-
where the
dividing line is
placed at 30% magnesium. In addition, the
orthoamphiboles,
anthophyllite and gedrite,
which differ in
their aluminium content...
- U.
Appel & A. Jensen: A new gem
material from Greenland:
iridescent orthoamphibole [nuummite]. Gems and Gemology, 23, P. 3642, 1987 (Online Extract) K...
-
Ottensite Ots Oxyplumboroméite Opr
Ogdensburgite Obu
Omongwaite Omo
Orthoamphibole Oamp
Ottohahnite Ohn Oxy-schorl Osrl
Ognitite Ogn
Omphacite Omp Orthobrannerite...
- hornblende-biotite-plagioclase schist, biotite-plagioclase schist,
orthoamphibole-bearing
schist and gneiss, and
metamorphosed sulfide deposits. As inferred...
- chesterite,
which is
found in micas, is very
similar to
orthopyroxenes and
orthoamphiboles.
Chesterite is an
anisotropic mineral; therefore, it
allows light to...
- F.
Miller (1990). "Chemistry and
phase petrology of
amphiboles and
orthoamphibole-cordierite rocks, Old
Woman Mountains, SE California, USA" (PDF). Mineralogical...
