Raw Gowganda Tillite Specimen Michigan Conglomerate Rock 5 lb 14 oz

Raw Gowganda Tillite specimen with a greenish gray matrix and visible dark, red, pink, cream, and gray stone inclusions.

This heavy rough conglomerate rock fits Michigan rockhound collecting, Great Lakes geology display, classroom shelves, or natural history decor.

Details

• Item: Raw Gowganda Tillite Rock Specimen
• Era: Natural geological specimen, exact age not independently confirmed from photos
• Materials: Conglomerate / tillite rock with mixed mineral and stone inclusions
• Color: Greenish gray matrix with dark gray, black, pinkish red, tan, cream, white, and rusty mineral tones
• Maker/Mark: No visible maker's mark
• Style: Great Lakes geology, Michigan rockhound specimen, rough natural stone display
• Special Features: Heavy raw specimen, rough natural texture, mixed clasts, greenish matrix, strong display presence
• Size: 7 inches long, 3 inches wide at the widest point, and about 5 inches tall at the tallest point
• Weight: 5 lb 14 oz

Condition Grade: Good

Positives

• Large, heavy specimen with strong display presence.
• Multiple inclusions are visible across the surface.
• Greenish gray matrix gives it a different look than lighter puddingstone specimens.
• Raw rough surface shows natural texture and color variation clearly.

Issues / Wear

• Natural rough edges, pits, cracks, crevices, embedded grit, and uneven surfaces are present throughout.
• Mineral identification is based on visual appearance and Pam's notes, not lab testing.
• Exact origin location is not confirmed from photos.
• No display stand is included unless Pam adds one separately.

See all photos for detail. Sold as pictured.

Condition Grade Key

• Near Fine: Almost perfect. Very minor signs of age only.
• Very Good: Shows light use. Sound and attractive with minor flaws.
• Good: Complete and intact. Noticeable wear consistent with age and use.
• Fair: Shows significant wear. Readable or usable but clearly used.

Collector's Notes

Gowganda Tillite is a glacial conglomerate often collected around Michigan and the Great Lakes for its mixed stone inclusions and dark greenish gray matrix.

This piece suits a rockhound, geology collector, classroom shelf, nature table, or Michigan-themed display.

The larger size and 5 lb 14 oz weight give this specimen more presence than a small pocket stone.

A serious shelf rock, with a lot more personality than a paperweight has any right to have.

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