Magnesiochangesite-(Ce)

A valid IMA mineral species - pending publication

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Discuss Magnesiochangesite-(Ce)

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Formula:

(Ca₈Ce)◻Mg(PO₄)₇

Crystal System:

Trigonal

Member of:

Cerite Supergroup

This page provides mineralogical data about Magnesiochangesite-(Ce).

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Unique IdentifiersHide

Mindat ID:

499971

Long-form identifier:

mindat:1:1:499971:9

Similar NamesHide

Magnesiochangesite-(Y)

A valid IMA mineral species - pending publication

(Ca₈Y)◻ Mg(PO₄)₇

IMA Classification of Magnesiochangesite-(Ce)Hide

IMA status:

Approved, Pending publication

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Symbol	Source	Reference for Standard
Mcgs-Ce	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Chemistry of Magnesiochangesite-(Ce)Hide

Mindat Formula:

(Ca₈Ce)◻Mg(PO₄)₇

Element Weights:

Element	% weight
O	38.960 %
Ca	27.884 %
P	18.856 %
Ce	12.186 %
Mg	2.114 %

Calculated from ideal end-member formula.

Elements listed:

Ca, Ce, Mg, O, P - search for minerals with similar chemistry

Crystallography of Magnesiochangesite-(Ce)Hide

Crystal System:

Trigonal

Class (H-M):

3m - Ditrigonal Pyramidal

Space Group:

R3c

Cell Parameters:

a = 10.38813(4) Å, c = 37.278(1) Å

Ratio:

a:c = 1 : 3.589

Unit Cell V:

3,483.84 Å³ (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.430 Å	(16)
3.190 Å	(16)
2.865 Å	(100)
2.591 Å	(39)
2.089 Å	(29)
1.878 Å	(12)
1.810 Å	(13)
1.715 Å	(20)

Locality:

Pakepake 005 meteorite, Qiemo Co. (Qerqen Co.; Cherchen Co.), Bayin'gholin Autonomous Prefecture, Xinjiang, China

Reference:

Wang, Y., Hou, Z., Che, X., Lanza, A.E., Cámara, F., Chen, Z., Yue, C., Liu, Z., Yin, Q., Long, T., Day, M.C., Innocenzi, F., Santello, L., Barbaro, A., Molinari, S., Wang, Z., Ren, J., Zhang, R., Qu, K. and Nestola, F. (2026) Magnesiochangesite-(Ce), IMA 2025-102. CNMNC Newsletter 91, Mineralogical Magazine, 90, https://doi.org/10.1180/mgm.2026.10236

Relationship of Magnesiochangesite-(Ce) to other SpeciesHide

Member of:

Cerite Supergroup

Other Members of Cerite Supergroup:

Cerite Group
Changesite-(Ce)	(Ca₈Ce)◻Fe²⁺(PO₄)₇	Trig. 3m : R3c
Karwowskiite	Ca₉Mg(Fe²⁺_0.5◻_0.5)(PO₄)₇	Trig. 3m : R3c
Magnesiochangesite-(Y)	(Ca₈Y)◻ Mg(PO₄)₇	Trig. 3m : R3m
Merrillite Group
Nipeiite-(Ce)	Ce₉Fe³⁺(SiO₄)₆[SiO₃(OH)](OH)₃	Trig. 3m : R3c