Mineral Information and Data:

Baratovite
KLi3Ca7Ti2(SiO3)12F2 [CNMNC approved formula]

Named for Rauf Baratovich Baratov, Soviet petrographer, of Tadzhikistan.

IMA status : Approved Species 1975 (IMA1974-055)
CLASSIFICATION 
Dana
(8th edition) :
61.01.04.01  
  (61) Cyclosilicate Six-Membered Rings
  (61.01) with [Si6O18] rings; possible (OH) and Al substitution
  (61.01.04) Baratovite group
  
Nickel-Strunz
(10th edition) :
09.CJ.25
  (09) Silicates
  (09.C) Cyclosilicates
  (09.CJ) [Si6O18]12- 6-membered single rings (sechser-Einfachringe), without insular complex anions
  
Crystal system: Monoclinic System
Point group (H-M): 2/m — prismatic
Unit cell: a = 16.94Å, b = 9.74Å, c = 20.9Å; α = 90°, β = 112.5°, γ = 90°
Crystal Habit: As platy deposits, to 5 cm; in patchy granular aggregates.
Twinning: On {001}, common
  
Color: White
Diaphaneity: Transparent to translucent
Luster: Vitreous, pearly in part
Hardness (Mohs): 3.5 - 4
Measured Density: 2.92 g/cm3
Cleavage: Perfect on {001}
Tenacity: Brittle
  
Geologic Setting: An accessory mineral in quartz-albite-aegirine veinlets and in albitites in syenites (Dara-i-Pioz massif, Tajikistan); a fine-grained accessory mineral in a small aegirine syenite stock in coarse-grained biotite granite (Iwagi Islet, Japan).
Mineral Association: Miserite, ekanite, titanite, quartz, albite, aegirine (Dara-i-Pioz massif, Tajikistan); albite, aegirine, pectolite, sugilite, allanite, titanite, andradite, zircon, apatite (Iwagi Islet, Japan)
  
Luminescent Properties: Brilliant bluish white fluorescence under SW UV.

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