Mineralpedia Details for Gillespite
Named after Frank Gillespie of Alaska, USA who discovered the first specimen. Gillespite is a rare mineral that occues in glacial moraines and from contact metamorphic zones in localities in Alaska and California in the USA, in Yukon Territory, Canada, and in Baja California, Mexico. Associated minerals include celsian, hedenbergite, quartz, sanbornite, diopside, tourmaline, pyrrhotite, pellyite, taramellite, fresnoite, muirite, and baryte.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/gillespite.pdf
Gillespite from Gun Claims, MacMillian Pass, Itsy Mountains, Yukon Territory, Canada
Deep red, large cleavages of crystals to over 3cm embedded in matrix.
Gillespite from Big Creek, Fresno Co., California, United States
- Special Info
- Phillips Collection
Deep red, platy cleavages to 3cm in Quartz matrix.