Crystals were found at the contact zone between high-temparature hydrothermal vein of mostly calcite and host metasomatically altered amphibolite. The contact zone consists of quartz/marialite/albite/beryl/pyrrhotite. Claims have been made that this locality has had an analysis showing a chromium value, but no published analyses. Crystals vary widely in color, from pale to emerald green to bluish green (as do emerald crystals at other localities). The hydrothermal, contact zone geo-environment and assemblage is typical of many other emerald localities.