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Umbrianite

A valid IMA mineral species

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Photos of Umbrianite (5)

Umbrianite Gallery Search Photos of Umbrianite

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Umbrianite, etc.

Vispi Quarry, San Venanzo, Terni Province, Umbria, Italy

Umbrianite, etc.

Vispi Quarry, San Venanzo, Terni Province, Umbria, Italy

Umbrianite, etc.

Vispi Quarry, San Venanzo, Terni Province, Umbria, Italy

Umbrianite, etc.

Vispi Quarry, San Venanzo, Terni Province, Umbria, Italy

Umbrianite, etc.

Vispi Quarry, San Venanzo, Terni Province, Umbria, Italy

Umbrianite, etc.

Vispi Quarry, San Venanzo, Terni Province, Umbria, Italy

Umbrianite, etc.

Vispi Quarry, San Venanzo, Terni Province, Umbria, Italy

Umbrianite, etc.

Vispi Quarry, San Venanzo, Terni Province, Umbria, Italy

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About UmbrianiteHide

Flag of Umbria, Italy

Formula:

K₇Na₂Ca₂[Al₃Si₁₀O₂₉]F₂Cl₂

Colour:

colorless

Lustre:

Vitreous

Hardness:

Specific Gravity:

2.49 (Calculated)

Crystal System:

Orthorhombic

Name:

The mineral is named for Umbria, the region of central Italy where its type locality, the Pian di Celle volcano, is situated.

Type Locality:

ⓘ Vispi Quarry, San Venanzo, Terni Province, Umbria, Italy

Related to günterblassite and hillesheimite.
triplelayer phyllosilicate structure type

Unique IdentifiersHide

Mindat ID:

42376

Long-form identifier:

mindat:1:1:42376:6

GUID
(UUID V4):

98e9143e-d375-4154-b0fe-89ddda2b0d7b

IMA Classification of UmbrianiteHide

IMA status:

Approved

IMA Formula:

K₇Na₂Ca₂[Al₃Si₁₀O₂₉]F₂Cl₂

Approval year:

2011

First published:

2013

Type description reference:

Sharygin, Victor V., Pekov, Igor V., Zubkova, Natalia V., Khomyakov, Alexander P., Stoppa, Francesco, Pushcharovsky, Dmitry Yu. (2013) Umbrianite, K7Na2Ca2[Al3Si10O29]F2Cl2, a new mineral species from melilitolite of the Pian di Celle volcano, Umbria, Italy. European Journal of Mineralogy, 25 (4) 655-669 doi:10.1127/0935-1221/2013/0025-2306

Classification of UmbrianiteHide

Strunz-mindat (2024):

9.EB.25

9 : SILICATES (Germanates)
E : Phyllosilicates
B : Double nets with 4- and 6-membered rings

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
Ubn	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 UmbrianiteHide

Lustre:

Vitreous

Transparency:

Transparent

Colour:

colorless

Streak:

white

Hardness:

5 on Mohs scale

Hardness:

VHN₂₀=473 kg/mm² - Vickers

Cleavage:

Perfect
perfect on (010) and distinct on (100) and (001).

Fracture:

Irregular/Uneven, Step-Like

Density:

2.49 g/cm³ (Calculated)

Optical Data of UmbrianiteHide

Type:

Biaxial (-)

RI values:

n_α = 1.537(2) n_β = 1.543(2) n_γ = 1.544(2)

2V:

Measured: 30° (10), Calculated: 44.3°

Max Birefringence:

δ = 0.007

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Surface Relief:

Low

Dispersion:

none

Pleochroism:

Non-pleochroic

Chemistry of UmbrianiteHide

Mindat Formula:

K₇Na₂Ca₂[Al₃Si₁₀O₂₉]F₂Cl₂

Elements listed:

Al, Ca, Cl, F, K, Na, O, Si - search for minerals with similar chemistry

Crystallography of UmbrianiteHide

Crystal System:

Orthorhombic

Class (H-M):

mmm (2/m 2/m 2/m) - Dipyramidal

Space Group:

Pmmn

Setting:

Pmmn

Cell Parameters:

a = 7.0618(5) Å, b = 38.420(2) Å, c = 6.5734(4) Å

Ratio:

a:b:c = 0.184 : 1 : 0.171

Unit Cell V:

1,783.46 Å³ (Calculated from Unit Cell)

Crystal StructureHide

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0020030	Umbrianite	Sharygin V V, Pekov I V, Zubkova N V, Khomyakov A P, Stoppa F, Pushcharovsky D Y (2013) Umbrianite, K7Na2Ca2[Al3Si10O29]F2Cl2, a new mineral species from melilitolite of the Pian di Celle volcano, Umbria, Italy European Journal of Mineralogy 25 655-669		2013	Pian di Celle volcano, Umbria, Italy	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Umbrianite'
loop_
_publ_author_name
'Sharygin V V'
'Pekov I V'
'Zubkova N V'
'Khomyakov A P'
'Stoppa F'
'Pushcharovsky D Y'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 25 
_journal_year 2013
_journal_page_first 655
_journal_page_last 669
_publ_section_title
;
 Umbrianite, K7Na2Ca2[Al3Si10O29]F2Cl2, a new mineral species from melilitolite
 of the Pian di Celle volcano, Umbria, Italy
;
_database_code_amcsd 0020030
_chemical_compound_source 'Pian di Celle volcano, Umbria, Italy'
_chemical_formula_sum 'K6.5 Na1.6 Ca2.5 Si9.6 Al3.1 Fe.3 Mg.1 O29 F2.1 Cl1.9'
_cell_length_a 7.0618
_cell_length_b 38.420
_cell_length_c 6.5734
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1783.458
_exptl_crystal_density_diffrn      2.486
_symmetry_space_group_name_H-M 'P m m n'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,z'
  '-x,1/2+y,-z'
  '1/2-x,y,z'
  '1/2+x,-y,-z'
  '1/2+x,1/2+y,-z'
  '1/2-x,1/2-y,z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
K(1)   0.25000   0.33849   0.11120   1.00000   0.06170
K(2)   0.25000   0.25000  -0.27750   0.80000   0.03510
Na(2)   0.25000   0.25000  -0.27750   0.08000   0.03510
K(3)   0.25000   0.41285  -0.28240   0.90000   0.03530
Na(3)   0.25000   0.41285  -0.28240   0.06000   0.03530
K(4)   0.25000   0.66020   0.51980   0.45000   0.03500
K(4*)   0.15700   0.66030   0.52300   0.25000   0.04900
Na   0.00000   0.50000   0.50000   0.70000   0.02320
Ca   0.00000   0.50000   0.50000   0.30000   0.02320
Si(1)   0.25000   0.75000   0.39610   0.50000   0.01440
Al(1)   0.25000   0.75000   0.39610   0.50000   0.01440
Si(2)   0.25000   0.70109   0.02310   1.00000   0.02340
Si(3)   0.25000   0.56856  -0.57950   1.00000   0.01550
Si(4)  -0.03300   0.57166  -0.21930   1.00000   0.01140
Si(5)  -0.01570   0.75000   0.78050   0.55000   0.02830
Al(5)  -0.01570   0.75000   0.78050   0.30000   0.02830
Fe(5)  -0.01570   0.75000   0.78050   0.15000   0.02830
Al   0.25000   0.61619   0.03320   1.00000   0.01650
Ca   0.25000   0.50431  -0.99770   0.95000   0.01110
Mg   0.25000   0.50431  -0.99770   0.05000   0.01110
O(1)   0.06310   0.71460   0.90750   1.00000   0.07800
O(2)   0.05120   0.60230  -0.08870   1.00000   0.06600
O(3)   0.25000   0.53170  -0.68200   1.00000   0.02800
O(4)   0.25000   0.60210  -0.72390   1.00000   0.04600
O(5)  -0.01690   0.53449  -0.12260   1.00000   0.04900
O(6)   0.25000   0.65950   0.03320   1.00000   0.07000
O(7)   0.05820   0.75000   0.53860   1.00000   0.05100
O(8)   0.75000   0.75000   0.79700   1.00000   0.11600
O(9)   0.06330   0.57260  -0.43750   1.00000   0.05300
O(10)   0.25000   0.71530   0.25640   1.00000   0.04400
O(11)   0.75000   0.58260  -0.26250   1.00000   0.03600
F   0.25000   0.47937  -0.31760   1.00000   0.02470
Cl   0.75000   0.66536   0.38550   0.95000   0.09900
F   0.75000   0.66536   0.38550   0.05000   0.09900

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
9.65 Å	(100)
6.91 Å	(43)
6.59 Å	(97)
3.884 Å	(25)
3.293 Å	(77)
3.118 Å	(70)
2.903 Å	(52)
2.819 Å	(53)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 4b: Highly evolved igneous rocks	>3.0
35 : Ultra-alkali and agpaitic igneous rocks

Type Occurrence of UmbrianiteHide

Type Locality:

ⓘ Vispi Quarry, San Venanzo, Terni Province, Umbria, Italy

General Appearance of Type Material:

rectangular, lamellar or lath-shaped crystals (up to 25 x 30 x 200 mm in size), typically coarse and flattened on {010}, and their sheaflike clusters (up to 200–500 mm across) in a groundmass of melilitolite

Place of Conservation of Type Material:

Type material is deposited in the collections of the Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration number 4157/1.

Geological Setting of Type Material:

Vesicular melilitolites

Associated Minerals at Type Locality:

Leucite

Kalsilite

Fluorophlogopite

Reference:

Sharygin, V.V., Pekov, I.V., Zubkova, N.V., Khomyakov, A.P., Stoppa, F., Pushcharovsky, D.Y. (2013) Umbrianite, K7Na2Ca2 [Al3Si10O29] F2Cl2, a new mineral species from melilitolite of the Pian di Celle volcano, Umbria, Italy. European Journal of Mineralogy: 25(4): 655-669.

Synonyms of UmbrianiteHide

IMA2011-074

Common AssociatesHide

Associated Minerals Based on Photo Data:

6 photos of Umbrianite associated with Fluorophlogopite	KMg₃(Si₃Al)O₁₀F₂
3 photos of Umbrianite associated with Magnetite	Fe²⁺Fe³⁺₂O₄

Related Minerals - Strunz-mindat Grouping Hide

9.EB.	Natromelansonite	Na₃Zr[Si₇AlO₁₉] · 4H₂O	Mon. 2/m : P2₁/m
9.EB.05	Macdonaldite	BaCa₄Si₁₆O₃₆(OH)₂ · 10H₂O	Orth.
9.EB.05	Rhodesite	KHCa₂Si₈O₁₉ · 5H₂O	Orth. mmm (2/m 2/m 2/m)
9.EB.05	Melansonite	Na◻KZrSi₈O₁₉ · 5H₂O	Orth. mmm (2/m 2/m 2/m) : Pmma
9.EB.10	Delhayelite	(Na,K)₁₀Ca₅Al₆Si₃₂O₈₀(Cl₂,F₂,SO₄)₃ · 18H₂O	Orth.
9.EB.10	Hydrodelhayelite	KCa₂AlSi₇O₁₇(OH)₂ · 6H₂O	Orth. mm2
9.EB.15	Monteregianite-(Y)	(Na,K)₆(Y,Ca)₂Si₁₆O₃₈ · 10H₂O	Mon. 2/m
9.EB.20	Carletonite	KNa₄Ca₄Si₈O₁₈(CO₃)₄(OH,F) · H₂O	Tet. 4/mmm (4/m 2/m 2/m) : P4/mbm
9.EB.20	Fluorcarletonite	KNa₄Ca₄Si₈O₁₈(CO₃)₄F · H₂O	Tet.
9.EB.25	Günterblassite	(K,Ca,Ba)₂(Fe,Ca,Mg,Na)[(Si,Al)₁₃O₂₅(OH)₄] · 7H₂O ·	Orth. mm2 : Pmn2₁
9.EB.25	Hillesheimite	(K,Ca,Ba,◻)₂(Mg,Fe,Ca,◻)₂[(Si,Al )₁₃O₂₃(OH)₆](OH) · 8H₂O	Orth. mmm (2/m 2/m 2/m) : Pmmn
9.EB.30	Fivegite	K₄Ca₂[AlSi₇O₁₇(O_2-xOH_x)][(H₂O)_2-xOH_x]Cl	Orth. mm2 : Pmn2₁

Fluorescence of UmbrianiteHide

In UV light:

none

Other InformationHide

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 UmbrianiteHide

mindat.org URL:

https://www.mindat.org/min-42376.html
Please feel free to link to this page.

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External Links:

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Look for Umbrianite on Mineralien Atlas

Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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References for UmbrianiteHide

Reference List:

Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2011) New minerals and nomenclature modifications approved in 2011. CNMNC Newsletter No 11. Mineralogical Magazine, 75 (6) 2887-2893 doi:10.1180/minmag.2011.075.6.2887

(2023) Umbrianite. Handbook of Mineralogy. Mineralogical Society of America

Localities for UmbrianiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the

symbol to view information about a locality. The

symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- 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). ~~Struck out~~ - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.


DR Congo
North Kivu Nyiragongo Territory ⓘ Nyiragongo Volcano	Andersen et al. (2014)

Italy (TL)
Umbria Terni Province San Venanzo ⓘ Vispi Quarry (TL)	Williams et al. (2011) +2 other references

Umbrianite

About UmbrianiteHide

Unique IdentifiersHide

IMA Classification of UmbrianiteHide

Classification of UmbrianiteHide

Mineral SymbolsHide

Physical Properties of UmbrianiteHide

Optical Data of UmbrianiteHide

Chemistry of UmbrianiteHide

Crystallography of UmbrianiteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of UmbrianiteHide

Synonyms of UmbrianiteHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

Fluorescence of UmbrianiteHide

Other InformationHide

Internet Links for UmbrianiteHide

References for UmbrianiteHide

Localities for UmbrianiteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide