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Scholzite

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About ScholziteHide

Dr. Adolf Scholz
Formula:
CaZn2(PO4)2 · 2H2O
Colour:
White or colourless
Lustre:
Vitreous, Sub-Vitreous
Hardness:
3 - 3½
Specific Gravity:
3.11 - 3.13
Crystal System:
Orthorhombic
Name:
Named in 1949 by Hugo Strunz in honor of Adolph Scholz [1894-1950], chemist and mineral collector of Regensburg, Germany. The formula was revised by Strunz and Tennyson in 1956.
Dimorph of:
Often contains thin lamellae of its dimorph parascholzite.
Chemically related to skorpionite.


Classification of ScholziteHide

Approved, 'Grandfathered' (first described prior to 1959)
8.CA.45

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
A : With small and large/medium cations
40.2.6.1

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2 : AB2(XO4)2·xH2O
19.6.7

19 : Phosphates
6 : Phosphates of Zn

Physical Properties of ScholziteHide

Vitreous, Sub-Vitreous
Transparency:
Transparent, Translucent
Colour:
White or colourless
Streak:
White
Hardness:
3 - 3½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Imperfect/Fair
{100}
Density:
3.11 - 3.13 g/cm3 (Measured)    3.10 g/cm3 (Calculated)

Optical Data of ScholziteHide

Type:
Biaxial (+)
RI values:
nα = 1.581 - 1.585 nβ = 1.586 - 1.587 nγ = 1.596 - 1.599
2V:
Measured: 33° to 70°, Calculated: 34° to 71°
Birefringence:
0.015
Max Birefringence:
δ = 0.015
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r < v moderate; also r>v
Optical Extinction:
Parallel
Pleochroism:
Non-pleochroic

Chemical Properties of ScholziteHide

Formula:
CaZn2(PO4)2 · 2H2O

Crystallography of ScholziteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pbcm
Cell Parameters:
a = 17.14 Å, b = 22.19 Å, c = 6.61 Å
Ratio:
a:b:c = 0.772 : 1 : 0.298
Unit Cell V:
2,514.02 ų (Calculated from Unit Cell)
Z:
12
Morphology:
Bladed crystals, also elongated to acicular
Comment:
Could be Pbc21

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
8.55 (100)
4.53 (30)
4.300 (60)
3.404 (40)
3.182 (30)
2.805 (70)
1.909 (40)

Type Occurrence of ScholziteHide

Other Language Names for ScholziteHide

German:Scholzit
Simplified Chinese:磷钙锌矿
Spanish:Scholzita

Common AssociatesHide

CollinsiteCa2Mg(PO4)2 · 2H2O
MuscoviteKAl2(AlSi3O10)(OH)2
ParascholziteCaZn2(PO4)2 · 2H2O
SphaleriteZnS
Associated Minerals Based on Photo Data:
Collinsite8 photos of Scholzite associated with Collinsite on mindat.org.
Hillite8 photos of Scholzite associated with Hillite on mindat.org.
Cryptomelane7 photos of Scholzite associated with Cryptomelane on mindat.org.
Parahopeite4 photos of Scholzite associated with Parahopeite on mindat.org.
Phosphophyllite4 photos of Scholzite associated with Phosphophyllite on mindat.org.
Kingsmountite3 photos of Scholzite associated with Kingsmountite on mindat.org.
Keckite3 photos of Scholzite associated with Keckite on mindat.org.
Parascholzite3 photos of Scholzite associated with Parascholzite on mindat.org.
Chalcophanite3 photos of Scholzite associated with Chalcophanite on mindat.org.
Metaswitzerite3 photos of Scholzite associated with Metaswitzerite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.CA.DavidlloyditeZn3(AsO4)2·4H2O Tric. 1 : P1
8.CA.ApexiteNaMg(PO4)·9H2OTric. 1 : P1
8.CA.05FransoletiteCa3Be2(PO4)2(HPO4)2 · 4H2OMon.
8.CA.05ParafransoletiteCa3Be2(PO4)2(HPO4)2 · 4H2OTric. 1 : P1
8.CA.10EhrleiteCa4Be3Zn2(PO4)6 · 9H2OTric. 1 : P1
8.CA.15FaheyiteBe2Mn2+Fe3+2(PO4)4 · 6H2OTrig. 3 2 : P31 2 1
8.CA.20GainesiteNa(Na,K)(Be,Li)Zr2(PO4)4 · 1.5-2H2OTet. 4mm : I41md
8.CA.20MccrillisiteNaCs(Be,Li)Zr2(PO4)4 · 1-2H2OTet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.CA.20SelwyniteNaK(Be,Al)Zr2(PO4)4 · 2H2OTet.
8.CA.25PahasapaiteLi8(Ca,Li,K)10.5Be24(PO4)24 · 38H2OIso. 2 3 : I2 3
8.CA.30HopeiteZn3(PO4)2 · 4H2OOrth. mmm (2/m 2/m 2/m) : Pnma
8.CA.30ArsenohopeiteZn3(AsO4)2 · 4H2OOrth. mmm (2/m 2/m 2/m) : Pnma
8.CA.35WarikahniteZn3(AsO4)2 · 2H2OTric.
8.CA.40PhosphophylliteZn2Fe(PO4)2 · 4H2OMon. 2/m : P21/b
8.CA.45ParascholziteCaZn2(PO4)2 · 2H2OMon.
8.CA.50KeyiteCu2+3Zn4Cd2(AsO4)6 · 2H2OMon. 2/m
8.CA.55PushcharovskiteK0.6Cu18(AsO4)(HAsO4)10(H2AsO4)4(OH)9.6·18.6H2OTric.
8.CA.60ProsperiteCa2Zn4(AsO4)4 · H2OMon.
8.CA.65GengenbachiteKFe3+3(HPO4)4(H2PO4)2 · 6H2OTrig. 3m : P3 1c
8.CA.70ParahopeiteZn3(PO4)2 · 4H2OTric. 1 : P1

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

19.6.1TarbuttiteZn2(PO4)(OH)Tric. 1 : P1
19.6.2SpenceriteZn4(PO4)2(OH)2 · 3H2OMon. 2/m : P2/b
19.6.3HopeiteZn3(PO4)2 · 4H2OOrth. mmm (2/m 2/m 2/m) : Pnma
19.6.4ParahopeiteZn3(PO4)2 · 4H2OTric. 1 : P1
19.6.5Veszelyite(Cu,Zn)2Zn(PO4)2 · 2H2OMon. 2/m : P21/b
19.6.6Kipushite(Cu,Zn)5Zn(PO4)2(OH)6 · H2OMon.
19.6.8ParascholziteCaZn2(PO4)2 · 2H2OMon.
19.6.9EhrleiteCa4Be3Zn2(PO4)6 · 9H2OTric. 1 : P1
19.6.10Faustite(Zn,Cu)Al6(PO4)4(OH)8 · 4H2OTric. 1 : P1
19.6.11Aheylite(Fe2+,Zn)Al6(PO4)4(OH)8 · 4H2OTric. 1 : P1
19.6.12JungiteCa2Zn4Fe3+8(PO4)9(OH)9 · 16H2OOrth.
19.6.13SchooneriteZnMn2+Fe2+2Fe3+(PO4)3(OH)2 · 9H2OOrth. mmm (2/m 2/m 2/m) : Pbam
19.6.14PhosphophylliteZn2Fe(PO4)2 · 4H2OMon. 2/m : P21/b

Fluorescence of ScholziteHide

Not fluorescent in UV

Other InformationHide

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

References for ScholziteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1951) 36: 382.
Strunz, H. and Tennyson, C. (1956) Zeitschrift fuer Kristallographie, v. 107, p. 318.
American Mineralogist (1961) 46: 1519.
American Mineralogist (1981) 66: 843-851.
Zeitschrift für Kristallographie (1992) 198: 239.

Internet Links for ScholziteHide

Localities for ScholziteHide

ⓘ - 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.
Australia
 
  • New South Wales
    • Yancowinna Co.
      • Broken Hill district
No reference listed
Australian Min. 3:1 (1997)
  • South Australia
    • Flinders Ranges
      • North Flinders Ranges
        • Leigh Creek
          • Puttapa
Museum Victoria collection(?)
      • South Flinders Ranges
        • Martins Well
Johnston, C.W . & Hill, R.J. (1978): Zinc phosphates at Reaphook Hill South Australia. Mineralogical Record 9,(1), 20-24; SA Geodata Database - Mineral Deposit Details Deposit Number: 3220
Belgium
 
  • Liège Province
    • Visé
1./ A.M. Fransolet, J Jedwab and R. Van Tassel, 1974, Inventaire minéralogique de Richelles, Belgique, Annales de la Société Géologique de Belgique, Tome 27, pp. 23-26.; R. Van Tassel, A.-M. Fransolet and K. Abraham (1979) Drugmanite, Pb2(Fe3+,Al)(PO4)2(OH) · H2O, a New Mineral from Richelle, Belgium. Mineralogical Magazine 1979 43:463-467
China
 
Lairen Lai and Nicheng Shi (1984): Acta Petrologica Mineralogica et Analytica 3(1), 40-46
Czech Republic
 
  • Plzeň Region
    • Poběžovice (Ronsperg; Ronsberg; Ronsperk)
      • Otov
Čech F., Staněk J., Dávidová Š. (1981): Minerály pegmatitů. - in: Bernard J.H. [ed.]: Mineralogie Československa. Academia, Praha.
Germany (TL)
 
  • Bavaria
    • Upper Palatinate
      • Waidhaus
        • Hagendorf
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
Fortschr.Mineral.(1948) 27, 31; http://www.berthold-weber.de/h_miner.htm
  • Lower Saxony
    • Harz
      • Goslar
        • Rammelsberg
No reference listed
  • North Rhine-Westphalia
    • Sauerland
      • Iserlohn
        • Letmathe
Bender, D. and Krimmelbein, W. (1994) Aktuelle Übersicht: Mineralien der Zinkhütte Genna/Sauerland. Stand Juni 1994. Mineralien-Welt, 4/94, 10.
Italy
 
  • Sardinia
    • South Sardinia Province
      • Sarrabus-Gerrei
        • Gerrei
          • Villaputzu
Namibia
 
  • Karas Region
    • Lüderitz District
      • Rosh Pinah
Jahn, S. (2007): Tarbuttit von der Skorpion Zink Mine, Namibia. Mineralien-Welt 18 (4), 56-66. (in German); Borg, G., Karner, K., Buxton, M., Armstrong, R., Schalk van der Merwe, W. (2003): Geology of the Skorpion supergene zinc deposit, southern Namibia. Economic Geology, 98, 749-771
Spain
 
  • Castile and Leon
    • Salamanca
      • Golpejas-Vega de Tirados
        • Golpejas Mining group
Calvo, M. (2015): Minerales y Minas de España. Vol. VII, Fosfatos, arseniatos y vanadatos. Escuela Técnica Superior de Ingenieros de Minas de Madrid - Fundación Gómez Pardo. 479 pp
USA
 
  • Arizona
    • Mohave Co.
      • Cleopatra District
        • Kimble Sub-District
          • Rawhide Wash
Jerry A. Baird
  • Nevada
    • Elko Co.
      • Snowstorm Mountains District
Photos in mindat galleries. Material collected 2007 by Jim McGlasson.
    • Lander Co.
      • North Battle Mountain District
NBMG Spec. Pub. 31 Minerals of Nevada
  • North Carolina
    • Cleveland Co.
      • Kings Mountain District
EDS-SEM. New Orleans University. 12/02
  • South Dakota
    • Custer Co.
      • Custer District
        • Fourmile
Mineralogical Record: 17: 237-254; Rocks & Minerals: 60: 117.
  • Virginia
    • Alleghany Co.
      • Clifton Forge Iron District
Minerals of Virginia 1990 by R. V. Dietrich
Zambia
 
  • Central Province
    • Kabwe District
      • Kabwe (Broken Hill)
[MinRec 11:339]
Mineral and/or Locality  
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