Mineral Information and Data:

Ferri-ottoliniite
[]NaLi(Fe3+2Mg3)Si8O22(OH)2 [CNMNC approved formula]

Named for Luisa Ottolini (b. 1954), of CNR - Istituto di Geoscienze e Georisorse, Pavia, Italy, for her fundamental contributions to the advancement of ion-probe analysis of rock-forming minerals.

IMA status : Approved Species 2004 ()
CLASSIFICATION 
Dana
(8th edition) :
66.01.03d.01  (This Dana# Added)
  (66) Inosilicate Double-Width Unbranched Chains, W=2
  (66.01) with P=2 amphibole configuration
  (66.01.03d) Group 5, the Na-Ca-Mg-Fe-Mn-Li amphiboles, where Li(b) = 0.50 apfu
  
Nickel-Strunz
(10th edition) :
09.DE.15
  (09) Silicates
  (09.D) Inosilicates* Structural terminology per Liebau (1985)
  (09.DE) with 2-periodic double chains, Si4O11; Clinoamphiboles
  
Crystal system: Monoclinic System
Point group (H-M): 2/m — prismatic
  
  
  

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