Mineral Information and Data:

Burbankite
(Na,Ca)3(Sr,Ba,Ce)3(CO3)5 [CNMNC approved formula]

Named for Wilbur Sweet Burbank (1898-1975), geologist of the U.S. Geological Survey.

IMA status : Valid species (Pre-IMA 1955) Grandfathered
CLASSIFICATION 
Dana
(8th edition) :
14.04.04.01  
  (14) Anhydrous Carbonates
  (14.04) with Compound Formula A+2 B++2 (CO3)4
  (14.04.04) Burbankite Group (Hexagonal)
  
Nickel-Strunz
(10th edition) :
05.AC.30
  (05) Carbonates and Nitrates
  (05.A) Carbonates without additional anions, without H2O
  (05.AC) Alkali and alkali-earth carbonates
  
Crystal system: Hexagonal System
Point group (H-M): 6/mmm (or 6/m 2/m 2/m) — dihexagonal-dipyramidal
  
  
  
Other Properties: Gemstone Extremely Rare.

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