No. 31 Horst & Graben with dike

Last known location: Fargo, ND

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This wooden block features a stratified sequence of maple, cherry, beech, mahogany, poplar, purple heart, movingui, and white oak that are cut by two normal faults and a vertical dike of Brazilian cherry. The base of the block measures roughly 4 1/2 by 5 inches and is finished with linseed oil and beeswax.

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