Mineral Information and Data:

Kentbrooksite
(Na,REE)15(Ca,REE)6Mn3Zr3NbSi25O73(O,OH,H2O)3(F,Cl)2 [CNMNC approved formula]

Named for Dr. C. Kent Brooks (1943-), leader of fourteen geological expeditions to the Kangerdlugssuaq area of east Greenland.

IMA status : Approved Species 1998 ()
CLASSIFICATION 
Dana
(8th edition) :
64.01.01.03  (This Dana# Added)
  (64) Cyclosilicates
  (64.01) Cyclosilicate Rings with Other Anions and Insular Silicate Groups with mixed ring types
  (64.01.01) Eudialyte Group
  
Nickel-Strunz
(10th edition) :
09.CO.10
  (09) Silicates
  (09.C) Cyclosilicates
  (09.CO) [Si9O27]18- 9-membered rings
  
Crystal system: Trigonal System
Point group (H-M): 3m — ditrigonal-pyramidal
  
  
  

<<< BACK TO MINERAL SEARCH