Common molecules sample 50880

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Empirical formula:	H_4.03Al_.11Ca_3.76F_.41K_.882Na_3.65O_31.51Si_7.75
a:	13.178 Å
b:	13.178 Å
c:	16.695 Å
α (alpha):	90.00 °
β (beta):	90.00 °
γ (gamma):	90.00 °
Volume:	2899.25 Å³
Space group:	P4/mbm
Calculated density:	2.304 g/cm³
Z:	4
Formula weight:	1005.714 g/mole
R(F):	0.0368
Common name:	Carletonite
ICSD collection code:	12100
Structural formula:	K_.882Na_3.65Ca_3.76Si_7.75Al_.11O₁₈(CO₃)₄F_.41(OH)_.74(H₂O)_.77H_1.75
Short description:	Carletonite is a rare mineral found only in Mt Saint-Hilaire, Quebec, Canada.
Keyword:	Mt Saint-Hilaire
Keyword:	pleochroism
Citation of a publication:	Reference: American Mineralogist. 57 (1972) p765-778. Authors: Chao,G.Y.
IUPAC name:	Aluminium calcium potassium sodium silicate carbonate fluoride hydroxide hydrate
Layman's explanation:	Carletonite was identified in 1971 by G.Y. Chao, a geologist at Carleton University which is located in Quebec Canada; hence the name. Carletonite is a very rare crystal and has only been found in one location, Mt Saint-Hilaire in Quebec. This mineral has a property called pleochroism where it appears in different colors; blue, colorless, pink, or white; depending on the angle at which it is viewed. The crystals consist of alternating layers of silicate sheets and potassium, sodium, and calcium. It is mainly used as a mineral specimen and occasionally as a gem.
Lab name:	Common molecules
Sample provider:	Obtained from the Inorganic Crystal Structure Database
Status:	Complete, visible to public

Repository Files:
50880.CIF	50880.crt	50880.GIF	50880.pdb	50880.sdt