Calcite with Marcasite
specimen number:
2063250
location:
Linwood Mine, Scott Co., Iowa, USA
description: The Linwood Mine, located near Buffalo in Scott County, Iowa, originated as an open-pit limestone quarry around 1897 before transitioning into a massive underground room-and-pillar operation. Geologically, the site sits within Middle Devonian sedimentary strata rich in high-purity calcium carbonate, which Linwood Mining and Minerals Corporation extracts to produce commercial lime, chemical-grade stone, and aggregate. Beyond its industrial importance, the mine is renowned among mineral collectors for producing world-class specimens of golden scalenohedral calcite, tabular barite, and metallic marcasite crystals, which are prized for their exceptional luster and aesthetic formations.
A superb grouping of glassy gem quality colorless scalenohedral calcite crystals without matrix. The crystals exhibit marcasite crystal lined phantom crystals within. This is in great condition. The specimen comes with a previous label from the collection of Ray DeMark.
Questions about this specimen?
Send an email
or call us: 314-341-1811.
See More
Related by Mineral (Calcite):
Calcite — China
Origin: Qinglong Mine, Dachang, Qinglong Co., Qianxinan, Guizhou, China
Number: (9507100)
Size: 13.0 x 4.5 x 4.5 cm (cabinet)
Calcite — DR Congo
Origin: Mashamba West Mine, Kolwezi, Lualaba, DR Congo
Number: (9506612)
Size: 9.5 x 9.5 x 3.0 cm (cabinet)
Calcite — Indiana
Origin: Corydon Crushed Stone Co. Quarry, Harrison Co., Indiana, USA
Number: (2063247)
Size: 6.5 x 4.5 x 1.0 cm (small-cabinet)
Related by Location (Linwood Mine):
Calcite — Iowa
Origin: Linwood Mine, Buffalo, Scott Co., Iowa, USA
Number: (2013464)
Size: 5.3 x 4.0 x 2.0 cm (miniature)
Marcasite — Iowa
Origin: Linwood Mine, Buffalo, Scott Co., Iowa, USA
Number: (2013465)
Size: 4.0 x 4.0 x 3.5 cm (miniature)