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Index to Quartz
Digging
Cleaning
Worth
Fee Pay Mines
Types
Forms
Inclusions
Geology
Mineralogy
Synthetic
Gemstones
Handedness
Experiments

Rockhounding Arkansas

crystal forms
Cactus Quartz

Multiple terminated growth on a growth form called "cactus quartz" by local collectors, Big Cedar Bluff, Saline County, AR. The growth in the C axis direction is so rapid that the trigonal termination faces are not filled in on the crystal aggregates to form a "single" crystal. Tiny trigonal faces terminate each termination, all in the same orientation.

 

 

 

 



Contact the authors of Rockhounding Arkansas Revised July 1998
©Rockhounding Arkansas 1998 http://rockhoundingAR.com