Calcioancylite-(La)
A valid IMA mineral species
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Formula:
(LaCa)(CO3)2(OH) · H2O
Colour:
colourless to pale pinkish gray
Lustre:
Vitreous
Hardness:
4
Specific Gravity:
4.324 (Calculated)
Crystal System:
Orthorhombic
Member of:
Name:
for its relation to ancylite-(La) and similar species
Type Locality:
This page provides mineralogical data about Calcioancylite-(La).
Unique Identifiers
Mindat ID:
55761
Long-form identifier:
mindat:1:1:55761:0
GUID
(UUID V4):
(UUID V4):
563c036a-7c95-4d5b-8f54-6bbf1f2e7ff2
IMA Classification of Calcioancylite-(La)
Approved
IMA Formula:
(LaCa)(CO3)2(OH)(H2O)
Type description reference:
Wang, Yanjuan, Gu, Xiangping, Dong, Guochen, Hou, Zengqian, Nestola, Fabrizio, Yang, Zhusen, Fan, Guang, Wang, Yufei, Qu, Kai (2023) Calcioancylite-(La), (La,Ca)2(CO3)2(OH,H2O)2, a new member of the ancylite group from Gejiu nepheline syenite, Yunnan Province, China. Mineralogical Magazine, 87 (4) 554-560 doi:10.1180/mgm.2023.28
Classification of Calcioancylite-(La)
5.DC.
5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
C : With large cations
5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
C : With large cations
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Canc-La | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Calcioancylite-(La)
Vitreous
Transparency:
Transparent, Translucent
Colour:
colourless to pale pinkish gray
Streak:
white
Hardness:
4 on Mohs scale
Hardness:
VHN50=175 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
4.324 g/cm3 (Calculated)
Optical Data of Calcioancylite-(La)
Type:
Biaxial (-)
RI values:
nα = 1.662 nβ = 1.730 nγ = 1.771
2V:
Measured: 70° (1), Calculated: 73°
Max Birefringence:
δ = 0.109
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r < v.
Chemistry of Calcioancylite-(La)
Mindat Formula:
(LaCa)(CO3)2(OH) · H2O
Chemical Analysis
Empirical formulas:
| Sample ID | Empirical Formula |
|---|---|
| 1 | (La0.58Ce0.55Pr0.14Nd0.10Ca0.39Sr0.20K0.04)Σ2.00(CO3)2[(OH)1.25F0.06(H2O)0.69]Σ2.00 |
Sample references:
Crystallography of Calcioancylite-(La)
Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:
a = 5.0253(3) Å, b = 8.5152(6) Å, c = 7.2717(6) Å
Ratio:
a:b:c = 0.59 : 1 : 0.854
Unit Cell V:
311.17 ų (Calculated from Unit Cell)
Z:
2
Comment:
the space group is Pmcn
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.322 Å | (75) |
| 3.693 Å | (68) |
| 2.956 Å | (80) |
| 2.640 Å | (47) |
| 2.520 Å | (55) |
| 2.335 Å | (100) |
| 2.077 Å | (44) |
| 2.012 Å | (42) |
Type Occurrence of Calcioancylite-(La)
General Appearance of Type Material:
aggregates of subhedral grains, and the size of single crystals varies between 5–20 µm
Place of Conservation of Type Material:
mineralogical collections of the Geological Museum of China, no. 16, Yangrou Hutong, Xisi, Beijing 100031, People’s Republic of China, catalogue number M16129
Geological Setting of Type Material:
nepheline syenite
Associated Minerals at Type Locality:
Synonyms of Calcioancylite-(La)
Relationship of Calcioancylite-(La) to other Species
Member of:
Other Members of this group:
| Ancylite-(Ce) | CeSr(CO3)2(OH) · H2O | Orth. mmm (2/m 2/m 2/m) |
| Ancylite-(La) | LaSr(CO3)2(OH) · H2O | Orth. mmm (2/m 2/m 2/m) |
| Calcioancylite-(Ce) | (Ce,Ca,Sr)CO3(OH,H2O) | Orth. mmm (2/m 2/m 2/m) |
| Calcioancylite-(Nd) | Ca(Nd,La,Ce)(CO3)2(OH).H2O | Mon. m : Pm |
| Gysinite-(Ce) | PbCe(CO3)2(OH)(H2O) | Orth. mmm (2/m 2/m 2/m) |
| Gysinite-(La) | PbLa(CO3)2(OH) · H2O | Orth. mmm (2/m 2/m 2/m) |
| Gysinite-(Nd) | PbNd(CO3)2(OH) · H2O | Orth. mmm (2/m 2/m 2/m) |
Related Minerals - Strunz-mindat Grouping
| 5.DC. | Gysinite-(La) | PbLa(CO3)2(OH) · H2O |
| 5.DC. | Gysinite-(Ce) | PbCe(CO3)2(OH)(H2O) |
| 5.DC.05 | Ancylite-(Ce) | CeSr(CO3)2(OH) · H2O |
| 5.DC.05 | Calcioancylite-(Ce) | (Ce,Ca,Sr)CO3(OH,H2O) |
| 5.DC.05 | Calcioancylite-(Nd) | Ca(Nd,La,Ce)(CO3)2(OH).H2O |
| 5.DC.05 | Gysinite-(Nd) | PbNd(CO3)2(OH) · H2O |
| 5.DC.05 | Unnamed (La-analogue of Calcioancylite-(Ce)) | (La,Ce,Nd,Ca,Sr)CO3(OH,H2O) |
| 5.DC.05 | Ancylite-(La) | LaSr(CO3)2(OH) · H2O |
| 5.DC.05 | Kozoite-(Nd) | (Nd,La,Sm,Pr)(CO3)(OH) |
| 5.DC.05 | Kozoite-(La) | (La,Nd)(CO3)(OH) |
| 5.DC.05 | Unnamed (Ce-analogue of Kozoite-(La) and -(Nd)) | (Ce,La)(CO3)(OH) |
| 5.DC.10 | Kamphaugite-(Y) | Ca(Y,REE)(CO3)2(OH) · H2O |
| 5.DC.15 | Sheldrickite | NaCa3(CO3)2F3 · H2O |
| 5.DC.20 | Thomasclarkite-(Y) | (Na,Ce)(Y,REE)(HCO3)(OH)3 · 4H2O |
| 5.DC.25 | Peterbaylissite | [Hg2]2+3[CO3]2(OH)2 · 4H2O |
| 5.DC.30 | Clearcreekite | [Hg2]2+3[CO3]2(OH)2 · 4H2O |
| 5.DC.35 | Niveolanite | NaBe(CO3)(OH) · 2H2O |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Calcioancylite-(La)
mindat.org URL:
https://www.mindat.org/min-55761.html
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References for Calcioancylite-(La)
Reference List:
Miyawaki, Ritsuro, Hatert, Frédéric, Pasero, Marco, Mills, Stuart J. (2022) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 65. European Journal of Mineralogy, 34 (1) 143-148 doi:10.5194/ejm-34-143-2022
Wang, Yanjuan, Gu, Xiangping, Dong, Guochen, Hou, Zengqian, Nestola, Fabrizio, Yang, Zhusen, Fan, Guang, Wang, Yufei, Qu, Kai (2023) Calcioancylite-(La), (La,Ca)2(CO3)2(OH,H2O)2, a new member of the ancylite group from Gejiu nepheline syenite, Yunnan Province, China. Mineralogical Magazine, 87 (4) 554-560 doi:10.1180/mgm.2023.28
Localities for Calcioancylite-(La)
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Canada | |
| Canadian Museum of Nature collection |
China (TL) | |
| Miyawaki et al. (2022) |
| Wang et al. (2023) +1 other reference |
Norway | |
| Husdal (2023) |
