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Roggianite

A valid IMA mineral species

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Photos of Roggianite (41)

Roggianite Gallery Search Photos of Roggianite

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Roggianite

Alpe Rosso, Orcesco, Druogno, Verbano-Cusio-Ossola Province, Piedmont, Italy

Roggianite

Alpe Rosso, Orcesco, Druogno, Verbano-Cusio-Ossola Province, Piedmont, Italy

Roggianite

Alpe Rosso, Orcesco, Druogno, Verbano-Cusio-Ossola Province, Piedmont, Italy

Roggianite

Alpe Rosso, Orcesco, Druogno, Verbano-Cusio-Ossola Province, Piedmont, Italy

Roggianite

Alpe Rosso, Orcesco, Druogno, Verbano-Cusio-Ossola Province, Piedmont, Italy

Roggianite

Alpe Rosso, Orcesco, Druogno, Verbano-Cusio-Ossola Province, Piedmont, Italy

Roggianite

Alpe Rosso, Orcesco, Druogno, Verbano-Cusio-Ossola Province, Piedmont, Italy

Roggianite

Alpe Rosso, Orcesco, Druogno, Verbano-Cusio-Ossola Province, Piedmont, Italy

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About RoggianiteHide

Aldo G. Roggiani

Formula:

Ca₂Be(OH)₂Al₂Si₄O₁₃ · 2.5H₂O

Colour:

White, pale yellow

Specific Gravity:

2.02

Crystal System:

Tetragonal

Member of:

Zeolite Group

Name:

Named in honor of Aldo Giuseppe Roggiani (1914-1986), Italian science teacher who found the first specimen. He wrote many papers about the mineralogy of the Ossola region.

Type Locality:

ⓘ Alpe Rosso, Orcesco, Druogno, Verbano-Cusio-Ossola Province, Piedmont, Italy

Zeolite Group.

Unique IdentifiersHide

Mindat ID:

3438

Long-form identifier:

mindat:1:1:3438:4

GUID
(UUID V4):

d8b2a5d6-de77-45c7-99e3-14bc088166d6

IMA Classification of RoggianiteHide

IMA status:

Approved

IMA Formula:

Ca₂BeAl₂Si₄O₁₃(OH)₂ · nH₂O (n < 2.5)

First published:

1969

Type description reference:

Passaglia, E. (1969) Roggianite, a new silicate mineral. Clay Minerals, 8 (1) 107-111 doi:10.1180/claymin.1969.008.1.11

Classification of RoggianiteHide

Strunz-mindat (2024):

9.GB.20

9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H₂O; zeolite family
B : Chains of single connected 4-membered rings

Dana 8th ed.:

77.1.7.4

77 : TECTOSILICATES Zeolites
1 : Zeolite group - True zeolites

Hey's CIM Ref.:

16.10.29

16 : Silicates Containing Aluminum and other Metals
10 : Aluminosilicates of Ca and alkalis

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
Rog	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 RoggianiteHide

Transparency:

Translucent

Colour:

White, pale yellow

Cleavage:

Perfect
{110}

Density:

2.02 g/cm³ (Measured) 2.34 g/cm³ (Calculated)

Optical Data of RoggianiteHide

Type:

Uniaxial (+)

RI values:

n_ω = 1.527(1) n_ε = 1.535(1)

Max Birefringence:

δ = 0.008

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

Surface Relief:

Low

Chemistry of RoggianiteHide

Mindat Formula:

Ca₂Be(OH)₂Al₂Si₄O₁₃ · 2.5H₂O

Elements listed:

Al, Be, Ca, H, O, Si - search for minerals with similar chemistry

Common Impurities:

Sr,Na,K

Crystallography of RoggianiteHide

Crystal System:

Tetragonal

Class (H-M):

4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal

Space Group:

I4/mcm

Setting:

I4/mcm

Cell Parameters:

a = 18.33(2) Å, c = 9.16(1) Å

Ratio:

a:c = 1 : 0.5

Unit Cell V:

3,077.66 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)
0014856	Roggianite	Giuseppetti G, Mazzi F, Tadini C, Galli E (1991) The revised crystal structure of roggianite: Ca2[Be(OH)2Al2Si4O13]<2.5H2O Neues Jahrbuch fur Mineralogie, Monatshefte 1991 307-314		1991	Val Vigezzo, Novara, Italy	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Roggianite'
loop_
_publ_author_name
'Giuseppetti G'
'Mazzi F'
'Tadini C'
'Galli E'
_journal_name_full 'Neues Jahrbuch fur Mineralogie, Monatshefte'
_journal_volume 1991 
_journal_year 1991
_journal_page_first 307
_journal_page_last 314
_publ_section_title
;
 The revised crystal structure of roggianite: Ca2[Be(OH)2Al2Si4O13]<2.5H2O
;
_database_code_amcsd 0014856
_chemical_compound_source 'Val Vigezzo, Novara, Italy'
_chemical_formula_sum 'Ca2 Be O17.34 H6.68 Al2 Si4'
_cell_length_a 18.33
_cell_length_b 18.33
_cell_length_c 9.16
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 3077.658
_exptl_crystal_density_diffrn      2.329
_symmetry_space_group_name_H-M 'I 4/m c m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2+z'
  '-y,-x,1/2+z'
  '1/2-y,1/2-x,+z'
  'y,x,1/2-z'
  '1/2+y,1/2+x,-z'
  'y,-x,-z'
  '1/2+y,1/2-x,1/2-z'
  '-y,x,z'
  '1/2-y,1/2+x,1/2+z'
  'x,-y,1/2+z'
  '1/2+x,1/2-y,+z'
  '-x,y,1/2-z'
  '1/2-x,1/2+y,-z'
  'x,y,-z'
  '1/2+x,1/2+y,1/2-z'
  '-x,-y,z'
  '1/2-x,1/2-y,1/2+z'
  'y,x,1/2+z'
  '1/2+y,1/2+x,+z'
  '-y,-x,1/2-z'
  '1/2-y,1/2-x,-z'
  '-y,x,-z'
  '1/2-y,1/2+x,1/2-z'
  'y,-x,z'
  '1/2+y,1/2-x,1/2+z'
  '-x,y,1/2+z'
  '1/2-x,1/2+y,+z'
  'x,-y,1/2-z'
  '1/2+x,1/2-y,-z'
  '-x,-y,-z'
  '1/2-x,1/2-y,1/2-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
Ca   0.17690   0.17690   0.25000   1.00000   0.01700
Be   0.26190   0.23810   0.00000   1.00000   0.01800
O6   0.29350   0.20650   0.15120   1.00000   0.01700
H1   0.32400   0.17600   0.14500   1.00000   0.03000
Al   0.21770   0.00000   0.25000   1.00000   0.01100
Si1   0.10440   0.28100   0.00000   1.00000   0.01200
Si2   0.11590   0.04080   0.00000   1.00000   0.01000
O1   0.13530   0.36470   0.00000   1.00000   0.01600
O2   0.16410   0.05790   0.14570   1.00000   0.01600
O3   0.05790   0.26730   0.14610   1.00000   0.02200
O4   0.04510   0.09360   0.00000   1.00000   0.02100
O5   0.17250   0.22460   0.00000   1.00000   0.01500
Wat1   0.40900   0.09100   0.15400   0.49000   0.14000
Wat2   0.37500   0.07900   0.00000   0.27000   0.13000
Wat3   0.44500   0.05500   0.26400   0.41000   0.22000
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Ca 0.01960 0.01960 0.01140 -0.00700 0.00300 -0.00300
Be 0.01690 0.01690 0.02160 -0.00090 0.00000 0.00000
O6 0.01810 0.01818 0.01460 0.00440 -0.00270 0.00270
Al 0.01420 0.01090 0.00640 0.00000 0.00000 -0.00160
Si1 0.01400 0.01385 0.00750 -0.00290 0.00000 0.00000
Si2 0.01220 0.01010 0.00830 -0.00050 0.00000 0.00000
O1 0.01400 0.01400 0.01920 -0.00620 0.00000 0.00000
O2 0.02260 0.01400 0.01130 -0.00040 0.00340 -0.00190
O3 0.02880 0.02400 0.01330 -0.01260 0.00770 -0.00220
O4 0.01900 0.02330 0.02010 0.00430 0.00000 0.00000
O5 0.01690 0.01490 0.01430 -0.00340 0.00000 0.00000

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
12.990 Å	(100)
3.411 Å	(68)
9.230 Å	(49)
3.154 Å	(43)
6.150 Å	(42)
3.605 Å	(41)
3.198 Å	(34)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Near-surface Processes
22 : Hydration and low-𝑇 subsurface aqueous alteration (see also #23)

Type Occurrence of RoggianiteHide

Type Locality:

ⓘ Alpe Rosso, Orcesco, Druogno, Verbano-Cusio-Ossola Province, Piedmont, Italy

Place of Conservation of Type Material:

University of Modena, Modena, Italy; National School of Mines, Paris, France; National Museum of Natural History, Washington, D.C., USA, 122280.

Associated Minerals at Type Locality:

Thomsonite Subgroup

Reference:

Passaglia E. (1969) Roggianite, a new silicate mineral. Clay Minerals: 8: 107-111.

Synonyms of RoggianiteHide

Ginzburgite

Ginzburgite (of Voloshin et al.)

Other Language Names for RoggianiteHide

German:Roggianit

Russian:Роджианит

Spanish:Roggianita

Relationship of Roggianite to other SpeciesHide

Member of:

Zeolite Group

Other Members of this group:

Alflarsenite	NaCa₂Be₃Si₄O₁₃(OH) · 2H₂O	Mon. 2 : P2₁
Amicite	K₂Na₂Al₄Si₄O₁₆ · 5H₂O	Mon. 2
Ammonioleucite	(NH₄)(AlSi₂O₆)	Tet. 4/m : I4₁/a
Analcime	Na(AlSi₂O₆) · H₂O	Tric. 1 : P1
Bellbergite	(K,Ba,Sr)₂Sr₂Ca₂(Ca,Na)₄[Al₃Si₃O₁₂]₆ · 30H₂O	Hex.
Bikitaite	LiAlSi₂O₆ · H₂O	Tric. 1 : P1
Boggsite	Ca₈Na₃(Si,Al)₉₆O₁₉₂ · 70H₂O	Orth. mmm (2/m 2/m 2/m) : Imma
Brewsterite Subgroup	Zeolite Group.
Chabazite-Levyne Subgroup	M[Al₂Si₄O₁₂] · 6H₂O
Chiavennite	CaMnBe₂Si₅O₁₃(OH)₂ · 2H₂O	Mon. 2/m : P2₁/b
Clinoptilolite Subgroup	M_3-6(Si₃₀Al₆)O₇₂ · 20H₂O
Cowlesite	CaAl₂Si₃O₁₀ · 6H₂O	Orth. mmm (2/m 2/m 2/m)
Dachiardite Subgroup	Zeolite Group.
Direnzoite	NaK₆MgCa₂(Al₁₃Si₄₇O₁₂₀) · 36H₂O	Orth. mmm (2/m 2/m 2/m) : Pmmn
Edingtonite	Ba[Al₂Si₃O₁₀] · 4H₂O	Orth. 2 2 2 : P2₁ 2₁ 2₁
Epistilbite	CaAl₂Si₆O₁₆ · 5H₂O	Mon.
Erionite Subgroup	M₂[Al₄Si₁₄O₃₆] · 15H₂O
Faujasite Subgroup	M_3.5[Al₇Si₁₇O₄₈] · 32H₂O
Ferrierite Subgroup	Zeolite Group.
Ferrochiavennite	Ca_1-2Fe[(Si,Al,Be)₅Be₂O₁₃(OH)₂] · 2H₂O	Mon. 2/m : P2₁/b
Flörkeite	(K₃Ca₂Na)[Al₈Si₈O₃₂] · 12H₂O	Tric. 1 : P1
Garronite Subgroup
Gaultite	Na₄Zn₂Si₇O₁₈ · 5H₂O	Orth. mm2 : Fdd2
Gismondine Subgroup	Zeolite Group.
Gmelinite Subgroup	In 1997, gmelinite was split into Gmelinite-Ca, Gmelinite-Na and Gmelinite-K.
Gobbinsite	Na₅(Si₁₁Al₅)O₃₂ · 11H₂O	Orth. mmm (2/m 2/m 2/m) : Pnma
Goosecreekite	Ca[Al₂Si₆O₁₆] · 5H₂O	Mon. 2 : P2₁
Gottardiite	Na₃Mg₃Ca₅Al₁₉Si₁₁₇O₂₇₂ · 93H₂O	Orth. mmm (2/m 2/m 2/m) : Cmca
Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
Hsianghualite	Ca₃Li₂(Be₃Si₃O₁₂)F₂	Iso. 4 3 2 : I4₁ 3 2
Kirchhoffite	Cs(BSi₂O₆)	Tet. 4/mmm (4/m 2/m 2/m) : I4₁/acd
Laumontite	CaAl₂Si₄O₁₂ · 4H₂O	Mon. 2/m : B2/m
Loomisite	Ba[Be₂P₂O₈] · H₂O	Mon. m
Lovdarite	K₂Na₆Be₄Si₁₄O₃₆ · 9H₂O	Orth. mm2
Maricopaite	Pb₇Ca₂(Si,Al)₄₈O₁₀₀ · 32H₂O	Orth.
Martinandresite	Ba₂(Al₄Si₁₂O₃₂) · 10H₂O	Orth. mmm (2/m 2/m 2/m) : Pmmn
Mazzite Subgroup	Zeolite Group.
Merlinoite	(K,Na)₅(Ca,Ba)₂Al₉Si₂₃O₆₄ · 23H₂O	Orth. mmm (2/m 2/m 2/m) : Immm
Montesommaite	(K,Na)₉Al₉Si₂₃O₆₄ · 10H₂O	Orth. mm2 : Fdd2
Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O	Orth.
Mutinaite	Na₃Ca₄Si₈₅Al₁₁O₁₉₂ · 60H₂O	Orth. mmm (2/m 2/m 2/m) : Pnma
Nabesite	Na₂BeSi₄O₁₀ · 4H₂O	Orth. 2 2 2 : P2₁ 2₁ 2₁
Natrolite Subgroup	A subgroup of the Zeolite Group.
Offretite	KCaMg(Si₁₃Al₅)O₃₆ · 15H₂O	Hex. 6 m2 : P6m2
Pahasapaite	Li₈(Ca,Li,K)_10.5Be₂₄(PO₄)₂₄ · 38H₂O	Iso. 2 3 : I2 3
Parthéite	Ca₂(Si₄Al₄) O₁₅ (OH)₂ · 4H₂O	Mon. 2/m : B2/b
Paulingite Subgroup	Paulingite was originally described in 1960.
Perlialite	K₉Na(Ca,Sr)[Al₂Si₄O₁₂]₆ · 15H₂O	Hex. 6/mmm (6/m 2/m 2/m) : P6/mmm
Phillipsite Subgroup	Zeolite Group.
Pollucite	(Cs,Na)₂(Al₂Si₄O₁₂) · 2H₂O	Iso. m3m (4/m 3 2/m) : Ia3d
Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
Terranovaite	(Na,Ca)₈(Si₆₈Al₁₂)O₁₆₀ · 29H₂O	Orth.
Thomsonite Subgroup	The large majority of "thomsonite" is thomsonite-Ca.
Tschernichite	(Ca,Na₂)[Al₂Si₄O₁₂] · 4-8H₂O	Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm
Tschörtnerite	Ca₄(Ca,Sr,K,Ba)₃Cu₃[Al₃Si₃O₁₂]₄(OH)₈ · nH₂O	Iso. m3m (4/m 3 2/m) : Fm3m
UM1996-38-SiO:AlCaHNa	Na-Ca-Al-Si-O-H
UM1999-33-SiO:AlHKNa	K₇Na₅Al₁₂Si₂₀O₆₄ · 24H₂O
UM2002-40-SiO:AlCaHKMgNa	(Mg,Ca,Na,K)_7.5(Al_12.8Si_51.2)O₁₂₈ · 65H₂O	Tet. 4 2 2 : P4₁ 2 2
Unnamed (Ca analogue of Merlinoite)	(Ca,K,Na)₅(Ca,Ba)₂Al₉Si₂₃O₆₄ · 23H₂O ?
Wairakite	Ca(Al₂Si₄O₁₂) · 2H₂O	Mon. 2/m : B2/m
Weinebeneite	CaBe₃(PO₄)₂(OH)₂ · 4H₂O	Mon. m : Bb
Wenkite	(Ba,K)₄(Ca,Na)₆[(Si,Al)₂₀O₃₉(OH)₂](SO₄)₃ · 0.5H₂O	Hex. 6 m2 : P6₂m
Willhendersonite	KCa[Al₃Si₃O₁₂] · 5H₂O	Tric. 1 : P1
Yugawaralite	CaAl₂Si₆O₁₆ · 4H₂O	Mon. m : Pb

Common AssociatesHide

Associated Minerals Based on Photo Data:

4 photos of Roggianite associated with Bavenite	Ca₄Be₂Al₂Si₉O₂₆(OH)₂
4 photos of Roggianite associated with Beryl	Be₃Al₂(Si₆O₁₈)
3 photos of Roggianite associated with Albite	Na(AlSi₃O₈)
1 photo of Roggianite associated with Hydroxylapatite	Ca₅(PO₄)₃(OH)

Related Minerals - Strunz-mindat Grouping Hide

9.GB.05	Ammonioleucite	(NH₄)(AlSi₂O₆)	Tet. 4/m : I4₁/a
9.GB.05	Analcime	Na(AlSi₂O₆) · H₂O	Tric. 1 : P1
9.GB.05	Hsianghualite	Ca₃Li₂(Be₃Si₃O₁₂)F₂	Iso. 4 3 2 : I4₁ 3 2
9.GB.05	Lithosite	K₆Al₄Si₈O₂₅ · 2H₂O	Mon.
9.GB.05	Leucite	K(AlSi₂O₆)	Tet. 4/m : I4₁/a
9.GB.05	Pollucite	(Cs,Na)₂(Al₂Si₄O₁₂) · 2H₂O	Iso. m3m (4/m 3 2/m) : Ia3d
9.GB.05	Wairakite	Ca(Al₂Si₄O₁₂) · 2H₂O	Mon. 2/m : B2/m
9.GB.05 va	Germanate-analcime	NaAlGe₂O₆ · H₂O
9.GB.05 va	Germanate-leucite	KAlGe₂O₆
9.GB.05	Kirchhoffite	Cs(BSi₂O₆)	Tet. 4/mmm (4/m 2/m 2/m) : I4₁/acd
9.GB.05	Fabrièsite	Na₃Al₃Si₃O₁₂ · 2H₂O	Orth. mm2 : Pmm2
9.GB.10	Laumontite	CaAl₂Si₄O₁₂ · 4H₂O	Mon. 2/m : B2/m
9.GB.15	Yugawaralite	CaAl₂Si₆O₁₆ · 4H₂O	Mon. m : Pb
9.GB.25	Goosecreekite	Ca[Al₂Si₆O₁₆] · 5H₂O	Mon. 2 : P2₁
9.GB.30	Montesommaite	(K,Na)₉Al₉Si₂₃O₆₄ · 10H₂O	Orth. mm2 : Fdd2
9.GB.35	Parthéite	Ca₂(Si₄Al₄) O₁₅ (OH)₂ · 4H₂O	Mon. 2/m : B2/b

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 RoggianiteHide

mindat.org URL:

https://www.mindat.org/min-3438.html
Please feel free to link to this page.

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External Links:

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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 RoggianiteHide

Reference List:

L’Illustrazione Ossolana: 12: 97-100.

Passaglia, E. (1969) Roggianite, a new silicate mineral. Clay Minerals, 8 (1) 107-111 doi:10.1180/claymin.1969.008.1.11

Gard, J. A. (1969) An electron microscope and diffraction study of roggianite. Clay Minerals, 8 (1) 112-113 doi:10.1180/claymin.1969.008.1.12

Passaglia, E. (1969) Roggianite, a new silicate mineral. Clay Minerals, 8 (1) 107-111 doi:10.1180/claymin.1969.008.1.11

Gard, J.A. (1970) Studio per microscopia elettronica e per difrattometria della roggianite. Ceramica Informazione: 45.

Laghi, G.F. (1970) Le rocce che accompagnano la pegmatite a roggianite della Val Vigezzo (Novara).

Boscardin, M. (1972) Roggianite un nuovo minerale. Notiziario del Gruppo Mineralogico Lombardo: 1972: 7.

Vezzalini, G., Mattioli, V. (1979) Secondo ritrovamento della roggianite. Periodico di Mineralogia: 48: 15-20.

Galli, E. (1980) The crystal structure of roggianite, a zeolite-like silicate. Proceedings of the 5th International Conference Zeolites, Heyden, London: 205-213.

Passaglia, E. (1980) Nuovi silicati descritti dai ricercatori dell'Istituto di Mineralogia dell'Università di Modena: roggianite. Rivista Mineralogica Italiana: 1980: 16-19.

Galli, E. (1983) The crystal structure of roggianite, a zeolite-like silicate. Mineralnotes: 1983: 1-5.

Voloshin A.V., Pakhomovskii Ya.A., Rogachev D.L., Tyusheva F.N., and Shishkin N.M. (1986) Ginzburgite - the new calcium-beryllium silicate from desilicified pegmatites. Mineralogicheskii Zhurnal, 8(4), 85-90 (in Russian). [as ginzburgite]

Mattioli, V. (1987) Notizie sulla roggianite. Rivista Mineralogica Italiana: 1987: 93-95.

Passaglia, E., Vezzalini, Giovanna (1988) Roggianite: revised chemical formula and zeolitic properties. Mineralogical Magazine, 52 (365) 201-206 doi:10.1180/minmag.1988.052.365.06

Giuseppetti, G., Mazzi, F., Tadini, C., Galli, E. (1991) The revised crystal structure of roggianite: Ca₂[Be(OH)₂Al₂Si₄O₁₃]<2.5H₂O. Neues Jahrbuch für Mineralogie - Monatshefte, 1991. 307-314

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

Localities for RoggianiteHide

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

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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.


Canada
Newfoundland and Labrador ⓘ Newfoundland	Personal correspondance with Giles ...
Great Gull Lake ⓘ Great Gull Scheelite prospects	correspondance with Giles Peatfied (see description)

Italy (TL)
Piedmont Verbano-Cusio-Ossola Province Druogno Orcesco ⓘ Alpe Rosso (TL)	Mattioli V. (1987)
Trontano Pizzo Marcio ⓘ Pizzo Marcio North dyke	Mattioli (1979 a) +10 other references
ⓘ Pizzo Marcio South-East dyke	Appiani et al. (1995) +2 other references

Russia
Sverdlovsk Oblast Malyshevo Malyshevskoe deposit ⓘ Malyshevskaya pit	Voloshin A.V. et al. (1986)
ⓘ Ural Economic Region	Clark (1993)

Roggianite

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