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"Ruby Jack" Sphalerite with Marcasite and Pyrite
Picher Field, Tri-State District, Ottawa County, Oklahoma USA
Mined about 1959
Former Folch duplicates collection
Specimen size: 10.8 × 8.3 × 2.9 cm.
Main crystal size: 3.6 × 2.9 cm.
Photo: Reference Specimens (Author: Jordi Fabre)
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