Scholzite Mineral Data

General Scholzite Information

Chemical Formula:

CaZn2(PO4)2•2(H2O)

Composition:

Molecular Weight = 396.83 gm

Calcium 10.10 % Ca 14.13 % CaO

Zinc 32.96 % Zn 41.02 % ZnO

Phosphorus 15.61 % P 35.77 % P₂O₅

Hydrogen 1.02 % H 9.08 % H₂O

Oxygen 40.32 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

CaZn₂(PO₄)₂•2(H₂O)

Environment:

Dimorphous with parascholzite.

IMA Status:

Valid Species (Pre-IMA) 1950

Locality:

Hagendorf, Bavaria, Germany. Link to MinDat.org Location Data.

Name Origin:

Named for Adolph Scholz (1894-1950), mineral collector and chemist, Regensburg, Germany.

Name Pronunciation:

Scholzite + Pronunciation

Synonym:

ICSD 4270

PDF 27-95

Scholzite Image

Images:

Scholzite

Comments: Sprays of Scholzite crystals to 1 cm line exposed vugs.
Location: Reaphook Hill, Blinman, South Australia. Scale: Picture size 1 cm.
© John Veevaert

Images:

Scholzite Hillite

Comments: Morphology of a homogeneous larger cluster of hillite growing on an acicular crystal of scholzite. SEM back-scattered electron image.
Location: Lower Cambrian Parachilna Formation, Reaphook Hill, South Australia, Australia. Scale: See Image.
© Canadian Mineralogist

Scholzite Crystallography

Axial Ratios:

a:b:c =0.7724:1:0.2978

Cell Dimensions:

a = 17.14, b = 22.19, c = 6.61, Z = 12; V = 2,514.03 Den(Calc)= 3.15

Crystal System:

Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pbmm

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 8.588(1), 2.788(0.9), 4.23(0.7),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
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Taxer K J , American Mineralogist , 60 (1975) p.1019-1022, Structural investigations on scholzite

View Additional jPOWD Structure files for Scholzite
[1] [2]

Physical Properties of Scholzite

Cleavage:

{100} Parting

Color:

Colorless, Gray white, White.

Density:

3.11

Diaphaneity:

Transparent to Translucent

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Hardness:

4 - Fluorite

Luminescence:

Non-fluorescent.

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Scholzite

Gladstone-Dale:

CI meas= 0.01 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.022 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1866,KPDmeas= 0.189,KC= 0.1908
Ncalc = 1.59 - 1.6

Optical Data:

Biaxial (+), a=1.581, b=1.586, g=1.596, bire=0.0150, 2V(Calc)=72, 2V(Meas)=70. Dispersion r > v.

Calculated Properties of Scholzite

Electron Density:

Bulk Density (Electron Density)=3.04 gm/cc
note: Specific Gravity of Scholzite =3.11 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_Scholzite= 18.16 barns/electron
U=PE_Scholzite x rElectron Density= 55.21 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Scholzite is Not Radioactive

Scholzite Classification

Dana Class:

40.02.06.01 (40)Hydrated Phosphates, etc

(40.02)where A++ (B++)2 (XO4) · x(H2O)

(40.02.06)Dana Group

40.02.06.01 Scholzite CaZn2(PO4)2•2(H2O) Pbmm 2/m 2/m 2/m

Strunz Class:

08.CA.45 08 - PHOSPHATES, ARSENATES, VANADATES

08.C - Phosphates without Additional Anions, with H2O

08.CA -With small and large/medium cations

08.CA.45 Parascholzite CaZn2(PO4)2•2(H2O) C 2/c or Cc Mono

08.CA.45 Scholzite CaZn2(PO4)2•2(H2O) Pbmm 2/m 2/m 2/m

Other Scholzite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Scholzite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info
16 - WWW-MINCRYST
17 - theimage

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Ask about Scholzite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
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Print or Cut-and-Paste your Scholzite Specimen Label here :

Scholzite

CaZn2(PO4)2•2(H2O)
Dana No: 40.02.06.01 Strunz No: 08.CA.45
Locality:

Notes: