CALCITE and QUARTZ pseudomorph after ARAGONITE
Cadman Quarry, near Monroe, Snohomish County, Washington, USA
Specimen is ~2 inches longest dimension. This is a cut section perpindicular to the c-axis of three intergrown pseudomorphed crystals.
The cut face exhibits the hexagonal cross-section of the crystals. The pseudomorph is polymineralic

(the darker translucent rim is likely calcite and the core is likely quartz and calcite, but this has not been confirmed).

Brittney Muzzy Lynn Collection

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