Babylon NG
Simply the best definition!

Download it's free


Wikipedia English The Free Encyclopedia

Download this dictionary
Aeschynite-(Y) (or Aeschinite-(Y), Aeschynite-(Yt), Blomstrandine, Priorite) is a rare earth mineral of yttriumcalciumironthoriumtitaniumniobiumoxygen, and hydrogen with formula: (Y,Ca,Fe,Th)(Ti,Nb)2(O,OH)6. Its name comes from the Greek word for "shame". Its Mohs scale rating is 5 to 6.

See more at

© This article uses material from Wikipedia® and is licensed under the GNU Free Documentation License and under the Creative Commons Attribution-ShareAlike License

Mineralogy Database Dictionary

Download this dictionary

General Information:
 Chemical Formula:
(Molecular Weight = 274.97 gm)
Calcium 4.37 % Ca
Yttrium 19.40 % 
Titanium 30.47 % Ti
Niobium 8.45 % Nb
Iron 2.03 % Fe
Hydrogen 0.37 % 
Oxygen 34.91 % 
 Empirical Formula:
 IMA Status:
Accepted IMA 1966
TL: Norway, Urstad, Hittero
 Name Origin:
Named for its composition and from the Greek for "shame," in allusion to the inability of chemists, at the time of its discovery, to separate some of its constituents.
Physical Properties:
black, brownish black, brown, brownish yellow, or yellowish.
4.85 - 5.13, Average = 4.99
Transparent to subtranslucent
Massive - Uniformly indistinguishable crystals forming large masses., ,
5-6 - Between Apatite and Orthoclase
Adamantine - Resinous
reddish yellow
More details...

| Aeschynite-(Y) in Italian