Raman Open Database

Information card for entry 2100018

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Structure parameters

Mineral name	Pharmacolite
Formula	As Ca H5 O6
Title of publication	Determination of hydrogen atom positions in the crystal structure of pharmacolite, CaHAsO4(H2O)2, by neutron diffraction Locality: Andreasberg, Harz Mts, Lower Saxony, Germany
Authors of publication	Ferraris, G.; Jones, D. W.; Yerkess, J.
Journal of publication	Acta Crystallographica, Section B
Year of publication	1971
Journal volume	27
Pages of publication	349 - 354
a	5.9745 Å
b	15.434 Å
c	6.2797 Å
α	90°
β	114.83°
γ	90°
Cell volume	525.525 Å³
Number of distinct elements	4
Hermann-Mauguin space group symbol	I 1 a 1
Hall space group symbol	I -2ya
Excitation wavelength	532 nm
Measurement resolution	4 cm^-1
Polarization direction	unoriented
Power on sample	15 mW
Spot size of the device	1 μm
Company of the measurement device	Thermo Scientific
Model of the measurement device	Nicolet Almega XR
Has coordinates	No
Has disorder	No
Has F_obs	No

Version history

Revision	Date	Message	Files
674 (current)	2018-05-24	cif/ Adding structures of 2100018 via cif-deposit CGI script.	2100018.rod