See Also: psilomelane(medicine)
psilomelane(dictionary)
psilomelane(encyclopedia)

synergy (iou) and psilomelane (sh)


synergy (iou)



synergy noun. M17.
[mod. Latin synergia from Greek sunergia, from sunergein work together: see -Y3.]
Cooperation. Only in M17.
Orig., combined or correlated action of a group of parts of the body (as motor neurones or muscles). Now also gen., the production by two or more agents, substances, etc., of a combined effect greater than the sum of their separate effects (cf. SYNERGISM 2). M19.
Increased effectiveness, achievement, etc., produced by combined action, cooperation, etc. M20.

psilomelane (sh)




Barium and manganese hydrous oxide, BaMnMn8O16(OH)4, an important ore mineral of manganese.

What was formerly called psilomelane is now known to be a mixture of several manganese oxides of which romanechite is a major constituent. Such manganese oxide mixtures may form large deposits and may occur in lake or swamp bedded deposits and clays; it has been found in Germany, France, Belgium, Scotland, Sweden, India, and the U.S. The name psilomelane (from the Greek words for "smooth" and "black") refers to its typical black, smooth-surfaced, grape-bunch-shaped or stalactitic masses.