Calcite

specimen number:
2063635

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

description:
Colorless glassy gemmy scalenohedral crystals of calcite to 2.0 cm in height on matrix. Some cleaving present, the prominent crystal is in good condition. The specimen comes with a previous label from the collection of Ray DeMark.

The Faylor-Middle Creek Quarry, situated near Winfield in Union County, Pennsylvania, is a prominent limestone quarry excavated primarily into the Silurian-aged Keyser and Tonoloway sedimentary formations. Formed millions of years ago in shallow marine environments, these thick limestone and dolomite beds developed extensive vugs and fractures where mineral-rich groundwater later deposited stunning secondary mineralizations. Historically operated for crushed stone and industrial aggregate, the locality gained renowned status among mineral collectors and researchers for yielding exceptional mineral specimens. It is particularly famous in regional mineralogy for producing lustrous scalenohedral calcite crystals, exquisite bundles of white strontianite, and delicate pale blue celestine crystals, making it a classic Pennsylvania collecting site documented in numerous geological survey bulletins.

Questions about this specimen?
Send an email or call us: 314-341-1811.