Strontianite

specimen number:
2062896

location:
Faylor-Middle Creek Quarry, Winfield, Union Co., Pennsylvania, USA

description:
Sprays of white crystallized strontianite measuring to 1.1 cm in diameter on matrix. In good condition. Classic locality for the species. The specimen comes with a previous label from the collection of Ray DeMark.

Located near Winfield in Union County, Pennsylvania, the Faylor-Middle Creek Quarry operates primarily as an industrial limestone and dolomite mine within Paleozoic sedimentary rock formations. Over decades of commercial quarrying, mineral collectors have prized the site for its rich cavities containing diverse crystal specimens. Among these, strontianite is especially notable, typically appearing as delicate spherical sprays or white tufts of crystals embedded in limestone matrices that can display distinct fluorescence under ultraviolet light. Access to the active commercial site has historically been tightly controlled, making its mineral specimens treasured finds among regional rockhounds.

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