Next Article in Journal
Production of Barium Sulfide from Low-Grade Barite Ores
Previous Article in Journal
Continental Rift Driven by Asthenosphere Flow and Lithosphere Weakening by Flood Basalts: South America and Africa Cenozoic Rifting
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Minerals
Volume 15
Issue 6
10.3390/min15060645
minerals-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Crystal Chemistry and Thermodynamic Properties of Mineralogically Probable Phosphate Ca2.62Cu1.94Co1.44(PO4)4—Structurally Related to Natural Arsenate Zubkovaite

by
Olga Yakubovich
1,*,
Galina Kiriukhina
1,2,
Larisa Shvanskaya
1 and
Alexander Vasiliev
1,3
1
Faculty of Geology, Lomonosov Moscow State University, 119991 Moscow, Russia
2
Korzhinskii Institute of Experimental Mineralogy RAS, 142432 Moscow, Russia
3
Functional Quantum Materials Research Laboratory, National University of Science and Technology MISIS, 119049 Moscow, Russia
*
Author to whom correspondence should be addressed.
Minerals 2025, 15(6), 645; https://doi.org/10.3390/min15060645 (registering DOI)
Submission received: 14 May 2025 / Revised: 7 June 2025 / Accepted: 11 June 2025 / Published: 13 June 2025
(This article belongs to the Section Crystallography and Physical Chemistry of Minerals & Nanominerals)
Versions Notes

Abstract

In this paper, we report the details of the synthesis, single crystal X-ray diffraction study, comparative crystal chemical analysis, and magnetic behavior of a new phosphate variation of the arsenate mineral zubkovaite. The title compound was obtained as a high-temperature flux product in the form of a partly ordered solid solution and was studied using scanning electron microscopy and microprobe analysis. It possesses a monoclinic symmetry with a P21/n space group; the unit cell parameters are a = 8.8040 (2), b = 4.8970 (1), c = 14.5772 (3), and β = 93.993(2)°. The Ca2.62Cu1.94Co1.44(PO4)4 crystal structure exhibits some statistical disorder. Our refinement showed that two positions are mixed, being occupied by Cu/Co (M1) and Ca/Co (M2) atoms. Two types of layers that are nearly parallel to the (101) plane can be distinguished in the structure. One of them is built by sharing corners of CuO4 squares, M1O5 square pyramids, and PO4 tetrahedra. The second type of layer formed from Ca2+- and M2+-centered polyhedra alternates in the [1¯01] direction to construct a tri-periodic framework. Ca2.62Cu1.94Co1.44(PO4)4 experiences long-range antiferromagnetic ordering at low temperatures, as evidenced by both dc—and ac—magnetic susceptibilities, as well as by the specific heat measurements.
Keywords: mineralogically probable phosphate; flux method; single crystal; X-ray diffraction; crystal structure; structural relations; thermodynamic properties mineralogically probable phosphate; flux method; single crystal; X-ray diffraction; crystal structure; structural relations; thermodynamic properties

Share and Cite

MDPI and ACS Style

Yakubovich, O.; Kiriukhina, G.; Shvanskaya, L.; Vasiliev, A. Crystal Chemistry and Thermodynamic Properties of Mineralogically Probable Phosphate Ca2.62Cu1.94Co1.44(PO4)4—Structurally Related to Natural Arsenate Zubkovaite. Minerals 2025, 15, 645. https://doi.org/10.3390/min15060645

AMA Style

Yakubovich O, Kiriukhina G, Shvanskaya L, Vasiliev A. Crystal Chemistry and Thermodynamic Properties of Mineralogically Probable Phosphate Ca2.62Cu1.94Co1.44(PO4)4—Structurally Related to Natural Arsenate Zubkovaite. Minerals. 2025; 15(6):645. https://doi.org/10.3390/min15060645

Chicago/Turabian Style

Yakubovich, Olga, Galina Kiriukhina, Larisa Shvanskaya, and Alexander Vasiliev. 2025. "Crystal Chemistry and Thermodynamic Properties of Mineralogically Probable Phosphate Ca2.62Cu1.94Co1.44(PO4)4—Structurally Related to Natural Arsenate Zubkovaite" Minerals 15, no. 6: 645. https://doi.org/10.3390/min15060645

APA Style

Yakubovich, O., Kiriukhina, G., Shvanskaya, L., & Vasiliev, A. (2025). Crystal Chemistry and Thermodynamic Properties of Mineralogically Probable Phosphate Ca2.62Cu1.94Co1.44(PO4)4—Structurally Related to Natural Arsenate Zubkovaite. Minerals, 15(6), 645. https://doi.org/10.3390/min15060645

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop