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A Unique Occurrence of Nephrite Jade with Magnetite Inclusions in San Bernardino County, California.
- Source :
- Rocks & Minerals; Sep-Oct2021, Vol. 96 Issue 5, p442-449, 8p
- Publication Year :
- 2021
-
Abstract
- Although the quote is specific to the orebody of the now-abandoned marble quarry, it also suggests the potential for contact metamorphism and metasomatism that impacted and altered the actinolite and the specular hematite into nephrite and magnetite. Mineralogy/Petrology of the Nephrite Nephrite jade is essentially a monomineralic rock composed of amphiboles from the actinolite-tremolite series with occasional other impurities (Ling et al. [8]). B For well over half a century b , Southern California collectors have known about and tried to collect black nephrite jade with sparkling rosettes of magnetite from a unique deposit adjacent to the Verde Antique Marble quarry (Sec. 28, T. 7 N., R. 2 W., San Bernardino base and meridian). Magnetite in nephrite has been identified in many other nephrite jade deposits worldwide. [Extracted from the article]
Details
- Language :
- English
- ISSN :
- 00357529
- Volume :
- 96
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- Rocks & Minerals
- Publication Type :
- Academic Journal
- Accession number :
- 152255580
- Full Text :
- https://doi.org/10.1080/00357529.2021.1901208