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Danburite

Big Photo

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

Show Danburite Photos (83)
Formula:
Ca[BSiO
 
4
]
 
2
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.

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: Peaks:
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:
Ca[BSiO
 
4
]
 
2
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.IMA2007-049
NaAlSi
 
3
O
 
8
9.FA.05Kaliophilite
K[AlSiO
 
4
]
9.FA.05Kalsilite
K[AlSiO
 
4
]
9.FA.05Nepheline
(Na,K)[AlSiO
 
4
]
9.FA.05Panunzite
(Na,K)[AlSiO
 
4
]
9.FA.05Trikalsilite
(Na,K)[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
(LiAl)
 
0.6
Si
 
2.4
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
Ba[Al
 
2
Si
 
2
O
 
8
]
9.FA.30Hyalophane
(K,Ba)[Al(Si,Al)Si
 
2
O
 
8
]
9.FA.30Microcline
K[AlSi
 
3
O
 
8
]
9.FA.30Orthoclase
K[AlSi
 
3
O
 
8
]
9.FA.30Sanidine
K[AlSi
 
3
O
 
8
]
9.FA.30Rubicline
(Rb,K)[AlSi
 
3
O
 
8
]
9.FA.30Kokchetavite
KAlSi
 
3
O
 
8
9.FA.30Monalbite
Na[AlSi
 
3
O
 
8
]
9.FA.35Albite
Na[AlSi
 
3
O
 
8
]
9.FA.35Andesine
(Na,Ca)[Al(Si,Al)Si
 
2
O
 
8
]
9.FA.35Anorthite
Ca[Al
 
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.35Lingunite
(Na,Ca)AlSi
 
3
O
 
8
9.FA.40Paracelsian
Ba[Al
 
2
Si
 
2
O
 
8
]
9.FA.45Svyatoslavite
Ca[Al
 
2
Si
 
2
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
Related Minerals - Hey's Index Grouping:
17.5.1Manandonite
LiAl
 
4
Si
 
3
BO
 
10
(OH)
 
6
17.5.2Reedmergnerite
Na[BSi
 
3
O
 
8
]
17.5.3Searlesite
NaBSi
 
2
O
 
5
(OH)
 
2
17.5.4Olenite
([ ],Na)[(Al,Li)
 
3
][Al
 
6
][(O,OH)
 
3
|OH|(BO
 
3
)
 
3
|Si
 
6
O
 
18
]
17.5.5Elbaite
[Na][(Li,Al)
 
3
][Al
 
6
][(OH)
 
3
|OH|(BO
 
3
)
 
3
|Si
 
6
O
 
18
]
17.5.6Kalborsite
K
 
6
[Cl|B(OH)
 
4
|Al
 
4
Si
 
6
O
 
20
]
17.5.7Boromuscovite
KAl
 
2
[(OH)
 
2
|BSi
 
3
O
 
10
]
17.5.8Poudretteite
KNa
 
2
B
 
3
Si
 
12
O
 
30
17.5.9Liddicoatite
[Ca][Li
 
2
Al][Al
 
6
][(OH)
 
3
|F|(BO
 
3
)
 
3
|Si
 
6
O
 
18
]
17.5.10Datolite
CaB[OH|SiO
 
4
]
17.5.12Howlite
Ca
 
2
B
 
5
SiO
 
9
(OH)
 
5
17.5.13Bakerite
Ca
 
4
B
 
4
[(OH)
 
4
|HBO
 
4
|(SiO
 
4
)
 
3
]
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
 
24
Mg
 
8
Al
 
2
Si
 
8
(O,OH)
 
32
(BO
 
3
)
 
8
(CO
 
3
)
 
8
(H
 
2
O,Cl)
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
(Ca,Y)
 
2
(Ti
4+
 
,Fe
3+
 
,Al)[B
 
4
Si
 
4
O
 
22
(O,OH)
 
6
](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
[O
 
3
|BO
 
3
|(SiO
 
4
)
 
3
]
17.5.26Holtite
(Ta,Sb)Al
 
6
[O
 
3
|BO
 
3
|(SiO
 
4
)
 
3
]
17.5.27Dravite
[Na][Mg
 
3
][Al
 
6
][(OH)
 
3
|OH|(BO
 
3
)
 
3
|Si
 
6
O
 
18
]
17.5.28 Ferridravite
17.5.29Axinite-(Mg)
Ca
 
2
MgAl
 
2
[OH|BSi
 
4
O
 
15
]
17.5.30Uvite
[Ca][(Mg,Fe
2+
 
)
 
3
][MgAl
 
5
][(OH)
 
3
|OH|(BO
 
3
)
 
3
|Si
 
6
O
 
18
]
17.5.31Garrelsite
Ba
 
3
NaSi
 
2
B
 
7
O
 
16
(OH)
 
4
17.5.32Tienshanite
Na
 
2
BaMnTiB
 
2
Si
 
6
O
 
20
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
17.5.37Chromdravite
[Na][Mg
 
3
][(Cr
3+
 
,Fe
3+
 
)
 
6
][(OH)
 
3
|OH|(BO
 
3
)
 
3
|Si
 
6
O
 
18
]
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
[OH|BSi
 
4
O
 
15
]
17.5.41Axinite
(Ca,Fe,Mn)Al
 
2
BSi
 
4
O
 
15
OH
17.5.42Tinzenite
(Ca,Mn
2+
 
,Fe
2+
 
)
 
3
Al
 
2
[OH|BSi
 
4
O
 
15
]
17.5.44Schorl
[Na][Fe
2+
3
][Al
 
6
][(OH)
 
3
|OH|(BO
 
3
)
 
3
|Si
 
6
O
 
18
]
17.5.45Buergerite
[Na][Fe
3+
3
][Al
 
6
][O
 
3
|F|(BO
 
3
)
 
3
|Si
 
6
O
 
18
]
17.5.46Feruvite
[Ca][(Fe
2+
 
 ,Mg)
 
3
][MgAl
 
5
][(OH)
 
3
|OH|(BO
 
3
)
 
3
|Si
 
6
O
 
18
]
17.5.47Axinite-(Fe)
Ca
 
2
Fe
2+
 
Al
 
2
[OH|BSi
 
4
O
 
15
]
17.5.48Homilite
Ca
 
2
(Fe
2+
 
,Mg)B
 
2
[O|SiO
 
4
]
 
2
17.5.49Grandidierite
(Mg,Fe
2+
 
)(Al,Fe
3+
 
)
 
3
[O
 
2
|BO
 
3
|SiO
 
4
]
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)
German names:
Danburit
Russian names:
Данбурит
Spanish names:
Danburita

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: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
  • Search for Danburite in the Natural History Museum (London) online catalogue
  • Danburite details from Handbook of Mineralogy (PDF)
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    • Localities for Danburite

    Hide Locality List
    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.
    These maps work faster with Firefox!
    (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.
    Australia
     
    • Tasmania
      • Rosebery district
        • Colebrook Hill
    		Bottrill, RS, unpub data 2001
    • Victoria
      • Dookie
        • Ascot Hills
    Austria
     
    • Salzburg
      • Hohe Tauern Mts
        • 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]
    Natural History Museum Vienna collection
    Alfredo Petrov collection
    Alfredo Petrov collection
    Burma (Myanmar)
     
    • Mandalay Division
      • Sagaing District
        • Mogok
    		No reference listed
    Canada
     
    • New Brunswick
      • Kings Co.
        • Sussex
          • Cardwell Parish
            • Penobsquis
    		Canadian Mineralogist (1981): 19: 291-301.
    • Northwest Territories
      • O'Grady Lake area
    		CanMin 41:117-137
    • Nova Scotia
      • Hants Co.
    		CanRockhound v.6, n.1 (2001)
      • Victoria Co.
        • Cape Breton Island
          • 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.
    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
    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
        • Vico Lake
          • Ronciglione
          • Vetralla
    		No reference listed
    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
    • 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 Island
      • Miyazaki Prefecture
        • Hinokage-cho
    		Dr. Kameki Kinoshita collection (curated at Geological Survey of Japan)
        • 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 - Antsirabé region)
        • Betafo Department
          • Ambohimanambola Commune
            • Mount Ikaka
    		[MinRec 20:191]
          • Andrembesoa Commune
            • FKT Antsentsindrano
    		[Eur.J.Min 13:159-165]
    Lacroix, A. (1912): "Sur quelques minéraux des pegmatites du Vakinankaratra (Madagascar), Soc. franc.min 35 , 76-78
        • Sahatany Pegmatite Field (Mt Bity (Ibity) area)
          • Manandona Valley
    		[MinRec 33:165] Extra Lapis nr 17. Madagascar p 54 (german edition)]
          • Sahatany Valley
    		Lefevre & Thomas (1998): Les pegmatites de la vallée de la Sahatany, Madagascar. La Règne Minéral, 19, 15-28
    Soc.Franc.Min.Cryst. 35 (1912), pp 8-79
    • Fianarantsoa Province
      • Amoron'i Mania Region
        • Ampandramaika-Malakialina Pegmatite Field
          • Ambatofinandrahana Departement
            • Mandrosonoro area
              • Ambatovita
    		http://www.geminterest.com/ : "Pezzottaïte: "Béryl", Traduction, Arrangement, Données par JM. Arlabosse, .
    Mexico
     
    • Baja California 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
        • Charcas
    		[www.johnbetts-fineminerals.com]
    Panczner(1987).
    Panczner (1987): 177.
    Panczner (1987): 177; [www.johnbetts-fineminerals.com]
    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.
    Nepal
     
    • Kosi Zone
      • Sankhuwasabha District (Sankhuwa Sahba)
    		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
    Russia
     
    • Eastern-Siberian Region
      • Saha Republic (Sakha Republic; Yakutia)
    		[World of Stones 12:49]
      • Transbaikalia (Zabaykalye)
        • Chitinskaya Oblast'
          • Krasny Chikoy
            • Malkhan pegmatite field (Malchan)
              • Danburitovaya pegmatite vein
    		[MinRec 32:44]
    American Mineralogist, Volume 88, pages 830–836, 2003
    • Far-Eastern Region
      • Primorskiy Kray
        • Dal'negorsk (Dalnegorsk)
    Slovakia
     
    • Prešov Region
      • Northern Slanské Mts
        • Vyšná Šebastová
    		Ďuďa,R., et al., 1981: Mineralógia severnej časti Slanských vrchov. Min.Slovaca, Monografia 2, 98s
    Switzerland
     
    • Grischun (Grisons; Graubünden)
      • Medel Valley
    		Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
    Christian Bracke Collection
    Tajikistan
     
    • Region of Republican Subordination
      • Tien Shan Mts
        • Alayskiy (Alai) Range
    		CanMin 42:107-119 (2004)
    UK
     
    • England
      • Cornwall
        • Liskeard District
          • Caradon & Phoenix Area (South-Eastern Bodmin Moor)
            • Linkinhorne
    		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)
    • 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.
        • Fontana
    		MinRec 15:273-290
      • San Diego Co.
        • Jacumba District
          • Mt. Tule
    		Mineralogical Record 33(5):363-407
        • Ramona District
    		http://www.nhm.org; Natural History Museum of LA Co. spec.#44050
    • Connecticut
      • Fairfield Co.
    		Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
    • Louisiana
      • Iberville Parish
    		Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 380; Rocks & Minerals: 69(3): 156-162.
    • 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
      • Silver Bow Co.
    		Rocks & Minerals (Nov-Dec. 2003)
    • New York
      • Putnam Co.
        • Brewster
    		Januzzi (1976) Mineral Localities of Connecticut & Southeastern New York State
      • St Lawrence Co.
    		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.
    • Texas
      • Brazoria Co.
    		Rocks & Minerals: 66(3): 196-224.
    • Utah
      • 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 (Yen Bai) Province
      • Luc Yen
    		Min Rec 2007 38:443-453
    Mineral and/or Locality
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