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Notes specific to this specimen: We cut and polish these particular Kona Dolomite pieces to showcase the uniqueness of this material. Here the front is cut and polished. It sits upright on a flat base with a slight angle for optimal viewing. The back is left rough. This piece shows nice stromatolitic banding. There is some slight marring in the finish at the top. Great conversation piece of one of the world’s oldest fossils.
SIZE: 2″ High
NAME: Collenia kona
AGE: Paleoproterozoic Era 2.3 billion years
UNIT: Kona Formation
SITE: Kona Hills, Michigan
DATE: 2025
BY: Jon Kramer & Julie Martinez
Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
Notes specific to this specimen: We cut and polish these particular Kona Dolomite pieces to showcase the uniqueness of this material. Here the front is cut and polished. It sits upright on a flat base with a slight angle for optimal viewing. The back is left rough. This piece shows nice stromatolitic banding. There is some slight marring in the finish at the top. Great conversation piece of one of the world’s oldest fossils.
SIZE: 2″ High
NAME: Collenia kona
AGE: Paleoproterozoic Era 2.3 billion years
UNIT: Kona Formation
SITE: Kona Hills, Michigan
DATE: 2025
BY: Jon Kramer & Julie Martinez
Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
Additional information
| Weight | 3 lbs |
|---|---|
| Dimensions | 6 × 3 × 1 in |
| Name / Species | Collenia Kona |
| Age | Paleoproterozoic Era 2.3 billion years |
| Unit | Kona Formation |
| Site | Kona Hills, Michigan |
| Date | 2025 |








