American stone for architects and designers.

Granite · Minnesota

Agate

Coldspring

Agate: Polished finish.
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Colors
Multicolor · Red

Origin evidence

Extraction country
USA — verified[1][2]
Extraction state
Minnesota — verified[1][2]
Quarry / operator
quarry location: Ortonville, Minnesota — Coldspring[1][2]
Sources (2)
  1. Source 1 · extraction country, extraction state, quarry / operator
  2. Source 2 · extraction country, extraction state, quarry / operator
MSHA associations under review (1)

Possible mine-record matches are research leads. They do not establish a supplying quarry or change the verified origin shown above.

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