New explorations at the Stoneham, Colorado, barite locality

Rocks & Minerals
By: , and 



Stoneham in northeastern Colorado is known throughout the world for its occurrence of stunning blue barite crystals. The barite at Stoneham occurs in a bed rich in montmorillonite clay, derived from alteration of volcanic ash, in the Chadron Formation of the White River Group of Oligocene sedimentary rocks. The barite crystals, as much as 4-6 inches long, crystallized from ground water within open pockets that formed by movement along a northeast-dipping reverse fault that cuts the clay bed. -from Authors

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Publication type Article
Publication Subtype Journal Article
Title New explorations at the Stoneham, Colorado, barite locality
Series title Rocks & Minerals
DOI 10.1080/00357529.1990.11761675
Volume 65
Issue 3
Year Published 1990
Language English
Publisher Taylor & Francis
Description 20 p.
First page 203
Last page 222
Country United States
State Colorado
City Stoneham
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