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Pectolite

A valid IMA mineral species - grandfathered
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About PectoliteHide

Formula:
NaCa2Si3O8(OH)
Colour:
Colourless, white, pale pink, greenish, pale blue
Lustre:
Sub-Vitreous, Silky
Hardness:
4½ - 5
Specific Gravity:
2.84 - 2.9
Crystal System:
Triclinic
Name:
Named in 1828 by Franz von Kobell from the Greek πηκτός (English: pektos) for "held tightly together", in allusion to its resistance to pulverization.
Wollastonite Group.
Pectolite-Serandite Series. The calcium analogue of Sérandite.
Constitutes serandite-schizolite-pectolite series.




Unique IdentifiersHide

Mindat ID:
3141
Long-form identifier:
mindat:1:1:3141:3
GUID
(UUID V4):
4717fbcb-4a4b-42ed-b52d-ed7ad68bbba4

IMA Classification of PectoliteHide

Approved, 'Grandfathered' (first described prior to 1959)

Classification of PectoliteHide

9.DG.05

9 : SILICATES (Germanates)
D : Inosilicates
G : Inosilicates with 3-periodic single and multiple chains
65.2.1.4a

65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
2 : Single-Width Unbranched Chains, W=1 with chains P=3
14.6.2

14 : Silicates not Containing Aluminum
6 : Silicates of Ca with alkali or Mg or both

Mineral SymbolsHide

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

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

SymbolSourceReference
PctIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
PctKretz (1983)Kretz, R. (1983) Symbols of rock-forming minerals. American Mineralogist, 68, 277–279.
PctSiivolam & Schmid (2007)Siivolam, J. and Schmid, R. (2007) Recommendations by the IUGS Subcommission on the Systematics of Metamorphic Rocks: List of mineral abbreviations. Web-version 01.02.07. IUGS Commission on the Systematics in Petrology. download
PctWhitney & Evans (2010)Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371
PctThe Canadian Mineralogist (2019)The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Pronunciation of PectoliteHide

Pronunciation:
PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Physical Properties of PectoliteHide

Sub-Vitreous, Silky
Transparency:
Transparent, Translucent
Colour:
Colourless, white, pale pink, greenish, pale blue
Streak:
White
Hardness:
4½ - 5 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
on {100} and {001}
Fracture:
Irregular/Uneven
Comment:
Tough when compact.
Density:
2.84 - 2.9 g/cm3 (Measured)    2.87 g/cm3 (Calculated)

Optical Data of PectoliteHide

Type:
Biaxial (+)
RI values:
nα = 1.594 - 1.610 nβ = 1.603 - 1.614 nγ = 1.631 - 1.642
2V:
Measured: 50° to 63°, Calculated: 42° to 60°
Max Birefringence:
δ = 0.037
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v weak to very strong
Optical Extinction:
X ∧ c = 10°-19°; Y ∧ a = 10°-16°; Z ∧ b = 2°.

Chemistry of PectoliteHide

Mindat Formula:
NaCa2Si3O8(OH)
Common Impurities:
K,Fe,Mg,Al,H2O

Chemical AnalysisHide

Oxide wt%:
 124
SiO254.21 %53.87 %53.86 %
Mn2O3*0.06 % % %
MnO*1.04 %1.51 % %
CaO32.20 %31.93 %32.81 %
SrO0.22 %0.16 %0.01 %
Na2O9.03 %8.76 %8.64 %
Li2O (est. stoichiometry0.22 %0.28 % %
H2O (by stoichiometry)2.70 %2.69 %2.67 %
P2O50.02 %0.03 %0.03 %
ZrO20.04 %0.01 % %
Fe2O3*0.01 % % %
NiO0.01 % % %
MgO0.02 %0.03 %0.02 %
K2O0.01 %0.01 %0.08 %
Cr2O3 %0.01 % %
FeO* %0.03 %0.31 %
SO3 % %0.10 %
Al2O3 % %0.01 %
Ga2O3 % %0.01 %
V2O3 % %0.02 %
MnO % %0.80 %
PbO % %0.01 %
Total:99.79 %99.32 %99.38 %
Empirical formulas:
Sample IDEmpirical Formula
1(Na0.94Li~0.05?Sr0.01)(Ca1.91Mn2+0.05Na0.03)[Si3.00O8(OH)]
2(Na0.93Li~0.06?Sr0.01)(Ca1.91Mn2+0.07Na0.02)[Si3.00O8(OH)]
4(Na0.94Ca0.03K0.01)(Ca1.94Mn2+0.04Fe2+0.01)[Si3.02O8(OH)]
Sample references:
IDLocalityReferenceNotes
1N'Chwaning III Mine, N'Chwaning Mines, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africaweakly zoned pectolite, analysis of rim displaying bright yellow cathodoluminescence. H2O calculated from stoichiometry. Estimated minor Li2O added to improve stoichiometry, but should be verified by ICP-MS or SIMS. *Fe3+/∑Fe and Mn3+/∑Mn calculated by charge balance.
2  "  "weakly zoned pectolite, analysis of core displaying pale yellow cathodoluminescence. H2O calculated from stoichiometry. Estimated minor Li2O added to improve stoichiometry, but should be verified by ICP-MS or SIMS. *Fe3+/∑Fe and Mn3+/∑Mn calculated by charge balance.
4North Wilson pit, Union Carbide Mine, Wilson Springs, Garland County, Arkansas, USAobserved as rims around some wollastonite grains; note that pectolite was not observed visually in the hand sample. Normalized to ∑(cations) = 6. *Fe3+/∑Fe calculated by charge balance; H2O calculated by stoichiometry.

Crystallography of PectoliteHide

Polytype:
Formula:
Crystal System:
Class (H-M)
Space Group:
Space Group Setting:
Cell Parameters:
Ratio:
Unit Cell Volume (calc):
Z:
Pectolite-1APectolite-M2abc
 NaCa2[HSi3O9]
Triclinic  
1 - Pinacoidal 
P1 
  
a = 7.980(1) Å, b = 7.023(1) Å, c = 7.018(1) Å
α = 90.54(1)°, β = 95.14(1)°, γ = 102.55(1)°

a:b:c = 1.136 : 1 : 0.999 
V 382.20 ų
(Calculated from Unit Cell)
 
  

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0010648PectolitePrewitt C T (1967) Refinement of the structure of pectolite, Ca2NaHSi3O9 Zeitschrift fur Kristallographie 125 298-3161967Erie railroad cut, Bergen Hill, New Jersey, USA0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.
Powder Diffraction Data:
d-spacingIntensity
2.921 Å(100)
3.10 Å(80)
3.90 Å(60)
3.33 Å(60b)
3.28 Å(60b)
2.739 Å(60)
2.600 Å(60)
Comments:
Bergen Hill, New Jersey, USA. Data from Hildebrand (1953).

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 3a: Earth’s earliest Hadean crust>4.50
7 : Ultramafic igneous rocks
10 : Basalt-hosted zeolite minerals
Stage 3b: Earth’s earliest hydrosphere>4.45
13 : Hadean serpentinization
Near-surface Processes
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)
High-𝑇 alteration and/or metamorphism
31 : Thermally altered carbonate, phosphate, and iron formations
Stage 4b: Highly evolved igneous rocks>3.0
35 : Ultra-alkali and agpaitic igneous rocks
Stage 5: Initiation of plate tectonics<3.5-2.5
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)
Geological Setting:
Primary mineral in nepheline syenites. Hydrothermal mineral in cavities in basalts and diabases. In serpentinites and peridotites.

Type Occurrence of PectoliteHide

Synonyms of PectoliteHide

Other Language Names for PectoliteHide

Varieties of PectoliteHide

LarimarA trade name for a bluish massive pectolite found in the Dominican Republic and exploited as a gem material.

Originally described from Filipinas Larimar Mine, Los Checheses, Sierra de Baoruco, Barahona Province, Dominican Republic.
Manganese-bearing PectoliteA manganese-bearing variety of pectolite.

Relationship of Pectolite to other SpeciesHide

Other Members of this group:
Barrydawsonite-(Y)Na1.5Y0.5CaSi3O8(OH)Mon. 2/m : P21/b
BustamiteCaMn2+(Si2O6)Tric. 1 : P1
CascanditeCaScSi3O8(OH)Tric. 1
DalnegorskiteCa5Mn(Si3O9)2Tric. 1 : P1
FerrobustamiteCaFe2+(Si2O6)Tric. 1
MendigiteMn2Mn2MnCa(Si3O9)2Tric. 1 : P1
MurakamiiteLiCa2Si3O8(OH)Tric. 1 : P1
SchizoliteNaCaMnSi3O8(OH)Tric. 1 : P1
SeranditeNaMn2+2Si3O8(OH)Tric. 1 : P1
TanohataiteLiMn2Si3O8(OH)Tric. 1 : P1
VistepiteSnMn4B2Si4O16(OH)2Tric. 1 : P1
WollastoniteCa3(Si3O9)Tric. 1 : P1
Forms a series with:

Common AssociatesHide

Associated Minerals Based on Photo Data:
142 photos of Pectolite associated with PrehniteCa2Al2Si3O10(OH)2
112 photos of Pectolite associated with CalciteCaCO3
76 photos of Pectolite associated with Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
62 photos of Pectolite associated with Apophyllite GroupAB4[Si8O22]X · 8H2O
59 photos of Pectolite associated with GrossularCa3Al2(SiO4)3
54 photos of Pectolite associated with NatroliteNa2Al2Si3O10 · 2H2O
52 photos of Pectolite associated with DatoliteCaB(SiO4)(OH)
44 photos of Pectolite associated with AegirineNaFe3+Si2O6
39 photos of Pectolite associated with PyriteFeS2
34 photos of Pectolite associated with SugiliteKNa2Fe3+2Li3[Si12O30]

Related Minerals - Strunz-mindat GroupingHide

9.DG.CalcinaksiteKNaCa(Si4O10) · H2OTric. 1 : P1
9.DG.Barrydawsonite-(Y)Na1.5Y0.5CaSi3O8(OH)Mon. 2/m : P21/b
9.DG.ParatobermoriteCa4(Al0.5Si0.5)2Si4O16(OH)(H2O)2 · (Ca · 3H2O)Mon. 2/m
9.DG.EnricofrancoiteKNaCaSi4O10Tric. 1 : P1
9.DG.AlvesiteNaKZrSi6O15 · 2H2OOrth. mmm (2/m 2/m 2/m)
9.DG.02SteedeiteNaMn2[Si3BO9](OH)2Tric. 1 : P1
9.DG.02NolzeiteNaMn2[Si3BO9](OH)2 · 2H2OTric. 1 : P1
9.DG.05BustamiteCaMn2+(Si2O6)Tric. 1 : P1
9.DG.05FerrobustamiteCaFe2+(Si2O6)Tric. 1
9.DG.05SeranditeNaMn2+2Si3O8(OH)Tric. 1 : P1
9.DG.05WollastoniteCa3(Si3O9)Tric. 1 : P1
9.DG.05Wollastonite-1ACaSiO3Tric. 1 : P1
9.DG.05TanohataiteLiMn2Si3O8(OH)Tric. 1 : P1
9.DG.05SchizoliteNaCaMnSi3O8(OH)Tric. 1 : P1
9.DG.05MurakamiiteLiCa2Si3O8(OH)Tric. 1 : P1
9.DG.05DalnegorskiteCa5Mn(Si3O9)2Tric. 1 : P1
9.DG.07CascanditeCaScSi3O8(OH)Tric. 1
9.DG.08Plombièrite[Ca4Si6O16(OH)2 · 2H2O] · (Ca · 5H2O)Orth.
9.DG.10Clinotobermorite[Ca4Si6O17 · 2H2O] · (Ca · 3H2O)Mon.
9.DG.10RiversideiteCa5(HSi3O9)2 · 2H2OOrth.
9.DG.10TobermoriteCa4Si6O17(H2O)2 · (Ca · 3H2O)Mon. 2 : P21
9.DG.12JusiteNa2Ca15Al4Si16O54 · 17H2O
9.DG.12KenotobermoriteCa4Si6O15(OH)2(H2O)2 · 3H2OMon.
9.DG.15FoshagiteCa4(Si3O9)(OH)2Tric. 1 : P1
9.DG.20JenniteCa9(Si3O9)2(OH)8 · 8H2OTric. 1 : P1
9.DG.20KameneviteK2TiSi3O9 · H2OOrth. 2 2 2 : P21 21 21
9.DG.25ParaumbiteK3Zr2H(Si3O9)2 · nH2OOrth. mm2
9.DG.25UmbiteK2(Zr,Ti)Si3O9 · H2OOrth. 2 2 2 : P21 21 21
9.DG.30SørenseniteNa4SnBe2Si6O16(OH)4Mon. 2/m : B2/b
9.DG.32Escheite Ca2NaMnTi5[Si12O34]O2(OH)3 · 12H2OOrth. mm2 : Ama2
9.DG.35XonotliteCa6(Si6O17)(OH)2Mon. 2/m : B2/m
9.DG.40HillebranditeCa2(SiO3)(OH)2Orth. mmm (2/m 2/m 2/m) : Cmcm
9.DG.45ZoriteNa8(Ti,Nb)5(Si6O17)2(OH,O)5 · 14H2OOrth.
9.DG.45ChivruaiiteCa4(Ti,Nb)5(Si6O17)2(OH,O)5 · 13-14H2OOrth. mmm (2/m 2/m 2/m) : Cmmm
9.DG.50Haineaultite(Na,Ca)5Ca(Ti,Nb)5(Si6O17)2(OH,F)8 · 5H2OOrth. 2 2 2 : C2 2 2
9.DG.55EpididymiteNa2Be2Si6O15 · H2OOrth. mmm (2/m 2/m 2/m) : Pnma
9.DG.60EudidymiteNa2Be2Si6O15 · H2OMon. 2/m : B2/b
9.DG.65ElpiditeNa2ZrSi6O15 · 3H2OOrth.
9.DG.65PatyniteNaKCa4[Si9O23]Tric. 1 : P1
9.DG.67WhelaniteCu2+2Ca6[Si6O17(OH)](CO3)(OH)3 · 2H2OOrth. mm2 : Pnn2
9.DG.70Fenaksite(K,Na)4(Fe,Mn)2(Si4O10)2(OH,F)Tric. 1 : P1
9.DG.70LitidioniteCuNaKSi4O10Tric. 1 : P1
9.DG.70ManaksiteKNaMnSi4O10Tric. 1 : P1
9.DG.70YusupoviteNa2Zr(Si6O15) · 2.5H2OMon. 2/m : B2/m
9.DG.75TinaksiteK2Na(Ca,Mn2+)2TiO[Si7O18(OH)]Tric.
9.DG.75TokkoiteK2Ca4[Si7O18(OH)](OH,F)Tric.
9.DG.75SenkevichiteCsKNaCa2TiO[Si7O18](OH)Tric. 1 : P1
9.DG.80CanasiteK3Na3Ca5Si12O30(OH)4Mon. m : Bm
9.DG.80FluorcanasiteK3Na3Ca5Si12O30F4 · H2OMon. m : Bm
9.DG.85MiseriteK1.5-x(Ca,Y,REE)5(Si6O15)(Si2O7)(OH,F)2 · yH2OTric.
9.DG.90FrankameniteK3Na3Ca5(Si12O30)(F,OH)4 · H2OTric. 1 : P1
9.DG.92Charoite(K,Sr)15-16(Ca,Na)32[Si6O11(O,OH)6]2[Si12O18(O,OH)12]2[Si17O25(O,OH)18]2(OH,F)4 · ~3H2OMon. 2/m : P21/m
9.DG.95YuksporiteK4(Ca,Na)14(Sr,Ba)2(◻,Mn,Fe)(Ti,Nb)4(O,OH)4(Si6O17)2(Si2O7)3(H2O,OH)3Mon. 2/m : P21/m
9.DG.97Eveslogite(Na,K,Ca,Sr,Ba)48 [(Ti,Nb,Mn,Fe2+)12Si48O144(OH)12](F,OH,Cl)14Mon. 2/m : P2/m

Other InformationHide

Notes:
May be triboluminescent.
Health Risks:
The white needles of pectolite are sharp and stiff and easily penetrate the skin. Once embedded they are invisible and brittle and difficult to remove, often very painful. Handle with caution at all times. Do not rub your hands after handling. Rinse hands in a strong stream of water before handling anything else, especially food.

Pectolite in petrologyHide

An essential component of rock names highlighted in red, an accessory component in rock names highlighted in green.

Internet Links for PectoliteHide

References for PectoliteHide

Reference List:

Localities for PectoliteHide

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.
Argentina
 
  • Neuquén Province
    • Los Lagos Department
Australia
 
  • New South Wales
    • Cumberland County
      • Prospect
    • Forbes Co.
      • Grenfell
    • Mootwingee Co.
  • Queensland
    • Somerset Region
  • Tasmania
    • Dorset municipality
      • Waterhouse district
    • Huon Valley municipality
      • Huon-Channel region
        • Weld river district
Brazil
 
  • Minas Gerais
    • Poços de Caldas
  • Santa Catarina
  • São Paulo
Canada
 
  • British Columbia
    • Golden Mining Division
  • New Brunswick
    • Charlotte Co.
      • Saint Patrick Parish
  • Newfoundland and Labrador
    • Labrador
      • North Red Wine Pluton
  • Northwest Territories
    • Blachford Lake alkaline complex
    • North Slave Region
      • Blachford Lake alkaline complex
        • Thor Lake syenite complex
  • Nova Scotia
    • Cape Breton Co.
      • Scotch Lake
  • Nunavut
    • Coppermine River area
    • Qikiqtaaluk Region
      • Baffin Island
  • Ontario
    • Thunder Bay District
      • Killala Lake Area
      • MacGregor Township
  • Québec
    • Abitibi-Témiscamingue
      • Témiscamingue RCM
        • Les Lacs-du-Témiscamingue
    • Chaudière-Appalaches
      • Les Appalaches RCM
        • Saint-Joseph-de-Coleraine
        • Thetford Mines
          • Black Lake
          • Pontbriand
    • Estrie
      • Les Sources RCM
        • Val-des-Sources
    • Gaspésie-Îles-de-la-Madeleine
      • La Haute-Gaspésie RCM
    • Laurentides
      • Argenteuil RCM
        • Grenville-sur-la-Rouge
      • Deux-Montagnes RCM
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
      • Lajemmerais RCM
        • Varennes & St-Amable
          • Saint-Amable sill
China
 
  • Liaoning
    • Dandong
      • Kuandian County
        • Saima complex
  • Sichuan
    • Liangshan Yi
      • Mianning County
  • Zhejiang
    • Hangzhou
      • Chun'an County
Czech Republic
 
  • Central Bohemian Region
    • Beroun District
      • Hlásná Třebaň
  • Liberec Region
    • Semily District
      • Košťálov
  • Moravian-Silesian Region
    • Karviná District
      • Karviná
  • South Moravian Region
    • Brno-Country District
  • Ústí nad Labem Region
    • Děčín District
  • Vysočina Region
    • Havlíčkův Brod District
      • Krucemburk
    • Žďár nad Sázavou District
      • Věžná
Dominican Republic
 
  • Barahona Province
    • La Ciénaga
    • Sierra de Baoruco
      • Los Checheses
DR Congo
 
  • North Kivu
    • Beni Territory
      • Bashu
Faroe Islands
 
  • Norðoyar Region
    • Borðoy
      • Depil
Finland
 
  • Lapland
    • Ranua
  • North Ostrobothnia
    • Kuusamo
  • South Karelia
    • Lappeenranta
France
 
  • Grand Est
    • Bas-Rhin
      • Molsheim
        • Saint-Nabor
    • Vosges
      • Saint-Dié-des-Vosges
        • Raon-l'Étape
  • Occitanie
    • Aude
      • Narbonne
        • Fitou
Germany
 
  • Baden-Württemberg
    • Freiburg Region
      • Breisgau-Hochschwarzwald
        • Bötzingen
        • Buchenbach
      • Ortenaukreis
        • Haslach im Kinzigtal
          • Haslach im Kinzigtal
  • Hesse
    • Giessen Region
      • Lahn-Dill-Kreis
        • Dillenburg
          • Oberscheld
      • Marburg-Biedenkopf
        • Bad Endbach
          • Hartenrod
        • Steffenberg
  • North Rhine-Westphalia
    • Arnsberg
      • Hochsauerlandkreis
        • Meschede
          • Remblinghausen
        • Winterberg
          • Hildfeld
          • Silbach
  • Rhineland-Palatinate
    • Donnersbergkreis
      • Nordpfälzer Land
        • Waldgrehweiler
    • Kaiserslautern
      • Otterbach-Otterberg
        • Niederkirchen
[Pectolite-M2abc]
    • Kusel
      • Lauterecken-Wolfstein
        • Jettenbach
        • Kreimbach-Kaulbach
  • Saxony
    • Sächsische Schweiz-Osterzgebirge
      • Sebnitz
Greece
 
  • Eastern Macedonia and Thrace
    • Rhodope
      • Maroneia-Sapes
Greenland
 
  • Avannaata
    • Nuussuaq Peninsula
  • Kujalleq
    • Igaliku Complex
        • Head of Kangerluarsuk
          • Lilleelv
        • Kvanefjeld deposit
      • Tunulliarfik Fjord
    • Illutalik Island
  • Sermersooq
    • Kangerlussuaq Fjord
      • Prinsen af Wales Bjerge
Hungary
 
  • Baranya County
    • Pécs District
      • Hosszúhetény
India
 
  • Andhra Pradesh
    • Rayalaseema Region
      • Anantapur District
        • Wajrakarur kimberlite field
          • Wajrakarur–Lattavaram cluster
  • Madhya Pradesh
    • Panna District
      • Panna
        • Panna Mines
  • Tamil Nadu
    • Vellore District
      • Tiruppattur
  • West Bengal
    • Purulia District
Ireland
 
  • Leinster
    • Louth County
      • Carlingford
Italy
 
  • Aosta Valley
    • Arvier
    • Montjovet
  • Lazio
    • Rieti Province
      • Rieti
        • Santa Rufina
  • Liguria
    • Genoa
      • Tiglieto
    • La Spezia Province
      • Borghetto di Vara
  • Lombardy
    • Sondrio Province
      • Lanzada
        • Franscia
  • Piedmont
    • Alessandria Province
      • Fraconalto
      • Voltaggio
    • Cuneo Province
  • Trentino-Alto Adige (Trentino-South Tyrol)
    • South Tyrol
      • Sarentino Valley (Sarn valley)
        • Pénnes Valley (Pensertal)
    • Trento Province (Trentino)
      • Ala
        • Pilcante
      • Brentonico
      • Campitello di Fassa
        • Duron Valley
      • Mori
      • Predazzo
        • Latemar Group
      • San Giovanni di Fassa
        • San Nicolò Valley
  • Tuscany
    • Pisa Province
      • Castelnuovo di Val di Cecina
  • Veneto
    • Belluno Province
      • Taibon Agordino
        • San Lucano Valley
    • Padova Province
      • Galzignano Terme
    • Verona Province
      • San Giovanni Ilarione
    • Vicenza Province
      • Altavilla Vicentina
      • Gambellara
        • S. Marco hill
      • San Vito di Leguzzano-Schio
      • San Vito di Leguzzano
      • Schio
        • Tretto
          • Val Munari
            • Contrade Maglio-Pornaro
Japan
 
  • Aichi Prefecture
    • Shinshiro city
  • Chiba Prefecture
    • Awa District
      • Tawara-mura
    • Kamogawa city
    • Minamiboso City
      • Tomiyama-machi
  • Ehime Prefecture
    • Ochi District
  • Hiroshima Prefecture
    • Shoubara City
      • Kushiro
  • Hokkaidō Prefecture
    • Kamikawa Subprefecture
      • Nakagawa (Teshio) District
    • Sorachi Subprefecture
      • Uryū District
  • Kochi Prefecture
    • Kochi City
      • Rendai
  • Mie Prefecture
    • Toba City
  • Miyazaki Prefecture
    • Nishiusuki District
      • Takachiho
  • Niigata Prefecture
      • Ōmi
  • Okayama Prefecture
    • Niimi City
Kenya
 
  • Trans-Nzoia County
    • Mount Elgon
Kyrgyzstan
 
  • Batken Region
    • Batken District
Lesotho
 
  • Mokhotlong District
Madagascar
 
  • Diana
    • Ambanja
      • Antsirabe
Mexico
 
  • Durango
    • Mapimí Municipality
      • Mapimí
Morocco
 
  • Dakhla-Oued Ed-Dahab Region
    • Aousserd Province
  • Drâa-Tafilalet Region
    • Midelt Province
      • Midelt Cercle
        • Aït Oufella Caïdat
          • Amersid
  • Marrakesh-Safi Region
    • Al Haouz Province
      • Amizmiz Cercle
        • Guedmioua Caïdat
          • Azgour (Azegour)
  • Rabat-Salé-Kénitra Region
    • Khémisset Province
      • Khémisset Cercle
        • Ait Mimoune Caïdat
          • El Hammam
      • Oulmès Cercle
Myanmar
 
  • Kachin State
    • Mohnyin District
      • Hpakant Township (Hpakan; Phakant; Phakan)
Namibia
 
  • Khomas Region
    • Windhoek Rural
      • Aris
New Zealand
 
  • Northland Region
    • Kaipara District
  • Southland Region
    • Southland District
      • Livingstone Mountains
  • Waikato Region
    • Waitomo District
      • Piopio
Norway
 
  • Agder
    • Risør
      • Søndeled
  • Møre og Romsdal
    • Ørsta
  • Oslo
    • Oslomarka
  • Troms og Finnmark
    • Hasvik
      • Sørøya
  • Vestfold og Telemark
    • Larvik
      • Brunlanes
      • Hedrum
        • Lågendalen
      • Tjølling
        • Håkestad
        • Stålaker
      • Tvedalen
    • Porsgrunn
      • Auenlandet
        • Sagåsen
      • Risøya
Berge, Svein A. (n.d.) Personal communication.John Brommeland collection/observation 1977
      • Slevolden
    • Sandefjord
      • Vesterøya
Pakistan
 
  • Balochistan Region
    • Killa Saifullah District
    • Pishin District
Poland
 
  • Lower Silesian Voivodeship
    • Wrocław County
      • Gmina Jordanów Śląski
  • Silesian Voivodeship
    • Bielsko County
      • Gmina Jasienica
    • Zawiercie County
      • Gmina Łazy
        • Rokitno Szlacheckie
Romania
 
  • Bihor County
    • Pietroasa
  • Harghita County
    • Joseni
Russia
 
  • Aldan Shield
    • Chara and Tokko Rivers Confluence
  • Arkhangelsk Oblast
    • Zimny Bereg District
      • Zimny Bereg kimberlite field
        • Zolotitsa occurrence
  • Buryatia
    • Severo-Baykalsky District
      • Dovyren Highlands
  • Chukotka Autonomous Okrug
    • Anadyrsky District
  • Irkutsk Oblast
  • Kemerovo Oblast
    • Synzas River
  • Khabarovsk Krai
    • Ayan-Maya district
    • Taikan Ridge
  • Krasnoyarsk Krai
    • Maimecha and Kotui Rivers Basin
      • Odikhincha massif
    • Taymyrskiy Autonomous Okrug
      • Taimyr Peninsula
        • Putoran Plateau
  • Murmansk Oblast
    • Khibiny Massif
        • Astrophyllite Stream
      • Koashva Mt
        • Rasvumchorr Mine
      • The Carbonatite Stock in the vicinity of Tul'ilukht Bay
    • Lovozersky District
      • Engporr Mountain
        • Second Eastern Stream
      • Seidozero Lake
        • Lepkhe-Nel'm Mt
    • Turii Cape
  • Republic of Karelia
  • Sverdlovsk Oblast
    • Asbest
        • Southern open pit
South Africa
 
  • Free State
    • Xhariep District Municipality
      • Kopanong Local Municipality
        • Jagersfontein
  • Limpopo
    • Mopani District Municipality
      • Ba-Phalaborwa Local Municipality
        • Phalaborwa
    • Sekhukhune District Municipality
      • Makhuduthamaga Local Municipality
  • North West
    • Bojanala Platinum District Municipality
      • Moses Kotane Local Municipality
    • Dr Ruth Segomotsi Mompati District Municipality
      • Lekwa-Teemane Local Municipality
  • Northern Cape
    • Frances Baard District Municipality
      • Sol Plaatje Local Municipality
        • Kimberley
          • KEM JV Mine (Kimberley Ekapa Mining Joint Venture mine; Kimberley Underground mine)
    • John Taolo Gaetsewe District Municipality
      • Joe Morolong Local Municipality
        • Hotazel
        • N'Chwaning Mines
    • ZF Mgcawu District Municipality
      • Tsantsabane Local Municipality
        • Postmasburg
Sweden
 
  • Dalarna County
    • Älvdalen
  • Jönköping County
    • Jönköping
      • Gränna
  • Östergötland County
    • Ödeshög
  • Värmland County
    • Filipstad
      • Långban Ore District
      • Persberg ore district
        • Pajsberg
  • Västernorrland County
    • Kramfors
    • Sundsvall
Tajikistan
 
  • Districts of Republican Subordination
Tanzania
 
  • Manyara Region
    • Simanjiro District
      • Lelatema Mountains
UK
 
  • England
    • Cornwall
      • St Keverne
        • Porthoustock
    • County Durham
      • Forest and Frith
      • Stanhope
        • Westgate
    • Cumbria
      • Allerdale
        • Embleton
      • Eden
        • Mungrisdale
        • Shap Rural
    • Northumberland
      • Chollerton
    • West Midlands Metropolitan County
      • Walsall
        • Bentley
  • Northern Ireland
    • Co. Antrim
      • Larne
  • Scotland
    • Aberdeenshire
      • Huntly
    • City of Edinburgh
    • Fife
      • Kirkcaldy
      • Raith
    • Highland
      • Eilean á Chèo
        • Isle of Skye
          • Minginish
            • Carbost
              • Talisker
          • Struan
    • North Ayrshire
      • Kilbirnie
    • North Lanarkshire
    • South Ayrshire
      • Girvan
      • Troon
  • Wales
    • Conwy
      • Penmaenmawr
    • Gwynedd
      • Pwllheli
    • Wrexham
      • Ceiriog Ucha
USA
 
  • Arizona
    • Navajo County
      • Navajo volcanic field
  • Arkansas
    • Garland County
      • Wilson Springs (Potash Sulfur Springs)
        • Union Carbide Mine
    • Hot Spring County
      • Little Rock
  • California
    • Colusa County
      • Coast Ranges
        • Stonyford
        • Sulphur Creek Mining District (Sulfur Creek Mining District; Wilbur Springs Mining District)
          • Wilbur Springs
    • Humboldt County
      • Coastal Range
    • Inyo County
      • Bishop Mining District (Tungsten Hills Mining District)
        • Scheelite
    • Lake County
      • East Mayacmas Mining District
        • Middletown
    • Los Angeles County
    • Mendocino County
      • Cloverdale area
        • Russian River
      • Coastal Range
        • Reeves Place
          • Leech Lake Mountain
    • San Benito County
      • Idria (New Idria)
      • Idria Peak
      • Picacho Peak
    • San Francisco County
      • San Francisco
    • Santa Barbara County
    • Sonoma County
      • West Mayacmas Mining District
    • Tehama County
      • Los Molinos
  • Connecticut
    • Fairfield County
      • Newtown
        • Hawleyville
    • Hartford County
      • Bloomfield
        • Tariffville Gorge
      • Farmington
      • New Britain
    • Litchfield County
      • Woodbury
        • Orenaug Hills
    • New Haven County
  • Kansas
  • Kentucky
    • Elliott County
  • Maine
    • York County
      • Cornish
  • Massachusetts
    • Hampden County
      • Hampden
    • Hampshire County
      • Amherst
  • Montana
    • Liberty County
      • Sweet Grass Hills
  • Nevada
    • Humboldt County
  • New Jersey
    • Bergen County
      • Edgewater
      • Fort Lee
    • Bergen County & Hudson County
    • Essex County
      • Cedar Grove
        • Cedar Grove
      • Livingston
        • Livingston
      • Millburn
        • Millburn
        • Short Hills
      • Montclair
        • Upper Montclair
    • Hudson County
      • Bergen Hill
      • Jersey City
        • Bergen Hill
      • North Bergen Township
        • North Bergen
      • Secaucus
    • Hunterdon County
      • West Amwell Township
    • Passaic County
      • Haledon
      • Little Falls Township
      • Paterson
      • Prospect Park
    • Somerset County
      • Bernards Township
      • Bernardsville
      • Bridgewater Township
      • Watchung
    • Sussex County
      • Franklin
    • Union County
      • Springfield Township
        • Springfield
  • New Mexico
    • Colfax County
      • Springer
        • Point of Rocks Mesa (Pecks Mesa)
    • Taos County
  • New York
    • Lewis County
      • Diana Township
    • Putnam County
      • Town of Southeast
    • Rockland County
        • Rockland Lake
      • Orangetown
      • Suffern
      • Town of Ramapo
    • Westchester County
  • Pennsylvania
    • Berks County
      • Birdsboro
        • Gibraltar
    • Lancaster County
      • Brecknock Township
        • Bowmansville
    • Philadelphia County
      • Philadelphia
        • Frankford
  • Virginia
    • Culpeper County
      • Mitchell
    • Fairfax County
      • Culpeper Basin
        • Centreville
    • Loudoun County
      • Conklin
    • Prince William County
      • Manassas
  • Washington
    • Skagit County
      • Cypress Island
    • Whatcom County
      • Mount Baker Mining District
        • Sumas Mountain
  • Wisconsin
    • Bayfield County
  • Wyoming
    • Park County
    • Teton County
      • Lower Geyser Basin
 
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