- R080004 - RRUFF Database: Raman, X-ray, Infrared, and Chemistry

Groutite R080004

Name: Groutite
RRUFF ID: R080004
Ideal Chemistry: Mn³⁺O(OH)
Locality: Roberts mine, Crosby, Minnesota, USA
Source: Michael Scott S101187 [view label]
Owner: RRUFF
Description: Black crystalline and in some cases striated.
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.

Mineral Group: [ Diaspore (11) ]

Quick search: [ All Groutite samples (2) ]

CHEMISTRY

RRUFF ID:	R080004.2
Sample Description:	Microprobe Fragment

RAMAN SPECTRUM

RRUFF ID:

Sample Description:

Sample is oriented, mounted on a pin, and polished.

Pin ID:

M01773

Orientation:

Laser parallel to b* (0 1 0). Fiducial mark perpendicular to laser is parallel to -c [0 0 -1].

DOWNLOADS:

To download sample data,
please select a specific
orientation angle.

BROAD SCAN WITH SPECTRAL ARTIFACTS

RRUFF ID:

R080004

Wavelength:

Sample Description:

Unoriented sample

Instrument settings:

Thermo Almega XR 532nm @ 100% of 150mW

DOWNLOADS:

	Raman Data (RAW)
	RRUFF File

POWDER DIFFRACTION

RRUFF ID:

R080004.9

Sample Description:

Single crystal, powder profile is calculated

Cell Refinement Output:

a: 10.697(4)Å b: 2.8844(8)Å c: 4.566(1)Å
alpha: 90° beta: 90° gamma: 90° Volume: 140.88(4)Å³ Crystal System: orthorhombic

File Type Information

Calculated diffraction file.

File Type Information

Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

DOWNLOADS:

	DIF File
	X-ray Data (XY - RAW)
	RRUFF File

REFERENCES for Groutite
American Mineralogist Crystal Structure Database Record: [view record]
Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file]
Gruner J W (1947) Groutite, HMnO₂, a new mineral of the diaspore-goethite group, American Mineralogist, 32, 654-659 [view file]
Fleischer M (1948) New mineral names, American Mineralogist, 33, 384-386 [view file]
Dent Glasser L S, Ingram L (1968) Refinement of the crystal structure of groutite, α-MnOOH, Acta Crystallographica, B24, 1233-1236
Majmundar H H (1969) Ramsdellite and groutite from Nova Scotia, The Canadian Mineralogist, 9, 718-720 [view file]
Kohler T, Armbruster T, Libowitzky E (1997) Hydrogen bonding and Jahn-Teller distortion in groutite, α-MnOOH, and manganite, γ-MnOOH, and their relations to the manganese dioxides ramsdellite and pyrolusite, Journal of Solid State Chemistry, 133, 486-500
Post J E, McKeown D A, Heaney, P J (2020) Raman spectroscopy study of manganese oxides: Tunnel structures, American Mineralogist, 105, 1175-1190 [view file]

REFERENCES for Groutite

American Mineralogist Crystal Structure Database Record: [view record]

Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file]

Gruner J W (1947) Groutite, HMnO₂, a new mineral of the diaspore-goethite group, American Mineralogist, 32, 654-659 [view file]

Fleischer M (1948) New mineral names, American Mineralogist, 33, 384-386 [view file]

Dent Glasser L S, Ingram L (1968) Refinement of the crystal structure of groutite, α-MnOOH, Acta Crystallographica, B24, 1233-1236

Majmundar H H (1969) Ramsdellite and groutite from Nova Scotia, The Canadian Mineralogist, 9, 718-720 [view file]

Kohler T, Armbruster T, Libowitzky E (1997) Hydrogen bonding and Jahn-Teller distortion in groutite, α-MnOOH, and manganite, γ-MnOOH, and their relations to the manganese dioxides ramsdellite and pyrolusite, Journal of Solid State Chemistry, 133, 486-500

Post J E, McKeown D A, Heaney, P J (2020) Raman spectroscopy study of manganese oxides: Tunnel structures, American Mineralogist, 105, 1175-1190 [view file]