Kopylovite
A valid IMA mineral species - pending publication
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Formula:
K2Ti(Si3O9)
Crystal System:
Hexagonal
Member of:
Type Locality:
Isostructural with:
Unique Identifiers
Mindat ID:
499398
Long-form identifier:
mindat:1:1:499398:4
IMA Classification of Kopylovite
Approved, Pending publication
IMA Formula:
K2Ti4+(Si3O9)
Approval year:
2026
Approval history:
IMA 2025-084
Classification of Kopylovite
9.CA.
9 : SILICATES (Germanates)
C : Cyclosilicates
A : [Si3O9]6- 3-membered single rings (dreier-Einfachringe), without insular complex anions
9 : SILICATES (Germanates)
C : Cyclosilicates
A : [Si3O9]6- 3-membered single rings (dreier-Einfachringe), without insular complex anions
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 for Standard |
|---|---|---|
| Kpy | 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 Kopylovite
Mindat Formula:
K2Ti(Si3O9)
Element Weights:
Elements listed:
Crystallography of Kopylovite
Crystal System:
Hexagonal
Class (H-M):
6/m - Dipyramidal
Space Group:
P63/m
Cell Parameters:
a = 6.7638(1) Å, c = 9.8934(2) Å
Ratio:
a:c = 1 : 1.463
Unit Cell V:
391.97 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.858 Å | (17) |
| 3.779 Å | (18) |
| 3.200 Å | (25) |
| 2.874 Å | (57) |
| 2.808 Å | (46) |
| 2.792 Å | (100) |
| 2.161 Å | (23) |
| 1.816 Å | (20) |
Type Occurrence of Kopylovite
Place of Conservation of Type Material:
Type material is deposited in the collections of the American Museum of Natural History, 200 Central Park West, New York, NY 10024-5102, USA, catalogue no. AMNH#115650
Synonyms of Kopylovite
Other Language Names for Kopylovite
Dutch:Kopyloviet
Relationship of Kopylovite to other Species
Member of:
Other Members of Benitoite Group:
Related Minerals - Strunz-mindat Grouping
| 9.CA. | 'UM1975-18-SiO:Mn' | α-MnSiO3 |
| 9.CA. | Raudseppite | Ba2Ca7(Si3O9)2(CO3)2Cl2 |
| 9.CA.05 | Bazirite | BaZr(Si3O9) |
| 9.CA.05 | Benitoite | BaTi(Si3O9) |
| 9.CA.05 | Pabstite | Ba(Sn,Ti)(Si3O9) |
| 9.CA.10 | Wadeite | K2Zr(Si3O9) |
| 9.CA.15 | Calciocatapleiite | CaZr(Si3O9) · 2H2O |
| 9.CA.15 | Catapleiite | Na2Zr(Si3O9) · 2H2O |
| 9.CA.20 | Pseudowollastonite | CaSiO3 |
| 9.CA.25 | Margarosanite | Ca2PbSi3O9 |
| 9.CA.25 | Walstromite | BaCa2(Si3O9) |
| 9.CA.25 | Anatolygurbanovite | SrCa2Si3O9 |
| 9.CA.25 | Breyite | Ca3Si3O9 |
| 9.CA.30 | Bobtraillite | (Na,◻)12(◻,Na)12Sr12Zr14(Si3O9)10[Si2BO7(OH)2]6 · 12H2O |
| 9.CA.35 | Rogermitchellite | Na6Sr12Ba2Zr13Si39B4O123(OH)6 · 20H2O |
Radioactivity
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 Kopylovite
mindat.org URL:
https://www.mindat.org/min-499398.html
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External Links:
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References for Kopylovite
Localities for Kopylovite
Showing 1 localities.
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.
USA (TL) | |
| Korolev et al. (2026) |
