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Danburite

This page kindly sponsored by Alfredo Petrov
Big Photo

Toroku mine, Takachiho, Miyazaki Prefecture, Kyushu Region, Japan
© 2003 John H. Betts

Show Danburite Photos (335)



Formula:
CaB
 
2
Si
 
2
O
 
8
System:OrthorhombicColour:Pale yellow, ...
Lustre:Vitreous, GreasyHardness:7 - 7½
Name:For the type locality at Danbury, Connecticut, USA.


The calcium analogue of Maleevite and Pekovite.

Visit gemdat.org for gemological information about Danburite. Currently in public beta-test.

Classification of Danburite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:8/J.08-20
Nickel-Strunz 10th (pending) edition ID:9.FA.65

9 : SILICATES (Germanates)
F : Tektosilicates without zeolitic H2O
A : Tektosilicates without additional non-tetrahedral anions
Dana 8th edition ID:56.3.1.1

56 : SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
3 : Si2O7 Groups and O, OH, F, and H2O with[Si2O7] with borate groups
Hey's CIM Ref.:17.5.11

17 : Silicates Containing other Anions
5 : Borosilicates
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Type Occurrence of Danburite

Type Locality:Danbury, Fairfield Co., Connecticut, USA
Year of Discovery:1839

Occurrences of Danburite

Geological Setting:Granite and metamorphosed carbonates, evaporites.

Physical Properties of Danburite

Lustre:Vitreous, Greasy
Diaphaneity (Transparency):Transparent, Translucent
Colour:Pale yellow, yellowish-brown, colourless
Streak:White
Hardness (Mohs):7 - 7½
Tenacity:Brittle
Cleavage:Poor/Indistinct
Indistinct on {001}
Fracture:Irregular/Uneven, Sub-Conchoidal
Density (measured):2.93 - 3.02 g/cm3
Density (calculated):2.99 g/cm3

Crystallography of Danburite

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:a = 8.038(3) Å, b = 8.752(5) Å, c = 7.73Å
Ratio:a:b:c = 0.918 : 1 : 0.883
Unit Cell Volume:V 543.79 ų (Calculated from Unit Cell)
Z:4
Morphology:Prismatic crystals, disseminated masses.
Crystal Atlas:
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Danburite no.40 - Goldschmidt (1913-1926)

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Radiation - Copper Kα
Data Set:
Horizontal Axis: ° to ° Vertical Axis: % Source Data: Filtered Data:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Optical Data of Danburite

Type:Biaxial (+/-)
RI values: nα = 1.627 - 1.633 nβ = 1.630 - 1.636 nγ = 1.633 - 1.639
2V:Measured: 88° to 90°, Calculated: 88°
Maximum Birefringence:δ = 0.006

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r < v strong

Chemical Properties of Danburite

Formula:
CaB
 
2
Si
 
2
O
 
8
Essential elements:B, Ca, O, Si
All elements listed in formula:B, Ca, O, Si
Common Impurities:Fe,Mn,Al,Mg,Sr,Na

Relationship of Danburite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.FA.05Kaliophilite
KAlSiO
 
4
9.FA.05Kalsilite
KAlSiO
 
4
9.FA.05Nepheline
(Na,K)AlSiO
 
4
9.FA.05Panunzite
(K,Na)AlSiO
 
4
9.FA.05Trikalsilite
(K,Na)AlSiO
 
4
9.FA.05Yoshiokaite
(Ca,Na)[Al(Al,Si)O
 
4
]
9.FA.05Megakalsilite
KAlSiO
 
4
9.FA.10Malinkoite
NaBSiO
 
4
9.FA.15Virgilite
LiAlSi
 
2
O
 
6
9.FA.25Lisitsynite
KBSi
 
2
O
 
6
9.FA.30Adularia
KAlSi
 
3
O
 
8
9.FA.30Anorthoclase
(Na,K)AlSi
 
3
O
 
8
9.FA.30Buddingtonite
(NH
 
4
)AlSi
 
3
O
 
8
9.FA.30Celsian
BaAl
 
2
Si
 
2
O
 
8
9.FA.30Hyalophane
(K,Ba)[Al(Si,Al)Si
 
2
O
 
8
]
9.FA.30Microcline
KAlSi
 
3
O
 
8
9.FA.30Orthoclase
KAlSi
 
3
O
 
8
9.FA.30Sanidine
KAlSi
 
3
O
 
8
9.FA.30Rubicline
(Rb,K)AlSi
 
3
O
 
8
9.FA.30Monalbite
NaAlSi
 
3
O
 
8
9.FA.35Albite
NaAlSi
 
3
O
 
8
9.FA.35Andesine
(Na,Ca)[Al(Si,Al)Si
 
2
O
 
8
]
9.FA.35Anorthite
CaAl
 
2
Si
 
2
O
 
8
9.FA.35Bytownite
(Ca,Na)[Al(Al,Si)Si
 
2
O
 
8
]
9.FA.35Labradorite
(Ca,Na)[Al(Al,Si)Si
 
2
O
 
8
]
9.FA.35Oligoclase
(Na,Ca)[Al(Si,Al)Si
 
2
O
 
8
]
9.FA.35Reedmergnerite
Na[BSi
 
3
O
 
8
]
9.FA.40Paracelsian
BaAl
 
2
Si
 
2
O
 
8
9.FA.45Svyatoslavite
CaAl
 
2
Si
 
2
O
 
8
9.FA.45Kumdykolite
NaAlSi
 
3
O
 
8
9.FA.50Slawsonite
(Sr,Ca)Al
 
2
Si
 
2
O
 
8
9.FA.55Lisetite
CaNa
 
2
Al
 
4
Si
 
4
O
 
16
9.FA.60Banalsite
BaNa
 
2
[Al
 
2
Si
 
2
O
 
8
]
 
2
9.FA.60Stronalsite
SrNa
 
2
[Al
 
2
Si
 
2
O
 
8
]
 
2
9.FA.65Maleevite
BaB
 
2
Si
 
2
O
 
8
9.FA.65Pekovite
SrB
 
2
Si
 
2
O
 
8
9.FA.70Lingunite
(Na,Ca)AlSi
 
3
O
 
8
9.FA.75Kokchetavite
KAlSi
 
3
O
 
8
Related Minerals - Hey's Index Grouping:

- +
17.5.1Manandonite
LiAl
 
4
(BSi
 
3
O
 
10
)(OH)
 
6
17.5.2Reedmergnerite
Na[BSi
 
3
O
 
8
]
17.5.3Searlesite
Na(H
 
2
BSi
 
2
O
 
7
)
17.5.4Olenite
Na(Al
 
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
O
 
3
(OH)
17.5.5Elbaite
Na(Li
 
1.5
Al
 
1.5
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
17.5.6Kalborsite
K
 
6
Al
 
4
BSi
 
6
O
 
20
(OH)
 
4
Cl
17.5.7Boromuscovite
KAl
 
2
(BSi
 
3
O
 
10
)(OH)
 
2
17.5.8Poudretteite
KNa
 
2
B
 
3
Si
 
12
O
 
30
17.5.9Liddicoatite
Ca(Li
 
2
Al)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
17.5.10Datolite
Ca(HBSiO
 
5
)
17.5.12Howlite
Ca
 
2
B
 
5
SiO
 
9
(OH)
 
5
17.5.13Bakerite
Ca
 
4
(H
 
5
B
 
5
Si
 
3
O
 
20
)
17.5.14Oyelite
Ca
 
10
Si
 
8
B
 
2
O
 
29
 · 12.5H
 
2
O
17.5.15Kornerupine
Mg
 
3
Al
 
6
(Si,Al,B)
 
5
O
 
21
(OH)
17.5.16Harkerite
Ca
 
12
Mg
 
4
Al(BO
 
3
)
 
3
(SiO
 
4
)
 
4
(CO
 
3
)
 
5
 · H
 
2
O
17.5.17Serendibite
(Ca,Na)
 
2
(Mg,Fe
2+
 
)
 
3
(Al,Fe
3+
 
)
 
3
[O
 
2
|(Si,Al,B)
 
6
O
 
18
]
17.5.18Stillwellite-(Ce)
(Ce,La,Ca)BSiO
 
5
17.5.19Tadzhikite-(Ce)
(Ca,Ce)
 
4
(Ce,Y)
 
2
(Ti
4+
 
,Fe
3+
 
,Al)[B
 
4
Si
 
4
O
 
22
](OH)
 
2
17.5.20Melanocerite-(Ce)
(Ce,Ca)
 
5
(Si,B)
 
3
O
 
12
(OH,F) · nH
 
2
O
17.5.21Okanoganite-(Y)
(Na,Ca)
 
3
(Y,Ce)
 
12
Si
 
6
B
 
2
O
 
27
F
 
14
17.5.22Tritomite-(Ce)
(Ce,La,Y,Th)
 
5
(Si,B)
 
3
(O,OH,F)
 
13
17.5.23Tritomite-(Y)
(Y,Ca,La,Fe)
 
5
(Si,B,Al)
 
3
(O,OH,F)
 
13
17.5.24Cappelenite-(Y)
Ba(Y,Ce)
 
6
Si
 
3
B
 
6
O
 
24
F
 
2
17.5.25Dumortierite
(Al,Fe
3+
 
)
 
7
(SiO
 
4
)
 
3
(BO
 
3
)O
 
3
17.5.26Holtite
Al
 
6
(Al,Ta)(SiO
 
4
,SbO
 
4
,AsO
 
4
)
 
3
(BO
 
3
)O
 
3
17.5.27Dravite
Na(Mg
 
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
17.5.28 Ferridravite
17.5.29Axinite-(Mg)
Ca
 
2
MgAl
 
2
BSi
 
4
O
 
15
OH
17.5.30Uvite
Ca(Mg
 
3
)MgAl
 
5
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(F/OH)
17.5.31Garrelsite
Ba
 
3
NaSi
 
2
B
 
7
O
 
16
(OH)
 
4
17.5.32Tienshanite
KNa
 
3
Na
 
6
Ca
 
2
Ba
 
6
Mn
 
6
(Ti
4+
 
,Nb)
 
6
B
 
12
Si
 
36
O
 
114
(O,OH,F)
 
11
17.5.33Leucosphenite
BaNa
 
4
Ti
 
2
B
 
2
Si
 
10
O
 
30
17.5.34Taramellite
Ba
 
4
(Fe
3+
 
,Ti,Fe
2+
 
,Mg)
 
4
(B
 
2
Si
 
8
O
 
27
)O
 
2
Cl
 
x
17.5.35Titantaramellite
Ba
 
4
(Ti,Fe
3+
 
,Fe
2+
 
,Mg)
 
4
(B
 
2
Si
 
8
O
 
27
)O
 
2
Cl
 
x
17.5.36Nagashimalite
Ba
 
4
(V,Ti)
 
4
B
 
2
Si
 
8
O
 
27
(O,OH)
 
2
Cl
17.5.37Chromium-dravite
Na(Mg
 
3
)Cr
3+
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
17.5.38Wawayandaite
Ca
 
6
Mn
 
2
BBe
 
9
Si
 
6
O
 
23
(OH,Cl)
 
15
17.5.39Werdingite
(Mg,Fe)
 
2
Al
 
14
Si
 
4
B
 
4
O
 
37
17.5.40Axinite-(Mn)
Ca
 
2
Mn
2+
 
Al
 
2
BSi
 
4
O
 
15
(OH)
17.5.41Axinite
17.5.42Tinzenite
(CaMn
2+
 
)
 
2
Mn
2+
 
Al
 
2
BSi
 
4
O
 
15
(OH)
17.5.44Schorl
Na(Fe
2+
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
17.5.45Fluor-buergerite
Na(Fe
3+
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
O
 
3
F
17.5.46Feruvite
Ca(Fe
2+
 
)
 
3
MgAl
 
5
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
17.5.47Axinite-(Fe)
Ca
 
2
Fe
2+
 
Al
 
2
BSi
 
4
O
 
15
OH
17.5.48Homilite
Ca
 
2
(Fe
2+
 
,Mg)B
 
2
Si
 
2
O
 
10
17.5.49Grandidierite
(Mg,Fe
2+
 
)(Al,Fe
3+
 
)
 
3
(SiO
 
4
)(BO
 
3
)O
 
2
17.5.50Hyalotekite
(Ba,Pb,Ca,K)
 
6
(B,Si,Al)
 
2
(Si,Be)
 
10
O
 
28
(F,Cl)
17.5.51Hellandite-(Y)
(Ca,Y)
 
6
(Al,Fe
3+
 
)Si
 
4
B
 
4
O
 
20
(OH)
 
4

Other Names for Danburite

Synonyms:
Bementite (of Dana)
Other Languages:
Dutch:Danburiet
Finnish:Danburiitti
French:Danburite
German:Danburit
Italian:Danburite
Polish:Danburyt
Russian:Данбурит
Slovak:Danburit
Spanish:Danburita
Ukrainian:Данбурит

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Danburite

Reference List:

- +
Shepard, C.U. (1840): Der Danburit, eine neue Mineralspecies, Annalen der Physik und Chemie, Vol. 126 (2/050), p. 182

American Mineralogist (1974): 59: 79-85.

Hackwell, T.P. and Angel, R.J. (1992), The comparative compressibility of reedmergnerite, danburite and their aluminum analogs. European Journal of Mineralogy: 4: 1221-1227.

Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

Internet Links for Danburite

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  • Look for Danburite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Danburite details from Handbook of Mineralogy (PDF)
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    • Localities for Danburite

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Afghanistan
     
    • Badakhshan Province (Badakshan Province; Badahsan Province)
      • Khash & Kuran Wa Munjan Districts
    		Ikram Mineralogy (Wholly owned & manage by Ikram Nature Exploration (Pvt) Ltd)
    Australia
     
    • Tasmania
      • Rosebery district
        • Colebrook Hill
    		Bottrill, RS, unpub data 2001
    • Victoria
      • Dookie
        • Ascot Hills
    Austria
     
    • Salzburg
      • Hohe Tauern
        • Gastein valley
          • Bad Gastein
    		A. Strasser: Die Minerale Salzburgs, 1989
          • Kötschach valley
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993) / Kirchner, E.Ch. (1986): Danburit aus dem Kötschachtal bei Badgastein, Östereich. LAPIS 11 (11), 16 + 42
    Bolivia
     
    • Cochabamba Department
      • Chapare Province
    		[MinRec 32:461]
          • Cristalmayu subdistrict
            • Chocolatal (Rocko Rancho)
    		Alfredo Petrov specimens
    Alfredo Petrov specimens
    (unpublished thesis)
            • Cristalmayu
    		GEOBOL-PNUD, Proyecto Asbesto, March 1977.
    Alfredo Petrov, field collected specimens.
              • Cristalmayu valley
    		Natural History Museum Vienna collection
    Alfredo Petrov collection
                • San Francisco mine
    		GEOBOL-PNUD, Proyecto Asbesto, March 1977.
    GEOBOL-PNUD, Proyecto Asbesto, March 1977.
    Alfredo Petrov collection
    Burma (Myanmar)
     
    • Mandalay Division
      • Pyin-Oo-Lwin District
        • Mogok Township
          • Kyauk-Pyat-That
    		Ted Themelis (2008) Gems & mines of Mogok
          • Mogok Valley
            • Dattaw Hill
    		Ted Themelis (2008) Gems & mines of Mogok
    Ted Themelis (2008) Gems & mines of Mogok
    Themelis, Ted, 2008, Gems and Mines of Mogok.; Ted Themelis (2008) Gems & mines of Mogok
    Ted Themelis (2008) Gems & mines of Mogok
    Themelis, Ted, 2008, Gems and Mines of Mogok.; Ted Themelis (2008) Gems & mines of Mogok
    Ted Themelis (2008) Gems & mines of Mogok
    Ted Themelis (2008) Gems & mines of Mogok
    Ted Themelis (2008) Gems & mines of Mogok
    Ted Themelis (2008) Gems & mines of Mogok
    No reference listed
          • Pein-Pyit (Painpyit; Pyan Pyit)
    		Ted Themelis (2008) Gems and Mines of Mogok
    Ted Themelis (2008) Gems & mines of Mogok
    American Mineralogist (2008) 93:1545-1549
    • Shan State
      • Kyaukme District
    		Van King
    Canada
     
    • New Brunswick
      • Kings Co.
        • Cardwell Parish
          • Penobsquis
    		Canadian Mineralogist (1981): 19: 291-301.
        • Hammond Parish
          • Salt Springs evaporite deposit
    		BURNS, P.C., HAWTHORNE, F.C. & STIRLING, J.A.R. (1992): Trembathite, (Mg,Fe)3B7O13Cl, a new borate mineral from the Salt Springs potash deposit, Sussex, New Brunswick. Canadian Mineralogist 30, 445-448.
    • Northwest Territories
      • O'Grady Lake area
    		CanMin 41:117-137
    • Nova Scotia
      • Cumberland Co.
        • Pugwash
    		R.C. Boehner, "Salt and Potash Resources in Nova Scotia", N.S. Dept. Mines and Energy, Bulletin 5, 1986.
      • Hants Co.
        • West Hants
    		CanRockhound v.6, n.1 (2001)
      • Victoria Co.
        • Iona
    		Rocks & Minerals, Nov-Dec, 2003
    • Nunavut Territory
      • Ellef Ringnes Island
    		Rocks & Minerals (Nov-Dec. 2003)
    • Yukon Territory
      • Watson Lake Mining District
        • Cassiar Mts
          • Screw Creek
    		Rocks & Min.: 60(1):13.
    China
     
    • Yunnan Province
      • Honghe Autonomous Prefecture
        • Gejiu Co.
    		Yiming Zhao and Daxin Li (1987): Acta Geoscientia Sinica 9(2), 237-252
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
        • Zruč nad Sázavou (Srutsch an der Sasau)
    		Pauliš, P.: Skarnové ložisko Vlastějovice u Zruče nad Sázavou. Minerál, 1996, roč. 4, č. 6, s. 392-398.
    France
     
    • Provence-Alpes-Côte d'Azur
      • Alpes-de-Haute-Provence
    		Favreau G., Meisser N., Chiappero P.J. (2004), Saint-Maime (Alpes-de-Haute-Provence): un exemple de pyrométamorphisme en région provençale, n°3, pp: 59-92
    Germany
     
    • North Rhine-Westphalia
      • Sauerland
        • Winterberg
          • Hildfeld
    		Weiss. "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
          • Silbach
    		D. Pawlowski: "Mineralfundstellen im Sauerland", Weise (Munich), 1991
    • Saxony-Anhalt
    		Wittern: "Mineralfundorte in Deutschland", 2001
    Iran
     
    • Hormozgan Province
    		Michal Filippi, et al (2002) Mineralien Welt, 13, 1, 60-72.; Mineralogical Record (2001) 32:252-253
    Italy
     
    • Aosta Valley
      • Nus
        • Saint-Barthélemy
    		• Barresi, A.A., Kolitsch, U., Ciriotti, M.E., Ambrino, P., Bracco, R., Bonacina, E. (2005): La miniera di manganese di Varenche (Aosta, Italia nord-occidentale): ardennite, arseniopleite, manganberzeliite, pirofanite, sarkinite, thortveitite, nuovo As-Sc-analogo della metavariscite e altre specie. Micro (località), 2/2005, 81-122.
    • Latium
      • Rome Province
    		Caponera, I., Fiori, S., Pucci, R., & Signoretti, E. (2007). I minerali dei Colli Albani. Un aggiornamento sugli ultimi dieci anni di ricerche. Rivista Mineralogica Italiana, 31 (2), 74-91.
        • Bracciano Lake
    		Mariani P., Scaini G.: "I minerali d'Italia" - Rizzoli, 1978 and A. Del Caldo, C. Del Moro, C.M. Gramaccioli, M. Boscardin M. "Guida ai Minerali" Fabbri ed. Milano, 1981 and De Michele V. (1975) – Guida Mineralogica d’Italia – Ist. Geogr. De Agostini, Novara
      • Viterbo Province
    		Camara, F., Oberti, R., Ottolini, L., Ventura, G. D., Bellatreccia, F. (2008): The crystal chemistry of Li in gadolinite. American Mineralogist, 93, 996-1004.
          • Vetralla
    		American Mineralogist (2002): 87: 739–744; American Mineralogist, Volume 91, pages 1170–-1177, 2006
    Carlini, R., Signoretti, E., 2003. Località minori del vulcano Vicano: Villa S.Giovanni in Tuscia e Mazzocchio. Il Cercapietre. Not. del Gruppo Mineralogico Romano, 1-2: 33-41
    • Piedmont
      • Cuneo Province
        • Tanaro Valley
          • Ormea
    		Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
    Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
      • Torino Province
        • Susa Valley
          • Bussoleno
            • Tignai
    		Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): MInerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
    • Trentino-Alto Adige
      • Bolzano Province (South Tyrol)
        • Aurina Valley (Ahrnbach Valley)
    		Joachim Esche collection
    Südtirol un die Dolomiten (2002) - ExtraLapis N°22 - Christian Weise Verlag - München pp.96
    • Tuscany
      • Grosseto Province
        • Pitigliano
    		Liotti L., 1991. I minerali dei vulcani laziali a Pitigliano (Grosseto). Riv. Mineral. Ital., 15 (3): 121-139.
    Japan
     
    • Honshu Island
      • Tohoku Region
        • Iwate Prefecture
          • Kamaishi City
    		Dr. Matsuo Nambu collection (curated by the Geological Survey of Japan)
    • Kyushu Region
      • Miyazaki Prefecture
        • Hinokage-cho
    		Dr. Kameki Kinoshita collection (curated at Geological Survey of Japan)
    Nishikubo collection
        • Takachiho
    		Ryoichi SADANAGA and Michiaki BUNNO (1974) THE WAKABAYASHI MINERAL COLLECTION Bulletin No. 7 The University Museum, The University of Tokyo
      • Oita prefecture
        • Ono-gun
    		Ryoichi SADANAGA and Michiaki BUNNO (1974) THE WAKABAYASHI MINERAL COLLECTION Bulletin No. 7 The University Museum, The University of Tokyo
    Madagascar
     
    • Antananarivo Province
      • Vakinankaratra Region
        • Betafo District
          • Ambohimanambola Commune
    		Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
    De Vito et al (2006): Nb-Ti-Ta oxides in the gem-mineralized and "hybrid" Anjanabonoina granitic pegmatite, central Madagascar: A record of magmatic and postmagmatic events. Canadian Mineralogist. 44: 87-103.
          • Andrembesoa Commune
            • FKT Antsentsindrano
    		Demartin, F. et al (2001): Schiavinatoite,(Nb,Ta)BO4, the Nb analogue of behierite. European Journal of Mineralogy 13, 159-165
    Lacroix, A. (1912): Sur quelques minéraux des pegmatites du Vakinankaratra (Madagascar). Bulletin de la Société française de Minéralogie, Paris 35 , 76-84
            • Tetezantsio-Andoabatokely Pegmatite Field
    		Jordi Fabre photo ( On schiavinatoite specimen)
    Gratacap, L. P. (1916): Some minerals from Madagascar as described in prof. A Lacroix's Mineralogie de France et ses colonies. American Mineralogist, 1: 17-34
        • Sahatany Pegmatite Field (Mt Ibity area)
          • Manandona Valley
    		[MinRec 33:165]/ Pezzotta, F. (1999): Madagaskar. Das Paradies der Mineralien und Edelsteine. Extra Lapis nr 17, pp 53-54 (german edition)
          • Sahatany Valley
    		Lefevre & Thomas (1998): Les pegmatites de la vallée de la Sahatany, Madagascar. La Règne Minéral, nr 19, 15-28
    Larsen, K. E. (2003): Mineralene i Sahatany pegmatittfelt, Madagaskar. Bergverksmuseets skrifter 25, 5-18 (in norwegian)
    Lacroix, A. (1912): Sur quelques minéraux des pegmatites du Vakinankaratra (Madagascar). Bulletin de la Société française de Minéralogie, Paris 35 , 76-84
    Knut Edvard Larsen photo & collection
    • Fianarantsoa Province
      • Amoron'i Mania Region
        • Ambatofinandrahana District
          • Mandrosonoro area
            • Ambatovita
    		Laurs, B. L. et al. (2003): Pezzottaite from Ambatovita, Madagaascar: A new Gem mineral. Gems & Gemology 39 (4): 284-301
        • Ambositra District
          • Ambositra Commune
            • Fasimena
    		Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. 624p (p.458)
    Mexico
     
    • Baja California (Baja California Norte; BC Norte)
      • Mun. de Ensenada
        • La Huerta
    		Rocks & Min.: 63:456; Panczner (1987): 87-251..
      • Mun. de Tecáte
        • Laguna Hansen
          • Rosa de Castillo
    		Rocks & Min.:63:456; Panczner(1987):177 & 186.
    • San Luis Potosí
      • Mun. de Charcas
    		Handbook of Mineralogy (Bakerite)
    [www.johnbetts-fineminerals.com]
    Panczner(1987).
    Richard Dale Collection
    Panczner (1987): 177.
    Panczner (1987): 177; [www.johnbetts-fineminerals.com]
    Mozambique
     
    • Zambezia Province
      • Alto Ligonha District
    		 Thomas, R., Davidson, P. (2010): Hambergite-rich melt inclusions in morganite crystals from the Muiane pegmatite, Mozambique and some remarks on the paragenesis of hambergite. - Mineralogy and Petrology, 100, 3-4, 227-23
    Namibia
     
    • Erongo Region
      • Swakopmund District
        • Arandis
    		Dana 7:I:578.
    • Kunene Region
      • Damaraland District
        • Omaruru
    		Jahn, S. & Bast, R. (2006): Der Krantzberg bei Omaruru, Namibia, und die Mineralvorkommen in seiner Umgebung. Mineralien-Welt 17 (3), 32-48.; - Bezing, L. von, Bode, R. & Jahn, S. (2007): Namibia. Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag, Haltern (in English)
    Nepal
     
    • Kosi Zone (Koshi Zone)
      • Sankhuwasabha District (Sankhuwa Sahba; Shankuwa-Sava)
    		Natural History Museum Vienna collection
    • Seti Zone
      • Bajhang District
        • Chainpur
    		Rocks & Minerals: Nov-Dec, 2003
    Norway
     
    • Buskerud
      • Øvre Eiker
        • Gunhildrud
    		Hurum, J. H; Jahren, J.; Berg, H.-J. & Bjerkgaard, T. (1997): En eksotisk pegmatitt i kambrosiluren ved Eikeren, Buskerud. STEIN 24 (3), 125-128
    • Telemark
      • Kragerø
    		Oftedal, I. (1963): Contributions to the mineralogy of Norway No 16. Danburite from the Kragerø District. Norsk Geologisk Tidsskrift 43, 73-74
    Romania
     
    • Maramureș Co.
    		http://minerals-of-the-carpathians.eu
    Russia
     
    • Eastern-Siberian Region
      • Prebaikalia (Pribaikal'e)
        • Irkutskaya Oblast'
          • Zheleznogorsk
    		Mazurov, M.P., Grishina, S.N., Istomin, V.E., and Titov, A.T. (2007): Geology of Ore Deposits 49(4), 271-284.
      • Saha Republic (Sakha Republic; Yakutia)
    		[World of Stones 12:49]
          • Aldan
    		P.M. Kartashov data
      • Transbaikalia (Zabaykalye)
        • Chitinskaya Oblast'
          • Krasnyi Chikoy
    		Rainer Thomas, Paul Davidson and Elena Badanina (2010) Water- and Boron-Rich Melt Inclusions in Quartz from the Malkhan Pegmatite, Transbaikalia, Russia. Minerals 2012, 2, 435-458.
    Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    [MinRec 32:44]
    American Mineralogist, Volume 88, pages 830–836, 2003; International Geological Congress (2008) MRD-06 The Sosedka gem tourmaline-rich mine: Emplacement of extremely chemically heterogeneous pegmatite-forming medium
    • Far-Eastern Region
      • Primorskiy Kray
        • Kavalerovo Mining District
          • Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche)
            • Dal'negorsk B deposit
    		Van King
    Slovakia
     
    • Prešov Region
      • Prešov Co.
        • Vyšná Šebastová
    		Ďuďa,R., et al., 1981: Mineralógia severnej časti Slanských vrchov. Min.Slovaca, Monografia 2, 98s
    Switzerland
     
    • Grischun (Grisons; Graubünden)
      • Lugnez Valley (Lumnezia Valley)
        • Vals Valley
          • Länta
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 131.
    Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 131.
      • Medel Valley
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 131.
    Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 131.
    Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 131.
    • Ticino (Tessin)
      • Leventina
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 131.
    • Uri
      • Maderanertal
        • Etzli Valley
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 131.
    Tajikistan
     
    • Region of Republican Subordination
      • Tien Shan Mtn
        • Alai Range (Alayskiy)
    		CanMin 42:107-119 (2004); Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    • Viloyati Mukhtori Gorno-Badakhshan (Viloyati Badakhshoni Kuni)
      • Pamir Mts
        • Rangkul' Highlands
    		Evseev, A. A. (1995) Kazaknstan and Middle Asia. A brief Mineralogical Guide. World of Stone 8:24-30
    Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Tanzania
     
    • Morogoro Region
      • Uluguru Mts (Uruguru Mts)
        • Morogoro
    		Hintze, J. (2010): Safari njema - Afrikanisches Tagebuch (I): Die gelben Danburite von Morogoro in Tansania. Lapis 35 (3), 25-28 (in German).; Radl, W. & Weiß, S. (2010): Gelber Danburit - ein neuer Edelstein von Morogoro in Tansania. Lapis 35 (3), 28-31 (in German).
    Turkmenistan
     
    • Lebap Province
      • Chardzhou
    		Evseev, A. A. (1995) Kazaknstan and Middle Asia. A brief Mineralogical Guide. World of Stone 8:24-30
    Fersman Mineralogical Museum collection
    UK
     
    • England
      • Cornwall
        • Liskeard District
          • Linkinhorne
            • Minions
    		No reference listed
      • Devon
        • Okehampton area (Northern Dartmoor)
    		http://www.mineralman.f9.co.uk/quarries/meldon.htm
    USA
     
    • Alabama
      • Clarke Co.
    		Rocks & Minerals (Nov-Dec. 2003)
    • Alaska
      • Nome Borough
        • Port Clarence District
    		U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
    • Arizona
      • Cochise Co.
        • Dragoon Mts
          • Turquoise District (Courtland-Gleeson District)
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 199.
    • California
      • Riverside Co.
        • Crestmore
          • Crestmore quarries
            • Sky Blue Hill
    		Woodford, A.O., Crippen, R.A., and Garner, K.B. (1941) Section Across Commercial Quarry, Crestmorre, California. American Mineralogist: 26: 352-381; Eakle, A.S. (1927) Famous mineral localities: Crestmore, Riversdie County, California. American Mineralogist: 12: 319-321; Jenni, Clarence M. (1957), Crestmore and its minerals: Gems & Minerals, No. 238: 34-79, July 1957; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 368.
        • Jurupa Mts
          • Jurupa
    		Cooney, R.L. (1956), The mineralogy of the Jensen and Henshaw quarries near Riverside, California: Unpublished Master’s thesis, University of California at Los Angeles: 16; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 368; Devito, F. and Ordway, A. (1984), The Jensen Quarry, Riverside County, California. Mineralogical Record: 15(5): 273-290.
      • San Diego Co.
        • Jacumba District
          • Jacumba
            • Tule Mountain (Mount Tule; Tulley Mountain)
    		Mineralogical Record 33(5):363-407
        • Ramona District
          • Ramona
    		http://www.nhm.org; Natural History Museum of LA Co. spec.#44050
    • Connecticut
      • Fairfield Co.
    		Shepard, C.U. (1939) Amer J of Sci; Shepard, C.U. (1840): Der Danburit, eine neue Mineralspecies, Annalen der Physik und Chemie, Vol. 126 (2/050), p. 182
    Shepard, Charles U. (1839): Notice of Danburite, a new mineral species. American Journal of Science: series 1, 35 (1): 137-139; Dana, James D. (1850): On Danburite. American Journal of Science: series 2, 9: 286-287; Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201; Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut.
    Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.
    • Louisiana
      • Iberville Parish
        • Plaquemine
    		Hurlbut, C. S., Taylor, R. E. (1937): Hilgardite, a new mineral species from Choctaw Salt Dome, Louisiana. American Mineralogist. 22, 1052-1057; Rocks & Minerals: 69(3): 156-162.; American Mineralogist 23:898
    • Montana
      • Jefferson Co.
    		The Lapidary Journal, May 1985 (W.C. van Laer); The Mineral News (several issues); many ID by x-ray diffraction (Jim Wilson, Weber State; W.C. van Laer, Montana Tech; U.S. National Museum; some by physical characteristics, i.e.: crystal form, fluorescence, magnetic attraction, etc.) some yet to be published
    van Laer, W.C.: The Lapidary Journal, April 1979 Rocks and Minerals (2012) Vol. 87, No. 3 May/June
      • Silver Bow Co.
    		Rocks & Minerals (Nov-Dec. 2003)
    • New York
      • Putnam Co.
        • Southeast Township
          • Brewster
    		Januzzi (1976) Mineral Localities of Connecticut & Southeastern New York State (Januzzi, 1966, 1989) (Trainer, 1938).
      • St. Lawrence Co.
        • De Kalb Township
    		Marian Lupulescu (2010) The Pegmatites of New York. The 37th Rochester Mineralogical Symposium, April 15-18, 2010
    Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
    George Robinson & Steven Chamberlain (2007) Gazetteer of major New York State mineral localities. Rocks & Minerals, 82, #6, 472-483.; Chamberlain, S.C., Lupulescu, M., Bailey, D.G., Carlin, D.M. (2010) Classic danburite locality near Russell, St. Lawrence Co., NY: New collecting and new research. The 37th Rochester Mineralogical Symposium, April 15-18, 2010
    • Texas
      • Brazoria Co.
    		Rocks & Minerals: 66(3): 196-224.
    • Utah
      • San Juan Co.
        • Paradox Basin
    		Omer B. Raup and Beth M. Madsen (1986) Journal of Sedimentary Petrology, 56, #2, 248-251
      • Tooele Co.
        • Deep Creek Mts
          • Gold Hill District (Clifton District)
    		UGMS Bull 117 Minerals and Mineral Localities of Utah; U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    • Washington
      • King Co.
        • North Bend
          • Green Mountain
    		http://www.pnwfm.org/newsletters/PNWFM_newsletter_0409.pdf
    Vietnam
     
    • Yenbai Province (Yen Bai Province)
      • Luc Yen
    		Min Rec 2007 38:443-453
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