Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Benitoite from
Šebkovice ultrapotassic lamproite dyke, Šebkovice, Třebíč District, Vysočina Region, Czech Republic


Locality type:Dike
Classification
Species:Benitoite
Formula:BaTi(Si3O9)
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Extremely Rare
Confirmation
Validity:Confirmed
Confirmation Methods:Polarised-light microscopy
Data
Mineral Data:Click here to view Benitoite data
Locality Data:Click here to view Šebkovice ultrapotassic lamproite dyke, Šebkovice, Třebíč District, Vysočina Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:757337
Long-form Identifier:1:3:757337:8
GUID (UUID V4):0
References
Elsevier.
KRMÍČEK L. 2010: Pre-Mesozoic lamprophyres and lamproites of the Bohemian Massif (Czech Republic, Poland, Germany, Austria). Mineralogia - Special Papers, vol. 37, pp. 38-46
Krmíček, L., Cempírek J., Havlín A., Přichystal A., Houzar S, Krmíčková M, Gadas P. (2011): Mineralogy and petrogenesis of a Ba–Ti–Zr-rich peralkaline dyke from Šebkovice (Czech Republic): Recognition of the most lamproitic Variscan intrusion. In: Lithos, 121 (2011), 75-86
Krmíček, L., & Houzar, S. Výskyt (2012) Mineralogicky Pozoruhodného Lamproitu V Třebíčském Plutonu Ve StřítežI U Třebíče. Acta Mus. Moraviae, Sci. geol. XCVII (2012): 1, 71–88
 
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