Well formed Calcite crystals with a bubbly coating or red/brown colored Hematite. This is classic material from Pea Ridge which has been closed for some time now.
Flaws: There termination of the main crystal is incomplete. There is a small bruised area at the termination of a small, thin, elongated Calcite crystal (see the third picture). Otherwise, the specimen is in very good to excellent condition.
This mineral is also found in the following galleries: Minerals From the United States | Oxides and Hydroxides | Calcite | Minerals Priced Between 50 and 99 Dollars