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Dolomite

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Déodat Gratet de Dolomieu
Formula:
CaMg(CO3)2
Colour:
Colourless, white, gray, reddish-white, brownish-white, or pink; colourless in transmitted light
Lustre:
Vitreous, Sub-Vitreous, Resinous, Waxy, Pearly
Hardness:
3½ - 4
Specific Gravity:
2.84 - 2.86
Crystal System:
Trigonal
Member of:
Name:
Named in 1791 by Nicolas Théodore de Saussure in honor of the French mineralogist and geologist, Déodat (Dieudonné) Guy Silvain Tancrède Gratet de Dolomieu [June 24, 1750, Dolomieu, near Tour-du-Pin, Isère, France - November 26, 1801, Château-Neuf, Sâone-et-Loire, France]. de Dolomieu wrote numerous books on observations on geology, notably about the Alps and Pyrenees, in addition to theoretical books about the internal structure of the Earth. He discovered a specimen of what would eventually be called dolomite during his participation in Napoleon Bonaparte's expedition into Egypt in 1798.
Isostructural with:
Dolomite Group. Ankerite-Dolomite Series.

Usually found as druzes or clusters of small rhombohedral crystals with a somewhat "saddle"-like shape, white to tan to pink in color.

For rocks also see dolostone.

Visit gemdat.org for gemological information about Dolomite.


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Classification of DolomiteHide

Approved, 'Grandfathered' (first described prior to 1959)
5.AB.10

5 : CARBONATES (NITRATES)
A : Carbonates without additional anions, without H2O
B : Alkali-earth (and other M2+) carbonates
Dana 7th ed.:
14.2.1.1
14.2.1.1

14 : ANHYDROUS NORMAL CARBONATES
2 : AB(XO3)2
11.4.6

11 : Carbonates
4 : Carbonates of Ca

Physical Properties of DolomiteHide

Vitreous, Sub-Vitreous, Resinous, Waxy, Pearly
Transparency:
Transparent, Translucent
Comment:
Usually not vitreous or sub-vitreous
Colour:
Colourless, white, gray, reddish-white, brownish-white, or pink; colourless in transmitted light
Streak:
White
Hardness:
3½ - 4 on Mohs scale
Hardness Data:
Measured
Tenacity:
Brittle
Cleavage:
Perfect
On {1011}.
Parting:
Noted in lamellar twins on {0221}. Twin gliding on {0221};
Fracture:
Sub-Conchoidal
Translation gliding:
translation gliding with T{0001}, t[1010].
Density:
2.84 - 2.86 g/cm3 (Measured)    2.876 g/cm3 (Calculated)

Optical Data of DolomiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.679 - 1.681 nε = 1.500 - 1.503
Birefringence:
0.179
Max Birefringence:
δ = 0.179
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Optical Extinction:
Parallel
Comments:
Anomalously biaxial.

Chemical Properties of DolomiteHide

Formula:
CaMg(CO3)2
Common Impurities:
Fe,Mn,Co,Pb,Zn

Crystallography of DolomiteHide

Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Space Group:
R3
Setting:
R3
Cell Parameters:
a = 4.8012(1) Å, c = 16.002 Å
Ratio:
a:c = 1 : 3.333
Unit Cell V:
319.45 ų (Calculated from Unit Cell)
Z:
3
Morphology:
Crystals typically rhombohedral with {1011} or {4041} dominant, may also be prismatic {1120} terminated by rhombohedral faces; tabular {0001} with {1120}; {1011} often striated horizontally or curved - "saddle" or "fingernail" habit. Also massive, coarse to fine granular, fibrous or pisolitic.
Twinning:
On {0001}, common with re-entrant angles around the middle edges; on {1010} common; on {1120}, common, as complementary twins simulating holohedral symmetry; also as double twins by combination of this law and twins on {1010} or {0001}. On {1011}, rare. On {0221} as lamellae, especially in grains of dolomite marble.

Crystallographic forms of DolomiteHide

Crystal Atlas:
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Dolomite no.2 - Goldschmidt (1913-1926)
Dolomite no.7 - Goldschmidt (1913-1926)
Dolomite no.18 - Goldschmidt (1913-1926)
Dolomite no.54 - Goldschmidt (1913-1926)
Dolomite no.59 - Goldschmidt (1913-1926)
Dolomite no.89 - Goldschmidt (1913-1926)
3d models and HTML5 code kindly provided by www.smorf.nl.

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Epitaxial Relationships of DolomiteHide

Epitaxial Minerals:
Epitaxy Comments:
Growths of dolomite on calcite or vice versa, with parallel axes; also dolomite on rhodochrosite or siderite. Also occurs in oriented growths with antigorite (uncertain), and with chlorite [{0001} and {001} parallel].

X-Ray Powder DiffractionHide

Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.
Powder Diffraction Data:
d-spacingIntensity
4.03 (3)
4.69 (5)
3.70(10)
2.886(100)
2.670(10)
2.540 (8)
2.405(10)
2.192(30)
2.066 (5)
2.015(15)
1.848 (5)
1.804(20)
1.787(30b)
Comments:
ICDD 11-78, ICDD 34-517 (ferroan)

Occurrences of DolomiteHide

Synonyms of DolomiteHide

Other Language Names for DolomiteHide

Varieties of DolomiteHide

BrossiteA ferroan variety of Dolomite with up to 10% FeCO3 (Siderite component).
Originally reported from Brosso Mine, Cálea, Léssolo, Canavese District, Torino Province, Piedmont, Italy.
Cobaltoan DolomiteA Co2+-bearing variety of dolomite.
Samples from Příbram, Czech Republic, contain 5.17% CoO.
Ferroan DolomiteFe-bearing, relatively common variety of dolomite.
GreineriteA manganoan variety of dolomite, but probably only a dolomite with a faint manganese content. The type material is lost.
Manganoan DolomiteA Mn-bearing dolomite.
Mg-rich DolomiteA dolomite with Mg > Ca by a significant amount
PlumbodolomitA Pb-bearing variety of dolomite.
TaraspiteA banded, green sinter dolomite, owing its colour to minor contents of nickel (0.1-0.3% NiO) and iron (0.75-6% FeO). The material is used for carving.
TerueliteA black dolomite originally described from Teruel, Aragón, Spain.
Zincian DolomiteA variety of dolomite containing Zinc

Relationship of Dolomite to other SpeciesHide

Member of:
Other Members of this group:
AnkeriteCa(Fe2+,Mg)(CO3)2Trig. 3 : R3
KutnohoriteCa(Mn,Mg,Fe)(CO3)2Trig. 3 : R3
MinrecorditeCaZn(CO3)2Trig. 3 : R3
NorsethiteBaMg(CO3)2Trig. 3 2 : R3 2
Forms a series with:

Common AssociatesHide

BaryteBaSO4
CalciteCaCO3
CelestineSrSO4
FluoriteCaF2
GypsumCaSO4 · 2H2O
QuartzSiO2
SideriteFeCO3
Associated Minerals Based on Photo Data:
Quartz2,689 photos of Dolomite associated with Quartz on mindat.org.
Calcite2,462 photos of Dolomite associated with Calcite on mindat.org.
Pyrite1,470 photos of Dolomite associated with Pyrite on mindat.org.
Sphalerite1,304 photos of Dolomite associated with Sphalerite on mindat.org.
Chalcopyrite1,038 photos of Dolomite associated with Chalcopyrite on mindat.org.
Fluorite881 photos of Dolomite associated with Fluorite on mindat.org.
Galena621 photos of Dolomite associated with Galena on mindat.org.
Baryte535 photos of Dolomite associated with Baryte on mindat.org.
Cinnabar395 photos of Dolomite associated with Cinnabar on mindat.org.
Marcasite353 photos of Dolomite associated with Marcasite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

5.AB.05CalciteCaCO3Trig. 3m (3 2/m) : R3c
5.AB.05GaspéiteNi(CO3)Hex.
5.AB.05MagnesiteMgCO3Trig. 3m (3 2/m) : R3c
5.AB.05OtaviteCdCO3Trig. 3m (3 2/m)
5.AB.05RhodochrositeMnCO3Trig. 3m (3 2/m) : R3c
5.AB.05SideriteFeCO3Trig. 3m (3 2/m) : R3c
5.AB.05SmithsoniteZnCO3Trig. 3m (3 2/m) : R3c
5.AB.05SpherocobaltiteCoCO3Trig. 3m (3 2/m) : R3c
5.AB.10AnkeriteCa(Fe2+,Mg)(CO3)2Trig. 3 : R3
5.AB.10KutnohoriteCa(Mn,Mg,Fe)(CO3)2Trig. 3 : R3
5.AB.10MinrecorditeCaZn(CO3)2Trig. 3 : R3
5.AB.15AragoniteCaCO3Orth. mmm (2/m 2/m 2/m)
5.AB.15CerussitePbCO3Orth. mmm (2/m 2/m 2/m)
5.AB.15StrontianiteSrCO3Orth. mmm (2/m 2/m 2/m)
5.AB.15WitheriteBaCO3Orth. mmm (2/m 2/m 2/m)
5.AB.20VateriteCaCO3Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
5.AB.25HuntiteCaMg3(CO3)4Trig. 3 2 : R3 2
5.AB.30NorsethiteBaMg(CO3)2Trig. 3 2 : R3 2
5.AB.35AlstoniteBaCa(CO3)2Tric.
5.AB.40OlekminskiteSr(Sr,Ca,Ba)(CO3)2Trig.
5.AB.40ParalstoniteBaCa(CO3)2Trig.
5.AB.45BarytocalciteBaCa(CO3)2Mon. 2/m : P21/m
5.AB.50Carbocernaite(Ca,Na)(Sr,Ce,Ba)(CO3)2Orth. mm2
5.AB.55BenstoniteBa6Ca6Mg(CO3)13Trig. 3 : R3
5.AB.60JuangodoyiteNa2Cu(CO3)2Mon. 2/m : P21/b

Related Minerals - Dana Grouping (8th Ed.)Hide

14.2.1.2AnkeriteCa(Fe2+,Mg)(CO3)2Trig. 3 : R3
14.2.1.3KutnohoriteCa(Mn,Mg,Fe)(CO3)2Trig. 3 : R3
14.2.1.4MinrecorditeCaZn(CO3)2Trig. 3 : R3

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

11.4.1CalciteCaCO3Trig. 3m (3 2/m) : R3c
11.4.2AragoniteCaCO3Orth. mmm (2/m 2/m 2/m)
11.4.3VateriteCaCO3Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
11.4.4MonohydrocalciteCaCO3 · H2OTrig. 3 : P31
11.4.5IkaiteCaCO3 · 6H2OMon.
11.4.7HuntiteCaMg3(CO3)4Trig. 3 2 : R3 2
11.4.8SergeeviteCa2Mg11(CO3)9(HCO3)4(OH)4•6H2O

Fluorescence of DolomiteHide

Some types fluoresce white, blue white, creamy yellow, etc. in either SW or LW UV. Manganoan varieties may fluoresce pale pink through intense red, but weaker in long wave.

Other InformationHide

Notes:
Very slowly dissolved in cold acids. Powder readily dissolves in warm acids with effervescence.

May exhibit triboluminescence.

Dolomite and ferroan dolomite occur frequently as pseudomorphs after calcite and also after aragonite. Rarely pseudomorphic after cerussite, baryte and fluorite.

Several species have been recognized as incrustation or substitution pseudomorphs after dolomite crystals. These include siderite, calcite, smithsonite, quartz, talc, limonite; and more rarely, hematite, pyrite, malachite, azurite, magnetite, cinnabar, sphalerite, pyrolusite, marcasite and serpentine.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Industrial Uses:
A major source of magnesium, particularly for agricultural and pharmaceutical applications.

Dolomite in petrologyHide

References for DolomiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Saussure (1792) Journal phys.: 40: 161 (as Dolomie).
Delamétherie, J.C. (1792) New Edition of Mongez’s Sciagraphie (French translation of Bergmann’s Sciagraphia, with additions). 2 volumes, Paris: 1: 207 (as Spath magnésien).
Kirwan, R. (1794) Elements of Mineralogy, second edition: 1: 111 (as Dolomite).
Klaproth, M.H. (1802) Beiträge zur chemischen Kenntniss der Mineralkörper, vol. 3: 3: 292 (as Miemit).
Wollaston (1812) Royal Society of London, Philosophical Transactions: 159.
Hausmann, J.F.L. (1813) Handbuch der Mineralogie 3 volumes, Göttingen. Second edition: 960 (as Bitterkalk).
Gibbs (1847) Annalen der Physik, Halle, Leipzig: 71: 361.
Sella (1856) Studii sulla min. Sarda, Torino.
Bořický (1876) Mineralogische und petrographische Mitteilungen, Vienna: 47.
Tschermak (1881) Mineralogische und petrographische Mitteilungen, Vienna: 4: 102, 109.
Tschermak (1882) Mineralogische und petrographische Mitteilungen, Vienna: 4: 111.
Becke (1889) Mineralogische und petrographische Mitteilungen, Vienna: 10: 138.
Becke (1890) Mineralogische und petrographische Mitteilungen, Vienna: 11: 224.
Eisenhuth (1902) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 35: 582.
Johnsen (1902) Neues Jahrbuch für Mineralogie, Geologie und Paleontologie, Heidelberg, Stuttgart: II: 133.
Mügge (1903) Jb. Min., Beil.-Bd.: 16: 374.
Doelter, C. (1911) Handbuch der Mineral-chemie (in 4 volumes divided into parts): 1: 360.
Rinne (1914) Centralblatt für Mineralogie, Geologie und Paleontologie, Stuttgart: 705.
Goldschmidt, V. (1916) Atlas der Krystallformen. 9 volumes, atlas, and text: vol. 3: 65.
Ford (1917) Trans. Conn. Ac. Arts Sc.: 22: 213.
Honess (1917) American Mineralogist: 2: 57.
Koller (1918) Neues Jahrbuch für Mineralogie, Geologie und Paleontologie, Heidelberg, Stuttgart, Beil.-Bd.: 42: 457.
Gaubert (1919) Bulletin de la Société française de Minéralogie: 42: 88.
Harding et al (1920) Chemical News and Journal of Industrial Science, London: 121: 50.
Niggli (1921) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 56: 230.
Garnett (1923) Mineralogical Magazine: 20: 54.
Mellor, J.W. (1923) A Comprehensive Treatise on Inorganic and Theoretical Chemistry. 16 volumes, London: 4: 372.
Mitchell (1923) Journal of the Chemical Society, London: 123: 1055.
Ungemach (1923) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 58: 161.
Bäckström (1924) Journal of the Chemical Society, London: 125: 430.
Wyckoff and Merwin (1924) American Journal of Science: 8: 447.
de Klerk and Goldschmidt (1925) Mineralogische und petrographische Mitteilungen, Vienna: 38: 159.
Eitel (1925) Jb. Min., Beil.-Bd.: 51: 477.
Garrabos (1926) Bulletin de la Société française de Minéralogie: 49: 110.
Rocza (1926) Zentralblatt Mineralien: 229.
Strobentz (1926) Földtani Közlöny, Budapest (Magyarhone Földtani Torsulat): 55: 49.
Zsivny (1926) Ann. Hist.-Nat. Mus. Nat. Hungar.: 24: 423.
Hintze, Carl (1927) Handbuch der Mineralogie. Berlin and Leipzig. 6 volumes: 1[3A]: 3333.
Zsivny (1927) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 65: 728.
Kani (1928) Journal of the Geological Society of Tokyo: 35: 279.
Halla (1930) Ak Wien, Sitzber.: 139: 683.
Onorato E. (1930) Sulla natura della dolomite. Periodico di Mineralogia - Roma pp. 216-220.
Vavrinecz (1932) Magyar Chemiai Folyóirat, Budapest: 38: 140.
Ulke (1933) American Mineralogist: 18: 312.
Koch and Zombory (1934) Földtani Közlöny, Budapest (Magyarhone Földtani Torsulat): 64: 160.
Tokody (1934) Magyar Tudom. Akad. Mat. Termeszett. Ertisitö, Budapest: 50: 650.
Du Rietz (1935) Geologiska Föeningens I Stockholm. Förhandlinger, Stockholm: 57: 133.
Hawkes and Smythe (1935) Mineralogical Magazine: 24: 65.
Koiké (1935) Journal of the Japanese Association of Min. Petr. Ec. Geol.: 14: 216.
Schoklitsch (1935) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 90: 433.
Tertsch (1935) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 92: 39.
Royer (1936) Comptes rendus de l’Académie des sciences de Paris: 202: 429.
Siegl (1936) Mineralogische und petrographische Mitteilungen, Vienna: 48: 288.
Koritnig, Ehrlich (1940) Zentralblatt Mineralien: 41.
Rodgers (1940) American Journal of Science: 238: 788.
Fairbairn, Hawkes (1941) American Journal of Science: 239: 617.
Smythe, Dunham (1947) Mineralogical Magazine: 28: 53.
Johansson (1948) Geologiska Föeningens I Stockholm. Förhandlinger, Stockholm: 70: 349.
Faust (1949) American Mineralogist: 34: 789.
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: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 208-217.
Goldsmith, J.R., Graf, D.L., Witters, J., Northrop, D.A. (1962) Studies in the system CaCO3•MgCO3•FeCO3: (1) Phase relations; (2) A method for major element spectrochemical analyses; and (3) Composition of some ferroan dolomites. Journal of Geology: 70: 659-688.
Van der Veen, A.H. (1965) Calcite-dolomite intergrowths in high-temperature carbonate rocks. American Mineralogist: 50: 2070-2077.
Peterson, M.N.A., Von der Borch, C.C., Bien, G.S. (1966) Growth of dolomite crystals. American Journal of Science: 264: 252-272.
Zeitschrift für Kristallographie: 156: 233-243.
Reeder, R., Dollase, W. (1989) Structural variation in the dolomite-ankerite solid-solution series: An X-ray, Mössbauer, and TEM study. American Mineralogist: 74: 1159-1167.
Ross, N.L., Reeder, R. (1992) High-pressure structural study of dolomite and ankerite. American Mineralogist: 77: 412-421.
Chai, L., Navrotsky, A., Reeder, R.J. (1995) Energetics of calcium-rich dolomite. Geochimica et Cosmochimica Acta: 59: 939-944.
Gaines, R.V., Skinner, H.C.W., Foord, E.E., Mason, B., Rosenzweig, A. (1997) Dana's New Mineralogy: The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana: 4.
Anthony, J.W., Bideaux, R.A., Bladh, K.W., Nichols, M.C. (2003) Handbook of Mineralogy, Volume V. Borates, Carbonates, Sulfates. Mineral Data Publishing, Tucson, AZ, 813pp.: 191.
Antao, S.M., Mulder, W.H., Hassan, S., Crichton, W.A., Parise, J.B. (2004) Cation disorder in dolomite, CaMg(CO3)2, and its influence on the aragonite + magnesite ↔ dolomite reaction boundary. American Mineralogist: 89: 1142-1147.
Drits, V.A., McCarty, D.K., Sakharov, B., Milliken, K.L. (2005) New insights into structural and compositional variability in some ancient excess-Ca dolomite. The Canadian Mineralogist: 43: 1255-1290.
Perchiazzi, N. (2015) Crystal structure study of a cobaltoan dolomite from Kolwezi, Democratic Republic of Congo. Acta Crystallographica: E71: i3.

Internet Links for DolomiteHide

Significant localities for DolomiteHide

Showing 19 significant localities out of 10,048 recorded on mindat.org.

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Austria
 
  • Styria
    • Fischbacher Alpen
      • St. Jakob-Breitenau
        • Hochlantsch
Landesmuseum Joanneum (Graz, Styria) collection; Kolitsch, U. & Gröbner, J. (2016): Cobaltit, Delafossit und Monazit-(Ce) vom Magnesitbergbau Breitenau am Hochlantsch. Der Steirische Mineralog 31, 50-51.
Bolivia
 
  • Cochabamba Department
    • Chapare Province
[MinRec 32:461]
Brazil
 
  • Minas Gerais
    • Iron Quadrangle
      • Nova Lima
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: 214; Rocks & Minerals: 63: 43.; Lobato, L.M., Ribeiro-Rodrigues, L.C., and Reis Vieira, F.W. (2001): Mineralium Deposita 36, 249-277
Canada
 
  • Nunavut
    • Baffin Island
      • Nanisivik
[MinRec 21:533]; Symons, D.T.A., Symons, T.B., and Sangster, T.F. (2000): Mineralium Deposita 35, 672-682.
France
 
  • Grand Est
    • Bas-Rhin
      • Bruche valley (Breuch valley)
        • Schirmeck
Alain Steinmetz and Thierry Brunsperger Collection
  • Nouvelle-Aquitaine
    • Corrèze
      • Uzerche
Michel TREILLARD (visual identification)
Ireland
 
  • Co. Sligo
    • Aughamore
Barry Flannery collection
    • Ballysadare
Dr Stephen Moreton
Peru
 
  • Ancash Department
    • Bolognesi Province
      • Huallanca District
        • Huallanca
Econ Geol (1985) 80:416-478
  • Lima Department
    • Huarochiri Province
      • Casapalca
Mineralogical Record (1997): 28(4).
Spain
 
  • Navarre
    • Esteríbar
      • Eugui
Calvo, M. and Sevillano, E. (1991). Famous mineral localities : the Eugui quarries Navarra Spain. Mineralogical Record. 22, 137-142.
  • Valencian Community
    • Valencia
      • Chelva
        • Domeño
[var: Teruelite] Casanova Honrubia, Juan Miguel & Canseco Caballé, Manuel, 2002, Minerales de la Comunidad Valenciana : 237 p. Ed. Caja de Ahorros del Mediterráneo. Alicante Calvo, M. (2012): Minerales y Minas de España. Vol. V, Carbonatos y Nitratos. Boratos. Escuela Técnica Superior de Ingenieros de Minas de Madrid - Fundación Gómez Pardo. 711 pp.
USA
 
  • Connecticut
    • Hartford Co.
      • New Britain
Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
  • Indiana
    • Harrison Co.
      • Corydon
T. Kennedy collection; Mineral News (1994) 10:8 pp4,8; Erd, R. C. and S.S. Greenburg (1960) Minerals of Indiana. Indiana Geological Survey Bulletin 18 73pp; Midwest Chapter Newsletter Volume 29 No.6:10
  • Kentucky
    • Hart Co.
      • Horse Cave
Visual Identification by Mike Polletta
  • New York
    • Onondaga Co.
      • Cicero
Rocks & Minerals (1007): 82: 472-483; Chamberlain, Steven C., Bailey, D.G., and Lyons, R. (2013),Analysis of a 1970s find of exceptional dolomite crystals in the Lockport Dolostone, Cicero, Onondaga County, New York, Contributed Papers in Specimen Mineralogy, 40th Rochester Mineralogical Symposium, Rochester, NY.
    • Putnam Co.
      • Town of Southeast
        • Brewster
(Dana, 1874) (Januzzi, 1966, 1989, pers. comm.) (Manchester, 1931) (Trainer, 1938) (Whitlock, 1903). 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: 214.
  • Pennsylvania
    • Lancaster Co.
      • Manheim Township
J. Wingard, Personal Observation 3-27-04
  • Rhode Island
    • Providence Co.
      • Lincoln
        • Lime Rock
Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston; Rocks & Min.: 17:51; 20:463-464.
Mineral and/or Locality  
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