Rinmanite Mineral Data

General Rinmanite Information

Chemical Formula:

(Zn,Mn)2Sb2Mg2Fe4O14(OH)2

Composition:

Molecular Weight = 894.42 gm

Magnesium 5.43 % Mg 9.01 % MgO

Manganese 1.84 % Mn 2.38 % MnO

Aluminum 0.60 % Al 1.14 % Al₂O₃

Zinc 11.70 % Zn 14.56 % ZnO

Iron 24.35 % Fe 31.33 % FeO

Antimony 27.22 % Sb 36.17 % Sb₂O₅

Hydrogen 0.23 % H 2.01 % H₂O

Oxygen 28.62 % O

______ ______

100.00 % 96.60 % = TOTAL OXIDE

Empirical Formula:

Zn_1.6Mn²⁺_0.3Sb₂Mg₂Fe²⁺_3.9Al_0.2O₁₄(OH)₂

Environment:

Skarn mineral formed during prograde metamorphism of an initially low-S, siliceous carbonate protolith enriched in Zn, Sb and Fe, at relatively high P(H2O). Isostructural with nolan ite

IMA Status:

Approved IMA 2000 (Dana # Added)

Locality:

Garpenberg Norra Zn-Pb mine, Hedemora, Dalarna, in south-central Sweden. Link to MinDat.org Location Data.

Name Origin:

Named after Sven Rinman (1720-1792), father of the Swedish mineral industry, member of the Bergskollegium.

Synonym:

IMA2000-036

Rinmanite Image

Images:

Rinmanite

Comments: A. Specimen with carbonates (white), amphibole (reddish) and frankliniteâ€“rinmanite (dark spots). B. Same specimen illuminated with UV light (254 nm). Note the orange-red carbonate fluorescence.
Location: Garpenberg Norra Zn-Pb mine, Hedemora, Dalarna, in south-central Sweden. (CanMin, v39:1675). Scale: Specimen Size 5 cm wide.
© Canadian Mineralogist

Images:

Rinmanite Franklinite

Comments: B&W image (reflected light) of a polished section of rinmanite and franklinite (white) with associated silicates.
Location: Garpenberg Norra Zn-Pb mine, Hedemora, Dalarna, in south-central Sweden. (CanMin, v39:1675). Scale: Scale Bar 0.2 mm.
© Canadian Mineralogist

Rinmanite Crystallography

Axial Ratios:

a:c = 1:1.56146

Cell Dimensions:

a = 5.9899, c = 9.353, Z = 1; V = 290.62 Den(Calc)= 5.11

Crystal System:

Hexagonal - Dihexagonal Pyramidal H-M Symbol (6mm) Space Group: P 6₃mc

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

By Intensity(I/I_o): 2.522(1)(112), 1.497(0.54)(220), 2.673(0.44)(103),2.994(0.43)(110), 3.474(0.34)(102), 1.517(0.33)(205), 1.66(0.28)(213), 5.19(0.2)(100),

Physical Properties of Rinmanite

Cleavage:

{100} Good

Color:

Black, Very dark red.

Diaphaneity:

Opaque

Fracture:

Splintery - Thin, elongated fractures produced by intersecting good cleavages or partings (e.g. hornblende).

Habit:

Acicular - Occurs as needle-like crystals.

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Hardness:

6-7 - Orthoclase-Quartz

Luster:

Sub Metallic

Streak:

brown

Optical Properties of Rinmanite

Optical Data:

Uniaxial (-).

NCalc= 1.86 - from Gladstone-Dale relationship (KC = 0.1692) where Ncalc=Dcalc*KC+1

RL Anisotrophism:

Moderate.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Rinmanite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
460 nm	13.60	12.20
540 nm	12.90	11.80
580 nm	12.70	11.70
640 nm	12.30	11.40

**Calculated Relative Intensity Colors of Rinmanite in Air**
Relative Intensity	0%	80%	100%	160%	240%	320%	400%	480%	560%	640%	720%	760%
R₁
R₂

Calculated Properties of Rinmanite

Electron Density:

Bulk Density (Electron Density)=4.75 gm/cc
note: Specific Gravity of Rinmanite =5.11 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_Rinmanite= 100.47 barns/electron
U=PE_Rinmanite x rElectron Density= 476.99 barns/cc.

Radioactivity:

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

Rinmanite Classification

Dana Class:

04.06.07.02 (04)Simple Oxides

(04.06)not classified

(04.06.07)Dana Group

04.06.07.01 Nolanite (V,Fe,Fe,Ti)10O14(OH)2 P 6₃mc 6mm

04.06.07.02 Rinmanite! (Zn,Mn)2Sb2Mg2Fe4O14(OH)2 P 6₃mc 6mm

Strunz Class:

04.CB.40 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.C - Metal:Oxygen = 2:3, 3:5, and Similar

04.CB -With medium-sized cations

04.CB.40 Kamiokite Fe2Mo3O8 P 6₃mc 6mm

04.CB.40 Nolanite (V,Fe,Fe,Ti)10O14(OH)2 P 6₃mc 6mm

04.CB.40 Rinmanite! (Zn,Mn)2Sb2Mg2Fe4O14(OH)2 P 6₃mc 6mm

Other Rinmanite Information

References:

NAME( CanMin vol 39, n 6, p 1675) PHYS. PROP.(CanMin vol 39, n 6, p 1675) OPTIC PROP.(CanMin vol 39, n 6, p 1675)

See Also:

Links to other databases for Rinmanite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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Rinmanite

(Zn,Mn)2Sb2Mg2Fe4O14(OH)2
Dana No: 04.06.07.02 Strunz No: 04.CB.40
Locality:

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