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Hydroxylherderite

Big Photo

Araçuaí, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil
© Rob Lavinsky

Show Hydroxylherderite Photos (117)
Formula:
CaBe[(OH,F)|PO
 
4
]
System:MonoclinicColour:Colorless, gray, brown, ...
Hardness:5 - 5½
Name:For Siegmund August Wolfgang von Herder (1776-1838), Mining official in Freiberg, Germany, and the "Hydroxyl-" prefix for the dominance of hydroxyl ions over Fluorine.


Herderite-Hydroxylherderite Series. The hydroxyl-dominant analogue of Herderite. Hydroxylherderite is isotypic with Datolite.

Found usually as a pegmatite mineral formed during late stage hydrothermal deposition.

Warning: Most specimens labelled "herderite" are in fact hydroxylherderite, i.e., OH-dominant members of the solid-solution series.

Classification of Hydroxylherderite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:7/B.01-20
Nickel-Strunz 10th (pending) edition ID:8.BA.10

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
A : With small and medium-sized cations
Dana 8th edition ID:41.5.4.2

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)2(XO4)Zq
Hey's CIM Ref.:19.3.4

19 : Phosphates
3 : Phosphates of Be and Mg
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Occurrences of Hydroxylherderite

Geological Setting:Late stage mineral in miarolitic cavities in complex granitic pegmatites, alteration of beryl or beryllonite, hydrothermal.

Physical Properties of Hydroxylherderite

Lustre:Sub-Vitreous, Resinous, Waxy, Greasy
Diaphaneity (Transparency):Transparent, Translucent
Colour:Colorless, gray, brown, pale yellow, greenish white, light blue, purple; colourless in transmitted light.
Comment:May be blue-green or blue in daylight, lavender or light violet in incandescent light
Streak:white
Hardness (Mohs):5 - 5½
Hardness Data:Measured
Tenacity:Brittle
Cleavage:Poor/Indistinct
On {110}, interrupted.
Fracture:Irregular/Uneven
Density (measured):2.95 g/cm3
Density (calculated):3.00(2) g/cm3

Crystallography of Hydroxylherderite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:P21/b {P1 1 21/b} {P21/c} {P1 21/c 1} {P21/a}
Cell Parameters:a = 9.789(2) Å, b = 7.661(1) Å, c = 4.804(1) Å
β = 90.02°
Ratio:a:b:c = 1.278 : 1 : 0.627
Unit Cell Volume:V 360.27 ų (Calculated from Unit Cell)
Z:4
Morphology:Stout prismatic crystals [100] or [001]; thick tabular {001}. Commonly pseudo-orthorhombic in aspect, rarely monoclinic; pseudo-hexagonal [001] at times. Also occurs as botryoidal or spheroidal aggregates with a radial-fibrous structure.
Twinning:On {100} or {001} as fishtail contact. Most crystals are twinned; however, some exhibit no outward signs of this morphology.
X-Ray Powder Diffraction:
d-spacingIntensity
3.76 (20)
3.43 (30)
3.14 (10)
3.00 (30)
2.87 (40)
2.55 (20)
2.21 (30)
Comments:Am Min 59:919 (1974)

Optical Data of Hydroxylherderite

Type:Biaxial (-)
RI values: nα = 1.589 - 1.615 nβ = 1.610 - 1.634 nγ = 1.619 - 1.643
2V:Measured: 70° to 77°, Calculated: 64°
Birefringence:0.028-0.030
Maximum Birefringence:δ = 0.030

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

Chemical Properties of Hydroxylherderite

Formula:
CaBe[(OH,F)|PO
 
4
]
Essential elements:Be, Ca, H, O, P
All elements listed in formula:Be, Ca, F, H, O, P

Relationship of Hydroxylherderite to other Species

Series:Forms a series with Herderite (see here)
Common Associates:
TopazQuartzMuscoviteMuscoviteMicrocline
ElbaiteCassiteriteAlbite
Related Minerals - Nickel-Strunz Grouping):

- +
8.BA.05Väyrynenite
Mn
2+
 
Be[(OH,F)|PO
 
4
]
8.BA.10Bergslagite
CaBe[OH|AsO
 
4
]
8.BA.10Herderite
CaBe[(F,OH)|PO
 
4
]
8.BA.15Babefphite
BaBe[(F,OH)|PO
 
4
]
Related Minerals - Hey's Index Grouping:

- +
19.3.1Moraesite
Be
 
2
[OH|PO
 
4
] · 4H
 
2
O
19.3.2Beryllonite
NaBe[PO
 
4
]
19.3.3Hurlbutite
CaBe
 
2
[PO
 
4
]
 
2
19.3.5Glucine
CaBe
 
4
[(OH)
 
2
|PO
 
4
]
 
2
 · 0.5H
 
2
O
19.3.6Fransoletite
Ca
 
3
Be
 
2
[HPO
 
4
|PO
 
4
]
 
2
 · 4H
 
2
O
19.3.7Uralolite
Ca
 
2
Be
 
4
[OH|PO
 
4
]
 
3
 · 5H
 
2
O
19.3.9Pahasapaite
Li
 
8
(Ca,Li,K)
 
10.5
Be
 
24
(PO
 
4
)
 
24
·38H
 
2
O
19.3.10Tiptopite
K
 
2
(Na,Ca)
 
2
Li
 
3
Be
 
6
[OH|(PO
 
4
)
 
3
]
 
2
 · H
 
2
O
19.3.11Gainesite
Na(Na,K)(Be,Li)Zr
 
2
[PO
 
4
]
 
4
 · 1.5-2H
 
2
O
19.3.12Roscherite
Ca
 
2
(Mn
2+
 
,Fe
2+
 
)
 
5
Be
 
4
[(OH)
 
4
|(PO
 
4
)
 
6
] · 6H
 
2
O
19.3.13Faheyite
(Mn,Mg,Na)Be
 
2
Fe
 
2
(PO
 
4
)
 
4
·6H
 
2
O
19.3.14Farringtonite
Mg
 
3
[PO
 
4
]
 
2
19.3.15Holtedahlite
Mg
 
2
[OH|PO
 
4
]
19.3.16Althausite
Mg
 
2
[(OH,F)|PO
 
4
]
19.3.17Newberyite
MgHPO
 
4
·3H
 
2
O
19.3.18Phosphorrösslerite
MgHPO
 
4
·7H
 
2
O
19.3.19Bobierrite
Mg
 
3
(PO
 
4
)
 
2
·8H
 
2
O
19.3.20Barićite
(Mg,Fe)
 
3
(PO
 
4
)
 
2
·8H
 
2
O
19.3.21Panethite
(Na,Ca)
 
2
(Mg,Fe
2+
 
)
 
2
[PO
 
4
]
 
2
19.3.22Dittmarite
NH
 
4
MgPO
 
4
·H
 
2
O
19.3.23Struvite
NH
 
4
MgPO
 
4
·6H
 
2
O
19.3.24Hannayite
(NH
 
4
)
 
2
Mg
 
3
H
 
4
(PO
 
4
)
 
4
·8H
 
2
O

Other Names for Hydroxylherderite

Synonyms:
Hydro-fluorherderiteHydro-herderite
Other Languages:
German:Hydroxylherderit
Spanish:Hydroxylherderita

Other Information

Fluorescence in UV light:Weak yellow under SW
Sometimes bright yellow-orange phosphorescence
Other Information:Soluble in acids.

An alteration product of Beryllonite at Newry, Maine, USA.
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 Hydroxylherderite

Reference List:Dana (1884) American Journal of Science: 27: 229.

Des Cloizeaux (1884) Bulletin de la Société française de Minéralogie: 7: 130.

Bertrand in: Des Cloizeaux (1886) Bulletin de la Société française de Minéralogie: 9: 141.

Penfield and Harper (1886) American Journal of Science: 32: 107.

Dana, E.S. (1892) System of Mineralogy, 6th. Edition, New York: 760.

Penfield (1894) American Journal of Science: 47: 329 (as Hydro-herderite and Hydro-fluorherderite).

Ford (1912) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 50: 97.

Goldschmidt, V. (1918) Atlas der Krystallformen. 9 volumes, atlas, and text: vol. 4: 127.

Palache, C. and Shannon (1928) American Mineralogist: 13: 394.

Hintze, Carl (1931) Handbuch der Mineralogie. Berlin and Leipzig. 6 volumes: 1 [4A]: 688.

Yatsevitch (1935) American Mineralogist: 20: 426.

Strunz (1936) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 93: 146.

Leavens, et al., 1978, Compositional and Refractive Index Variations of the Herderite-Hydroxyl-herderite Series, American Mineralogist, v 63, p. 913-917.

Mineralogical Record (1979): 10: 5.

Anthony, J.W., Bideaux, R.A., Bladh, K.W., and Nichols, M.C. (2000) Handbook of Mineralogy, Volume IV. Arsenates, Phosphates, Vanadates. Mineral Data Publishing, Tucson, AZ, 680pp.: 256.

Internet Links for Hydroxylherderite

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  • Raman and XRD data at RRUFF project
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    Localities for Hydroxylherderite

    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.
    (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
     
    • Konar (Kunar; Konarh; Konarha; Nuristan) Province
    		various added photos
    Austria
     
    • Carinthia
      • Koralpe Mts
        • Moschkogel Mt. - Weinebene area
          • Brandrücken
    		G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995
    • Upper Austria
      • Linz
        • St Georgen an der Gusen
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    Brazil
     
    • Northeast Region
      • Paraíba
        • Borborema mineral province
          • Frei Martinho
    		[Clark, 1993 - "Hey's Mineral Index"]
    Leavens, P. et al, Compositional and Refractive Index Variations of the Herderite-Hydroxyl-herderite Series, Am Min v63, p 913-917 (1978)
    • Southeast Region
      • Minas Gerais
        • Doce valley
          • Conselheiro Pena
    		Mineralogical Record (2009) 40:273-292
          • Divino das Laranjeiras
            • Linópolis
    		Leavens, P. et al, Compositional and efractive Index Variations of the Herderite-Hydroxyl-herderite Series, Am Min v63, p 913-917 (1978)
    [MinRec 14:235]
          • Galiléia
            • Laranjeiras
    		No reference listed
    Luiz Menezes
            • Sapucaia do Norte
    		Cassedanne, J.P. & Baptista, A. (1999): Famous Mineral Localities: The Sapucaia Pegmatite Minas Gerais, Brazil. Mineralogical Record, 30: 347-360 + 365
          • Governador Valadares
    		Am Min 59:919-925
    [www.johnbetts-fineminerals.com]
        • Jequitinhonha valley
          • Coronel Murta
    		[MinRecord 30:150]
          • Itinga
            • Taquaral
              • Piauí Valley
    		Pavel M. Kartashov analytical data
          • Virgem da Lapa
    		Rocks & Min.: 63: 45, 389.
    Pete J. Dunn, Min.Rec. Vol 10, No.4 p. 251
    Canada
     
    • Manitoba
    		Canadian Mineralogist: 40: 1339-1345.
    Czech Republic
     
    • Moravia (Mähren; Maehren)
      • Vysočina Region
        • Žďár nad Sázavou
    		Cempírek, J.: Hydroxylherderit z Rožné. Minerál, 2001, roč. 9, č. 5, s. 328-329
    P. Pauliš (2001): Nejzajímavější naleziště Moravy a Slezska. Kuttna, Kutná Hora.
    P. Pauliš (2001): Nejzajímavější naleziště Moravy a Slezska. Kuttna, Kutná Hora.
    France
     
    • Auvergne
      • Allier
        • Ébreuil
          • Échassières
    		G. Aubert : "Les coupoles granitiques de Montebras et d'Echassières (Massif Central Français) et la genèse de leur minéralisations (BRGM, 1969); Econ Geol (1995) 90:548-576
    Italy
     
    • Piedmont
      • Verbano-Cusio-Ossola Province
        • Baveno
          • Oltrefiume
            • Mount Camoscio
    		American Mineralogist, 84(5-6), 782-789
    Japan
     
    • Honshu Island
      • Kanto Region
        • Ibaraki Prefecture
          • Chiyoda-machi
    		Matsubara, S. & Miyawaki, R. (2006) Catalogue of Japanese Minerals (National Science Museum)
      • Tohoku Region
        • Fukushima Prefecture
    		Matsubara, S. & Miyawaki, R. (2006) Catalogue of Japanese Minerals (National Science Museum)
    Kazakhstan
     
    • Shyghys Qazaqstan Oblysy (Vostochno-Kazakhstanskaya [Eastern-Kazakhstan] Oblast')
      • Kalba Range
        • Irtysh River
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Mozambique
     
    • Zambezia Province
      • Alto Ligonha District
    		No reference listed
    Namibia
     
    • Erongo Region
      • Swakopmund District
        • Swakopmund
    		Mineralogical Record: 36(4): 317-335.
    Pakistan
     
    • Northern Areas
      • Baltistan
        • Skardu District
          • Braldu Valley
    		Baluwet, D., 2004. Pakistan: Minerals, Mountains and Majesty, Lapis International, 96 p.
    Dudley Blauwet, Bill Smith and Carol Smith (2004) Table of mineral localities of the northern areas of Pakistan and other selected sites. (in "Pakistan: Minerals, Mountains & Majesty", Lapis International, East Hampton, Connecticut)
    various added photos
    Blauwet, D., Smith, B., and Smith, C., 1997. A Guide to the Mineral Localities of the Northern Areas, Pakistan. Mineralogical Record 28(3), 183-200.
          • Shigar Valley
    		Kazmi et al, 1985, Gem pegmatites of the Shingas-Dusso area, Gilgit, Pakistan. Mineralogical Record 16:4
    Dudley Blauwet, Bill Smith and Carol Smith (2004) Table of mineral localities of the northern areas of Pakistan and other selected sites. (in "Pakistan: Minerals, Mountains & Majesty", Lapis International, East Hampton, Connecticut)
      • Gilgit District
        • Haramosh Mts.
    		Ref: Blauwet, D., Smith, B., and Smith, C., 1997. A Guide to the Mineral Locations of Northern Pakistan. Mineralogical Record 28(3), 183-200.
    Dudley Blauwet, Bill Smith and Carol Smith (2004) Table of mineral localities of the northern areas of Pakistan and other selected sites. (in "Pakistan: Minerals, Mountains & Majesty", Lapis International, East Hampton, Connecticut)
    Portugal
     
    • Viseu District
      • Penalva do Castelo
    		Nuno Afonso collection
    Spain
     
    • Galicia
      • Pontevedra
        • Forcarei
    		Fuertes-Fuente, M., Martin-Izard, A., Boiron, M.C., and Mangas, J. (2000): Mineralium Deposita 35, 332-345.
        • Lalín
    		Fuertes-Fuente, M., Martin-Izard, A., Boiron, M.C., and Mangas, J. (2000): Mineralium Deposita 35, 332-345.
    Sweden
     
    • Södermanland
      • Stockholm
        • Haninge
    		Nysten,P. & Gustafsson, L.(2006): I jakt på sällsynta mineral. Geologiskt forum nr 49, 22-25
    USA
     
    • California
      • Riverside Co.
        • Cooper Canyon District
    		Ordway, A. (2003) The Blue Chihuahua Mine. Where art thou? Bulletin of the Mineralogical Society of Southern California, January.
    Ordway, A. (2003) The Blue Chihuahua Mine. Where art thou? Bulletin of the Mineralogical Society of Southern California, January.
      • San Diego Co.
        • Warner Springs District
    		Cordova, E. M. 2004. Visual study of a pale grayish yellow to colorless crystal measuring 10x8x7mm, including comparative analysis of similar regional occurrences.
    • Connecticut
      • Middlesex Co.
        • East Hampton
    		Januzzi, R., 1976, Mineral Localities of Connecticut and Southeastern New York State.
    • Maine
      • Androscoggin Co.
        • Auburn
          • Mt. Apatite District
    		No reference listed
    No reference listed
    "Maine Mineral Localities, 3rd Ed." by Thompson, W.B., et.al., 1998
    No reference listed
        • Poland
    		American Mineralogist: 63: 913-917.
      • Cumberland Co.
        • Baldwin
    		No reference listed
      • Oxford Co.
        • Albany
    		"Maine Mineral Localities, 3rd Ed." by Thompson, W.B., et.al., 1998
    King, V. (ed.), 2009, Maine feldspar, Families, and Feuds
        • Buckfield
    		King, V. and Foord, E., 1994, Mineralogy of Maine;[MinRec 26:577]
        • Greenwood
    		No reference listed
    No reference listed
    No reference listed
          • Uncle Tom Mt
    		No reference listed
    King, V. and Foord, E., 1994, Mineralogy of Maine.
        • Hebron
    		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: 822.
        • Newry
    		King, V. and Foord, E., 1994, Mineralogy of Maine, V. 1; King, V. (ed.), 2000, Mineralogy of Maine, V. 2.
    King, V. and Foord, E., 1994, Mineralogy of Maine, V. 1; King, V. (ed.), 2000, Mineralogy of Maine, V. 2, with updates by Van King
    Am Min 63:913-917
    "Mineralogy of Maine, Vol. 1" by King, V.T. & Foord, E.E., Maine Geologic Survey, 1994
    King, V. and Foord, E., 1994, Mineralogy of Maine, V. 1; King, V. (ed), 2000, Mineralogy of Maine, V. 2
        • Norway
    		No reference listed
        • Paris
    		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: 822; American Mineralogist: 63: 913-917.
        • Peru
    		No reference listed
        • Rumford
    		"Maine Mineral Localities, 3rd Ed." by Thompson, W.B., et.al., 1998)
    Tim Blake and Scott Soucey specimens
        • Stoneham
    		Am Min 63:913-917
        • West Paris
    		No reference listed
      • Sagadahoc Co.
        • Topsham
    		No reference listed
    No reference listed
    • Massachusetts
      • Essex Co.
        • North Andover
    		Harvard Mineralogical Museum, Ex. Ed Grew collection
    • New Hampshire
      • Grafton Co.
        • Alexandria
    		Rocks & Min. 65:304
        • Groton
    		No reference listed
    American Mineralogist: 63: 913-917.
    Am Min 63:913-917
        • Orange
      • Strafford Co.
        • Strafford
          • Parker Mt
    		Rocks & Min. 80:256 (2005)
    • North Carolina
      • Cleveland Co.
        • Kings Mountain District
    		Rocks & Minerals: 60: 65, 76-83.
      • Gaston Co.
        • Bessemer City
    • South Dakota
      • Custer Co.
        • Custer District
          • Fourmile
    		Mineralogical Record: 17: 237-254; Rocks & Minerals: 60: 117.
    • Virginia
      • Amelia Co.
        • Amelia (Amelia Court House)
    		Minerals of Virginia, 1990 by R. V. Dietrich
    Mineral and/or Locality
    Google
     
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 28th Oct 2009 17:47:22