" R200004 - 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The data on this website is already three years out of date, and the entire website will be taken offline before the end of the year.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.

Hydroxymcglassonite-(K) R200004

Name: Hydroxymcglassonite-(K)
RRUFF ID: R200004
Ideal Chemistry: KSr₄Si₈O₂₀(OH)·8H₂O
Locality: Wessels mine, Kalahari manganese field, Northern Cape Province, South Africa
Source: Jaco and Tania Janse van Nieuwenhuizen [view label]
Owner: RRUFF
Description: Colorless tiny crystals (<50 microns) intergrowth with blue granular meieranite (R140947), massive pale green sugilite, prismatic grey aegirine and bladed white pectolite. Cotype sample
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.

Mineral Group: [ Apophyllite (7) ]

CHEMISTRY

RRUFF ID:	R200004.2
Sample Description:	Microprobe Fragment
Measured Chemistry:	K_1.01(Sr_2.99Ca_1.03)_Σ=4.02Si_7.99O₂₀(OH)·8H₂O (Based on 29 O atoms)
Microprobe Data File:	[ Download Excel File ]

RAMAN SPECTRUM

RRUFF ID:

Sample Description:

Unoriented Raman on the primary sample

DOWNLOADS:

	Raman Data (Processed)
	RRUFF File
	Raman Data (RAW)
	RRUFF File

BROAD SCAN WITH SPECTRAL ARTIFACTS

RRUFF ID:

R200004

Wavelength:

Sample Description:

Unoriented Raman on the primary sample

Instrument settings:

Not collected by RRUFF: 488nm @ 100% of mW

DOWNLOADS:

	Raman Data (Processed)
	RRUFF File

POWDER DIFFRACTION

RRUFF ID:

R200004

Sample Description:

Single crystal, powder profile is calculated

Cell Refinement Output:

a: 9.0792(2)Å b: 9.0792(2)Å c: 16.1551(9)Å
alpha: 90° beta: 90° gamma: 90° Volume: 1331.70(10)Å³ Crystal System: tetragonal

DOWNLOADS:

REFERENCES for Hydroxymcglassonite-(K)
Miyawaki R, Hatert F, Pasero M, Mills S J (2021) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 59, European Journal of Mineralogy, 59, 139-143 [view file]
Yang H, Gu X, Scott M M (2022) Hydroxymcglassonite-(K), KSr₄Si₈O₂₀(OH)·8H₂O, the first Sr-bearing member of the apophyllite group, from the Wessels mine, Kalahari Manganese Field, South Africa, American Mineralogist, 107, 1818-1822

REFERENCES for Hydroxymcglassonite-(K)

Miyawaki R, Hatert F, Pasero M, Mills S J (2021) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 59, European Journal of Mineralogy, 59, 139-143 [view file]

Yang H, Gu X, Scott M M (2022) Hydroxymcglassonite-(K), KSr₄Si₈O₂₀(OH)·8H₂O, the first Sr-bearing member of the apophyllite group, from the Wessels mine, Kalahari Manganese Field, South Africa, American Mineralogist, 107, 1818-1822