Turritella Agate

Turritella Agate – WyomingFossiliferous Chalcedony

Quick Facts
Origin: Green River Formation, Wyoming, USA
Material: Fossiliferous Chalcedony (SiO₂)
Fossils: Elimia tenera (freshwater snail), often misidentified as “Turritella”
Habit: Agatized sediment packed with spiral snail shells

THE SPECIMENThis Wyoming Turritella Agate specimen is a striking example of fossil‑rich chalcedony, packed with the spiral shells of ancient freshwater snails. The polished surface reveals:
  • tightly packed spiral shells
  • cream, tan, or white fossil outlines
  • deep brown to black chalcedony matrix
  • excellent contrast and patterning
The fossils are preserved in exquisite detail — you can often see the whorls, chambers, and shell walls. When polished, the stone takes on a glassy luster, making the fossils stand out dramatically.
Collectors love this material because it is both a mineral specimen and a fossil, with strong visual appeal and a unique geological story.

ABOUT THIS FIND
The LocalityTurritella Agate comes almost exclusively from the Green River Formation of southwestern Wyoming. This region is famous for:
  • fossil fish
  • freshwater gastropods
  • ancient lake deposits
  • beautifully agatized sediments
The material is mined from ancient lakebed layers where snail shells accumulated in huge numbers.
The FormationDespite the name, the fossils are not true Turritella (a marine snail). They are Elimia, a freshwater gastropod that lived in Eocene lakes ~50 million years ago.
The formation process:
  1. Snail shells accumulated in lake sediments.
  2. Silica‑rich groundwater permeated the layers.
  3. Silica replaced the shells and surrounding sediment.
  4. Chalcedony filled voids, preserving the fossils in 3‑D detail.
The result is a dense, fossil‑packed agate with exceptional durability and polishability.

MINERALOGY
Composition: Chalcedony (microcrystalline quartz) – SiO₂ with fossilized Elimia snail shells.
Crystal Habit: Massive chalcedony with embedded fossils.
Coloration: Dark brown, black, or deep amber matrix with cream or tan fossil outlines.
Luster: Vitreous when polished; matte when raw.
Stability: Very durable (Mohs 6.5–7); excellent for cabbing, carving, and display.

METAPHYSICAL PROPERTIES
​The Stone of “Ancient Memory & Earth Connection”Turritella Agate is associated with ancestral grounding, protection, and deep Earth wisdom.
Root Chakra Support: Its fossil content connects strongly to the Root Chakra, promoting stability and a sense of belonging.
Ancient Energy: Believed to carry the memory of ancient life, supporting:
  • personal growth
  • emotional resilience
  • connection to the past
Protection & Strength: Often used as a talisman for grounding, travel protection, and endurance.
Collectors appreciate Turritella Agate for its powerful grounding energy and its unique blend of fossil and mineral beauty.