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Auction in Preview - Starts June 24, 2026 6PM Active (#29371235)

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Lot # F810

Carved Septarian Bison Figurines, Set of 2 View Watchlist >

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Lot # F810
System ID # 29487517

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Description

Carved Septarian Bison Figurines, Set of 2

Pair of hand-carved bison figurines worked from septarian — the fossil concretion formed in ancient seabed muds, prized for its three-zone mineralogy: dark gray argillaceous matrix, rust-brown aragonite veining tracing the polygonal fracture lines, and pale yellow crystalline calcite filling the inner voids. The cross-sections on the unpolished bases make the septarian architecture unmistakable — a mosaic of angular septae exactly as nature formed them some 50 to 70 million years ago. Each figurine is shaped in profile with the characteristic humped shoulder and a notched suggestion of forelegs; the high polish draws a sharp contrast between the matte gray matrix and the glassy, translucent calcite pockets. The smaller figure carries a natural inclusion in the stone — an inherent feature of the material, not a flaw.

  • Two pieces — large and small bison
  • Material: Septarian (unmarked; no origin label)
  • Polished bodies; unpolished bases
  • Smaller figurine: natural stone inclusion present — inherent to the material

CONDITION

Very Good. Both figurines retain bright, even polish across all carved surfaces. The smaller piece has a natural inclusion consistent with septarian formation — not damage. Unpolished bases are raw as made.

DIMENSIONS / SPECIFICATIONS

  • Large: 2" H × 3" W × 1" D; 144.3 g
  • Small: 1⅝" H × 2¼" W × 1" D; 85.6 g
  • Total pieces: 2
  • U.S. Quarter (24mm) Shown for Scale — Not Included
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