All R070149 - RRUFF Database: Raman, X-ray, Infrared, and Chemistry

Important Update News

The RRUFF Project has been migrated to RRUFF.net. Please update your bookmarks immediately, if you have not done so.

The data on this website is already three years out of date, and the entire website will be taken offline before the end of the year.

We are grateful to NASA for the funding of this effort.

Congolite R070149

Name: Congolite
RRUFF ID: R070149
Ideal Chemistry: Fe²⁺₃B₇O₁₃Cl
Locality: Lower Saxony, Germany
Source: James Shigley [view label]
Owner: RRUFF
Description: Light brown pseudocubic crystal
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.

Mineral Group: [ Boracite (9) ]

Quick search: [ All Congolite samples (2) ]

CHEMISTRY

RRUFF ID:	R070149.2
Sample Description:	Microprobe Fragment
Measured Chemistry:	light core: (Fe²⁺_2.32Mg_0.52Mn_0.16)_Σ=3B₇O₁₃Cl_1.00 ; gray rim: (Fe²⁺_2.16Mg_0.77Mn_0.17)_Σ=3B₇O₁₃Cl_1.00 ; B estimated by difference and stoichiometry
Microprobe Data File:	[ Download Excel File ]

RAMAN SPECTRUM

RRUFF ID:

Sample Description:

Unoriented sample

DOWNLOADS:

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

BROAD SCAN WITH SPECTRAL ARTIFACTS

RRUFF ID:

R070149

Wavelength:

Sample Description:

Unoriented sample

Instrument settings:

Thermo Almega XR 532nm @ 100% of 150mW

DOWNLOADS:

	Raman Data (RAW)
	RRUFF File

POWDER DIFFRACTION

RRUFF ID:

R070149.9

Sample Description:

Single crystal, powder profile is calculated

Cell Refinement Output:

a: 8.6023(9)Å b: 8.6023(9)Å c: 21.047(3)Å
alpha: 90° beta: 90° gamma: 120° Volume: 1348.8(3)Å³ Crystal System: hexagonal

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 Congolite
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]
Fleischer M (1972) New mineral names, American Mineralogist, 57, 1311-1317 [view file]
Wendling E, Hodenberg R V, Kühn R (1972) Congolit, der trigonale Eisenboracit, Kali und Steinsalz, 6, 1-3
Dowty E, Clark J R (1973) Crystal-structure refinements for orthorhombic boracite, Mg₃B₇O₁₃Cl, and a trigonal, iron-rich analogue, Zeitschrift für Kristallographie, 138, 64-99 [view file]
Nelmes R J (1974) Structural studies of boracites. A review of the properties of boracites, Journal of Physics C: Solid State Physics, 7, 3841-3855
Mendoza-Alvarez M E, Yvon K, Depmeier W, Schmid H (1985) Structure refinement of trigonal iron-chlorine boracite, Acta Crystallographica, C41, 1551-1552
Burns P C (1995) X-ray powder diffraction data for the identification of boracite-group minerals, Powder Diffraction, 10, 250-260
Burns P C, Carpenter M A (1996) Phase transitions in the series boracite – trembathite – congolite: phase relations, The Canadian Mineralogist, 34, 881-892 [view file]
Burns P C, Carpenter M A (1997) Phase transitions in the series boracite – trembathite – congolite: an infrared spectroscopic study, The Canadian Mineralogist, 35, 189-202 [view file]
Grice J D, Gault R A, Van Velthuizen J (2005) Borate minerals of the Penobsquis and Millstream deposits, southern New Brunswick, Canada, The Canadian Mineralogist, 43, 1469-1487 [view file]
Wachowiak J, Pieczka A, (2012) Congolite and trembathite from the Kłodawa Salt Mine, Central Poland: records of the thermal history of the parental salt dome, The Canadian Mineralogist, 50, 1387-1399 [view file]

REFERENCES for Congolite

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]

Fleischer M (1972) New mineral names, American Mineralogist, 57, 1311-1317 [view file]

Wendling E, Hodenberg R V, Kühn R (1972) Congolit, der trigonale Eisenboracit, Kali und Steinsalz, 6, 1-3

Dowty E, Clark J R (1973) Crystal-structure refinements for orthorhombic boracite, Mg₃B₇O₁₃Cl, and a trigonal, iron-rich analogue, Zeitschrift für Kristallographie, 138, 64-99 [view file]

Nelmes R J (1974) Structural studies of boracites. A review of the properties of boracites, Journal of Physics C: Solid State Physics, 7, 3841-3855

Mendoza-Alvarez M E, Yvon K, Depmeier W, Schmid H (1985) Structure refinement of trigonal iron-chlorine boracite, Acta Crystallographica, C41, 1551-1552

Burns P C (1995) X-ray powder diffraction data for the identification of boracite-group minerals, Powder Diffraction, 10, 250-260

Burns P C, Carpenter M A (1996) Phase transitions in the series boracite – trembathite – congolite: phase relations, The Canadian Mineralogist, 34, 881-892 [view file]

Burns P C, Carpenter M A (1997) Phase transitions in the series boracite – trembathite – congolite: an infrared spectroscopic study, The Canadian Mineralogist, 35, 189-202 [view file]

Grice J D, Gault R A, Van Velthuizen J (2005) Borate minerals of the Penobsquis and Millstream deposits, southern New Brunswick, Canada, The Canadian Mineralogist, 43, 1469-1487 [view file]

Wachowiak J, Pieczka A, (2012) Congolite and trembathite from the Kłodawa Salt Mine, Central Poland: records of the thermal history of the parental salt dome, The Canadian Mineralogist, 50, 1387-1399 [view file]