| | Description | |
| Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Černý, P., Chapman, R., Simmons, W.B., and Chackowsky, L.E. (1999) Niobian rutile from the McGuire granitic pegmatite, Park County, Colorado: solid solution, exsolution, and oxidation. American Mineralogist: 84: 754–763. |
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