Lindbergite Mineral Data

[New Updates] [Gallery 1] [Gallery 2] [Gallery 3] [Rock Shop Gallery]
Serving the mineral collector and educator community since 1970
Over 900,000 mineral specimens in stock
New minerals acquired weekly - Wright's Rock Shop

General Lindbergite Information

Chemical Formula:

Mn(C2O4)•2(H2O)

Composition:

Molecular Weight = 185.59 gm

Sodium 0.12 % Na 0.17 % Na₂O

Manganese 32.86 % Mn 42.43 % MnO

Aluminum 0.15 % Al 0.27 % Al₂O₃

Hydrogen 2.34 % H 20.87 % H₂O

Carbon 12.56 % C 37.64 % C₂O₃

Oxygen 51.98 % O

______ ______

100.00 % 101.38 % = TOTAL OXIDE

Empirical Formula:

Mn²⁺_1.11Na_0.01Al_0.01(C₂O₄)_0.97•2.15(H₂O)

Environment:

Secondary mineral in a granitic pegmatite. Thought to be pseudomorphous after the tri-hydrate. Mn analogue of humboldtine (oxalate)

IMA Status:

Approved IMA 2004 (Dana # Added)

Locality:

Boca Rica mine, Galileit, Minas Gerais, Brazil Link to MinDat.org Location Data.

Name Origin:

Named for Marie Louise Lindburg-Smith (1918-), USGS scientist who described several new species from the mine.

Synonym:

IMA2003-029

Lindbergite Image

Images:

Lindbergite Rockbridgeite

Comments: Rare organic mineral - lindbergite (Mn dihydrate oxalate) in white patches on rockbridgeite matrix.
Location: Boca Rica mine, Sapucaia do Norte, Gilileia, Minas Gerais, Brazil. Scale: Spot size 1 mm.
© Tom Loomis / Dakota Matrix

Images:

Lindbergite

Comments: Secondary electron image of interlocked irregularly contoured platelets of lindbergite. (AmMin v 89, p 1088).
Location: Boca Rica mine, Sapucaia do Norte, Gilileia, Minas Gerais, Brazil. Scale: See Image.
© American Mineralogist

Lindbergite Crystallography

Axial Ratios:

a:b:c =2.1226:1:1.7697

Cell Dimensions:

a = 11.955, b = 5.632, c = 9.967, Z = 4; beta = 128.34° V = 526.36 Den(Calc)= 2.34

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c

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

By Intensity(I/I_o): 4.813(1)(202), 4.704(0.84)(200), 2.998(0.58)(402),4.861(0.26)(111), 3.909(0.23)(002), 3.626(0.22)(111),

Physical Properties of Lindbergite

Cleavage:

{010} Perfect

Color:

White, Grayish white.

Density:

2.1

Diaphaneity:

Transparent

Fracture:

Friable - The crumbly disintegration of earthy materials or highly fractured minerals.

Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Habit:

Pseudomorphous - Occurs in the form of another mineral.

Hardness:

2.5 - Finger Nail

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Lindbergite

Gladstone-Dale:

CI meas= -0.659 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.488 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2313,KPDmeas= 0.2578,KC= 0.1554
Ncalc = 1.33 - 1.36

Optical Data:

Biaxial (-), a=1.424, b=1.55, g=1.65, bire=0.2260, 2V(Calc)=76, 2V(Meas)=80. Dispersion r > v very weak.

Calculated Properties of Lindbergite

Electron Density:

Bulk Density (Electron Density)=2.32 gm/cc
note: Specific Gravity of Lindbergite =2.34 gm/cc.

Fermion Index:

Fermion Index = 0.0016340801
Boson Index = 0.9983659199

Photoelectric:

PE_Lindbergite= 8.37 barns/electron
U=PE_Lindbergite x rElectron Density= 19.46 barns/cc.

Radioactivity:

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

Lindbergite Classification

Dana Class:

50.01.03.03 (50)Salts of Organic Acids

(50.01)(Oxalates)

(50.01.03)Humboldtine Group

50.01.03.01 Humboldtine Fe(C2O4)•2(H2O) I2/a 2/m

50.01.03.02 Glushinskite Mg(C2O4)•2(H2O) C 2/c 2/m

50.01.03.03 Lindbergite! Mn(C2O4)•2(H2O) C 2/c 2/m

Strunz Class:

10.AB.05 10 - ORGANIC COMPOUNDS

10.A - Salts of Organic Acids

10.AB -Oxalates

10.AB.05 Humboldtine Fe(C2O4)•2(H2O) I2/a 2/m

10.AB.05 Lindbergite! Mn(C2O4)•2(H2O) C 2/c 2/m

Other Lindbergite Information

References:

NAME( AmMin, v 89, p 1087) PHYS. PROP.(AmMin, v 89, p 1087) OPTIC PROP.(AmMin, v 89, p 1087)

See Also:

Links to other databases for Lindbergite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - MinDAT
6 - MinMax(Deutsch)
7 - MinMax(English)
8 - Mineralienatlas (Deutsch)
9 - QUT Mineral Atlas
10 - Ruff.Info

Search for Lindbergite using:

[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Lindbergite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Lindbergite Mineral Data :

Ask about Lindbergite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Lindbergite Specimen Label here :

Lindbergite

Mn(C2O4)•2(H2O)
Dana No: 50.01.03.03 Strunz No: 10.AB.05
Locality:

Notes: