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Hydroxylherderite

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Big Photo

Araçuaí (Arassuaí), Jequitinhonha valley, Minas Gerais, Brazil
© Rob Lavinsky

Show Hydroxylherderite Photos (221)



Formula:
CaBe(PO
 
4
)(OH,F)
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 hydroxide 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)
1.996 (20)
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(PO
 
4
)(OH,F)
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+
 
BePO
 
4
(OH,F)
8.BA.10Bergslagite
CaBeAsO
 
4
(OH)
8.BA.10Herderite
CaBePO
 
4
(F,OH)
8.BA.15Babefphite
BaBePO
 
4
(F,OH)
Related Minerals - Hey's Index Grouping:

- +
19.3.1Moraesite
Be
 
2
(PO
 
4
)(OH) · 4H
 
2
O
19.3.2Beryllonite
NaBePO
 
4
19.3.3Hurlbutite
CaBe
 
2
(PO
 
4
)
 
2
19.3.5Glucine
CaBe
 
4
(PO
 
4
)
 
2
(OH)
 
4
 · 0.5H
 
2
O
19.3.6Fransoletite
Ca
 
3
Be
 
2
(PO
 
4
)
 
2
(HPO
 
4
)
 
2
 · 4H
 
2
O
19.3.7Uralolite
Ca
 
2
Be
 
4
(PO
 
4
)
 
3
(OH)
 
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
(PO
 
4
)
 
6
(OH)
 
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+
5
Be
 
4
(PO
 
4
)
 
6
(OH)
 
4
 · 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
(PO
 
4
)(OH)
19.3.16Althausite
Mg
 
2
(PO
 
4
)(OH,F)
19.3.17Newberyite
Mg(HPO
 
4
) · 3H
 
2
O
19.3.18Phosphorrösslerite
Mg(HPO
 
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
)Mg(PO
 
4
) · H
 
2
O
19.3.23Struvite
(NH
 
4
)Mg(PO
 
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
Simplified Chinese:羟磷铍钙石
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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  • Hydroxylherderite details from Handbook of Mineralogy (PDF)
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    • Localities for Hydroxylherderite

    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
     
    • Konar Province (Kunar Province; Konarh Province; Konarha Province; Nuristan)
      • Chapa Dara District
    		various added photos
    • Nuristan Province (Nurestan Province; Nooristan Province; Nuristan)
      • Kamdesh District
    		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); Brandstetter, G. & M. Reich (1998): Luftenberg - eine bedeutende Pegmatitmineralisation in Oberösterreich. OÖ. Geonachr. 13, 11-25
    Brazil
     
    • Minas Gerais
      • Doce valley
        • Conselheiro Pena
    		Canadian Mlneralogist Vol. 20, pp. 87-89 (1982)
          • Ferruginha
    		Mineralogical Record (2009) 40:273-292
        • Divino das Laranjeiras
          • Linópolis
    		Leavens, P. et al, Compositional and Refractive Index Variations of the Herderite-Hydroxyl-herderite Series, Am Min v63, p 913-917 (1978)
    Roberto Bosi collection
    [MinRec 14:235]
        • Galiléia
          • Laranjeiras
    		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
    Luis Menezes
        • Itambacuri
    		Tom Loomis
    [www.johnbetts-fineminerals.com]
      • Jequitinhonha valley
    		Van King
        • 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
    Rock Currier
    Rock Currier
    • Paraíba
      • Borborema mineral province
        • Frei Martinho
    		[Clark, 1993 - "Hey's Mineral Index"]
    Canada
     
    • Manitoba
    		Canadian Mineralogist: 40: 1339-1345.
    China
     
    • Jiangxi Province
      • Yichun Prefecture
        • Yuanzhou District
          • Yichun complex (Yashan batholith)
    		Xiaolong Huang, Rucheng Wang, Xiaoming Chen, and Changshi Liu (2001): Geological Review 47(5), 449-458; Xudong Che, Rucheng Wang, Huan Hu, Wenlan Zhang, and Xiaolong Huang (2007): Acta Petrologica Sinica 23(6), 1552-1560
    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
    Germany
     
    • Bavaria
      • Franconia
        • Fichtelgebirge
          • Weißenstadt
            • Kirchenlamitz
    		Leavens, P., Dunn, P., and Gaines, R., 1978, Compositional and Refractive Index Variations of the Herderite-Hydroxylherderite Series, American Mineralogist, 63:913-917.
    Italy
     
    • Piedmont
      • Verbano-Cusio-Ossola Province
        • Baveno
          • Oltrefiume
            • Mount Camoscio
    		American Mineralogist, 84(5-6), 782-789
    Japan
     
    • Honshu Island
      • Kanto Region
        • Ibaraki Prefecture
          • Kasumigaura City
            • 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
     
    • Eastern Kazakhstan Province (Shyghys Qazaqstan Oblysy; Vostochno-Kazakhstanskaya 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.
      • Usakos and Omaruru Districts
    		various added photos
    Pakistan
     
    • Gilgit-Baltistan (Northern Areas)
      • Astor District (Astore District)
        • Astor valley (Astore valley)
    		various correctly added photos
      • 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
            • Ho Nala
    		Dudley Blauwat specimen
    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.
          • Haramosh Mts.
    		various added photos
    various added photos
    Herb Obodda
          • 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.
        • Hunza Valley
    		various added photos
    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
      • Sátão
    		Pedro Alves collection
    Russia
     
    • Urals Region
      • Southern Urals
        • Chelyabinsk Oblast'
          • Plast
            • Kochkar' District
              • Svetlyi
    		Igor Savin's data
    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
    		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.
        • Jacumba District
          • Jacumba
            • Tule Mountain (Mount Tule; Tulley Mountain)
    		various added photos
    various added photos
        • Warner Springs District
          • Chihuahua Valley
    		Cordova, E. M. 2004. Visual study of a pale grayish yellow to colorless crystal measuring 10x8x7mm, including comparative analysis of similar regional occurrences.
    Mark Mauthner visual identification
          • Warner Springs
    		Van King (2009)
    • Connecticut
      • Middlesex Co.
        • East Hampton
    		Schooner (1958); Januzzi (1994); Harold Moritz collection
    • Maine
      • Androscoggin Co.
        • Auburn
          • East Mount Apatite District
    		No reference listed
    "Maine Mineral Localities, 3rd Ed." by Thompson, W.B., et.al., 1998; USGS Bull 445
          • West Mount Apatite District
    		USGS Bull 445
    No reference listed
        • Poland
    		King, V. T. and Foord, E. E., 1994, Mineralogy of Maine, Descriptive Mineralogy, volume 1, Maine Geological Survey, Augusta, Maine, USA, pp. 418 + 88 plates.
      • Cumberland Co.
        • Baldwin
    		Thompson, W.B., et,al., 2000, Rocks & Minerals, vol. 75, no. 6, pgs 408-418
      • 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
    Mineral News (1993) 9:2 p. 8; Mineralogical Record (1973) 4:103-130
    No reference listed
          • Uncle Tom Mountain
    		Mineral News (1999) 15:6 pp8-10; Mineral News (1994) 10:12 pp1,2; Mineral News (1991) 7:3 pp6,7,10
    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.; USGS Bull 445
        • 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; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
        • Groton
    		Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
    American Mineralogist: 63: 913-917.
    Am Min 63:913-917
        • Orange
    		Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
      • Strafford Co.
        • Strafford
          • Parker Mountain
    		Rocks & Min. 80:256 (2005); Rocks & Minerals 80:4 pp234-241
    • North Carolina
      • Cleveland Co.
        • Kings Mountain District
    		Rocks & Minerals: 60: 65, 76-83.; Rocks and Minerals, (1985) 60:76-82
      • 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
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