| 00648: Calcite and Gypsum - $34 Elk Creek, Meade County, South Dakota Cabinet - 13.1 x 8.9 x 8.8 cm 722 grams Fluorescent (LW/SW) Specimen status: Available Send an email with specimen number to order Light yellow brown calcite crystals
carpet the floor of a matrix cavity. A few gypsum crystals
are also present; the best of these is transparent, doubly
terminated and measures 1.4 cm. Displays white
fluorescence under both longwave (blacklight) and
shortwave ultraviolet light. Very nice condition. Sits
perfectly for display on its sawn base (the tough matrix
necessitates sawing for collecting or trimming without
disturbing attached crystals). Carries an old (La Jolla
address) The Arkenstone label. I purchased
this specimen in November, 1999.
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