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

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.

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) 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]
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]

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]

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]