Pink topaz from the Thomas Range, Juab County, Utah

Mineralogical Record
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The Thomas Range is world-famous for its production of topaz Al2SiO4(F,OH)2, occurring in lithophysal cavities in rhyolite. Topaz Valley, at the southern end of the range, is perhaps the single most famous locality. While fine-quality, sherry-orange crystals to 5 cm or more in length occur at various localities, pale to medium pink crystals were first reported from the Thomas Range in 1934. The cause of the unusual coloration, unknown for 60 years, is now believed to be substitution of Mn3+ ?? Fe3+ for Al3+. -Authors

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Pink topaz from the Thomas Range, Juab County, Utah
Series title Mineralogical Record
Volume 26
Issue 1
Year Published 1995
Language English
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Mineralogical Record
First page 57
Last page 60
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