Opaque
euhedral
euhedral
Description
Opaque (black). Yellow in reflected light. Pleochroism and birefringence not applicable. Euhedral, framboidal, space-filling shapes. May coat or replace organic matter. Occurs in organic-rich or reduced sediments. Common in lacustrine, wetland, estuarine, and marine environments.
Opaque (black). Yellow in reflected light. Pleochroism and birefringence not applicable. Euhedral, framboidal, space-filling shapes. May coat or replace organic matter. Occurs in organic-rich or reduced sediments. Common in lacustrine, wetland, estuarine, and marine environments.
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