Jadeitite is a
metamorphic rock found in
blueschist grade metamorphic terrains. It is
found in isolated
metasomatically
altered bodies within
serpentinite
associated with
subduction zone
environments. Jadeitite consists almost entirely of
jadeite pyroxene and is
typically mined as a source of the ornamental rock or
gemstone,
jade.
Occurrences include
Myanmar
, Guatemala
, Japan
, Kazakhstan
and in the Coast Ranges
of western North America.
References
- Harlow, G.E., Jadeitites, albitites and related rocks from the
Motagua Fault Zone, Guatemala, Journal of Metamorphic
Geology 12 (1), 49–68 (1994)
- Sorensen et al., "The origin of jadeitite-forming subduction-zone
fluids: CL-guided SIMS oxygen-isotope and trace-element
evidence", American Mineralogist, Volume 91, pages
979–996 (2006)
- Sorensen, S. S, "Geochemistry of a Jedetite-Serpentine Contact,
Guatemala", Geological Society of America (GSA) 2005 Annual
Meeting
- "Guatemala's Olmec Jade", Geotimes,
August 2002
Wikis
Map
Search
