite
 Sample #: V3410
Variety:
Oligoclase image.
Oligoclase
 Sample #: V1840
Variety:
Oligoclase image.
Oligoclase
 Sample #: V1841
Variety:
Oligoclase image.
Oligoclase
 Sample #: V1842
Variety:
Oligoclase image.
Oligoclase
 Sample #: V1843
Variety:
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