----- R060320 - RRUFF Database: Raman, X-ray, Infrared, and Chemistry

Eckermannite R060320

Name: Eckermannite
RRUFF ID: R060320
Ideal Chemistry: NaNa₂(Mg₄Al)Si₈O₂₂(OH)₂
Locality: Norra Karr Complex, near Granna, Ostergotsland, Sweden
Source: Michael Scott S100151 [view label]
Owner: RRUFF
Description: Parallel aggregate of blue elongated bladed crystals
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.

Mineral Group: [ amphibole (107) ]

CHEMISTRY

RRUFF ID:	R060320.2
Sample Description:	Microprobe fragment, only darker patches were examined
Measured Chemistry:	(Na_2.50K_0.30◻_0.20)_Σ=3(Mg_2.35Fe²⁺_1.35Al_1.20Mn_0.10)_Σ=5Si_8.00O₂₂((OH)_1.18F_0.82)_Σ=2; OH estimated by charge balance, dark material
Microprobe Data File:	[ Download Excel File ]

RAMAN SPECTRUM

RRUFF ID:

Sample Description:

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

Pin ID:

M00815

Orientation:

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

DOWNLOADS:

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

BROAD SCAN WITH SPECTRAL ARTIFACTS

RRUFF ID:

R060320

Wavelength:

Sample Description:

Unoriented Raman on the primary sample

Instrument settings:

Thermo Almega XR 532nm @ 100% of 150mW

DOWNLOADS:

	Raman Data (RAW)
	RRUFF File

POWDER DIFFRACTION

RRUFF ID:

R060320.9

Sample Description:

Single crystal, powder profile is calculated

Cell Refinement Output:

a: 9.712(2)Å b: 17.741(3)Å c: 5.2804(7)Å
alpha: 90° beta: 104.040(9)° gamma: 90° Volume: 882.6(2)Å³ Crystal System: monoclinic

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 Eckermannite
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]
Adamson O J (1942) Eckermannite, a new alkali amphibole. Preliminary note., Geologiska Föreningens i Stockholm Förhandlingar, 64, 329-334 [view file]
Leake B E (1978) Nomenclature of amphiboles, American Mineralogist, 63, 1023-1052 [view file]
Leake B E, Woolley A R, Arps C E S, Birch W D, Gilbert M C, Grice J D, Hawthorne F C, Kato A, Kisch H J, Krivovichev V G, Linthout K, Laird J, Mandarino J A, Maresch W V, Nickel E H, Rock N M S, Schumacher J C, Smith D C, Stephenson N C N, Ungaretti L, Whittaker E J W, Youzhi G (1997) Nomenclature of amphiboles: report of the Subcommittee on Amphiboles of the International Mineralogical Association, Commission on New Minerals and Mineral Names, The Canadian Mineralogist, 35, 219-246 [view file]
Leake B E, Woolley A R, Birch W D, Burke E A J, Ferraris G, Grice J D, Hawthorne F C, Kisch H J, Krivovichev V G, Schumacher J C, Stephenson N C N, Whittaker E J W (2003) Nomenclature of amphiboles: additions and revisions to the International Mineralogical Association’s 1997 recommendations, The Canadian Mineralogist, 41, 1355-1362 [view file]
Williams P A, Hatert F, Pasero M, Mills S J (2014) IMA Commission on new minerals, nomenclature and classification (CNMNC) Newsletter 20. New minerals and nomenclature modifications approved in 2014, Mineralogical Magazine, 78, 549-558 [view file]
Oberti R, Boiocchi M, Hawthorne F C, Ball N A, Harlow G E (2015) Eckermannite revised: the new holotype from the Jade Mine Track, Myanmar - crystal structure, mineral data, and hints on the reasons for the rarity of eckermannite, American Mineralogist, 100, 909-914 [view file]
Danisi R M, Armbruster T (2017) Crystal structure of potassic-mangani-leakeite from the Wessels Mine, Kalahari Manganese Field, South Africa, European Journal of Mineralogy, 29, 143-148
Howe H, Pawley A R, Welch M D (2018) Sodium amphibole in the post-glaucophane high-pressure domain: The role of eckermannite, American Mineralogist, 103, 989-992

REFERENCES for Eckermannite

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]

Adamson O J (1942) Eckermannite, a new alkali amphibole. Preliminary note., Geologiska Föreningens i Stockholm Förhandlingar, 64, 329-334 [view file]

Leake B E (1978) Nomenclature of amphiboles, American Mineralogist, 63, 1023-1052 [view file]

Leake B E, Woolley A R, Arps C E S, Birch W D, Gilbert M C, Grice J D, Hawthorne F C, Kato A, Kisch H J, Krivovichev V G, Linthout K, Laird J, Mandarino J A, Maresch W V, Nickel E H, Rock N M S, Schumacher J C, Smith D C, Stephenson N C N, Ungaretti L, Whittaker E J W, Youzhi G (1997) Nomenclature of amphiboles: report of the Subcommittee on Amphiboles of the International Mineralogical Association, Commission on New Minerals and Mineral Names, The Canadian Mineralogist, 35, 219-246 [view file]

Leake B E, Woolley A R, Birch W D, Burke E A J, Ferraris G, Grice J D, Hawthorne F C, Kisch H J, Krivovichev V G, Schumacher J C, Stephenson N C N, Whittaker E J W (2003) Nomenclature of amphiboles: additions and revisions to the International Mineralogical Association’s 1997 recommendations, The Canadian Mineralogist, 41, 1355-1362 [view file]

Williams P A, Hatert F, Pasero M, Mills S J (2014) IMA Commission on new minerals, nomenclature and classification (CNMNC) Newsletter 20. New minerals and nomenclature modifications approved in 2014, Mineralogical Magazine, 78, 549-558 [view file]

Oberti R, Boiocchi M, Hawthorne F C, Ball N A, Harlow G E (2015) Eckermannite revised: the new holotype from the Jade Mine Track, Myanmar - crystal structure, mineral data, and hints on the reasons for the rarity of eckermannite, American Mineralogist, 100, 909-914 [view file]

Danisi R M, Armbruster T (2017) Crystal structure of potassic-mangani-leakeite from the Wessels Mine, Kalahari Manganese Field, South Africa, European Journal of Mineralogy, 29, 143-148

Howe H, Pawley A R, Welch M D (2018) Sodium amphibole in the post-glaucophane high-pressure domain: The role of eckermannite, American Mineralogist, 103, 989-992