Mineral Information and Data:

Ludlamite
Fe2+3(PO4)2 • 4H2O [CNMNC approved formula]

Named for Henry Ludlam (1824-1880), English mineralogist and collector.

IMA status : Valid species (Pre-IMA 1877) Grandfathered
CLASSIFICATION 
Dana
(8th edition) :
40.03.05.01  
  (40) Hydrated Phosphates
  (40.03) where (A++)3 (XO4)2 · x(H2O)
  (40.03.05) Ludlamite Group
  
Nickel-Strunz
(10th edition) :
08.CD.20
  (08) Phosphates, Arsenates, Vanadates
  (08.C) Phosphates without Additional Anions, with H2O
  (08.CD) With only medium-sized cations, RO4:H2O = 1:2
  
Crystal system: Monoclinic System
Point group (H-M): 2/m — prismatic
  
  
  
Other Properties: Gemstone Extremely Rare.

<<< BACK TO MINERAL SEARCH