----- R070150 - RRUFF Database: Raman, X-ray, Infrared, and Chemistry

Niocalite R070150

Name: Niocalite
RRUFF ID: R070150
Ideal Chemistry: Ca₇Nb(Si₂O₇)₂O₃F
Locality: MolyCorp Trench, Oka, Deux-Montagnes County, Quebec, Canada
Source: James Shigley [view label]
Owner: RRUFF
Description: Yellow prismatic crystals on calcite matrix
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.

Mineral Group: [ Wohlerite (11) ]

CHEMISTRY

RRUFF ID:	R070150.2
Sample Description:	Microprobe Fragment
Measured Chemistry:	(Ca_6.20Na_0.16Mn_0.12Mg_0.07Fe_0.06Ce_0.03La_0.01Nd_0.01Pr_0.01)_Σ=6.67(Nb_0.99Zr_0.03Ta_0.02Ti_0.01)_Σ=1.05(Si₂O₇)_1.96[O₃F_0.37(OH)_0.51]_Σ=3.88
Microprobe Data File:	[ Download Excel File ]

RAMAN SPECTRUM

RRUFF ID:

Sample Description:

Unoriented sample, 780 Raman signal was completely overwhelmed by fluorescence

DOWNLOADS:

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

BROAD SCAN WITH SPECTRAL ARTIFACTS

RRUFF ID:

R070150

Wavelength:

Sample Description:

Unoriented sample, 780 Raman signal was completely overwhelmed by fluorescence

Instrument settings:

Thermo Almega XR 532nm @ 100% of 150mW

DOWNLOADS:

	Raman Data (RAW)
	RRUFF File

POWDER DIFFRACTION

RRUFF ID:

R070150.9

Sample Description:

Single crystal, powder profile is calculated

Cell Refinement Output:

a: 10.845(1)Å b: 10.4212(8)Å c: 7.3669(6)Å
alpha: 90° beta: 110.113(5)° gamma: 90° Volume: 782.5(1)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 Niocalite
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]
Nickel E H (1956) Niocalite - a new calcium niobium silicate mineral, American Mineralogist, 41, 785-786 [view file]
Nickel E H, Rowland J F, Mawwell J A (1958) The composition and crystallography of niocalite, The Canadian Mineralogist, 6, 264-272 [view file]
Li T J, Simonov V I, Belov N V (1966) The crystal structure of niokalite, Soviet Physics - Doklady, 11, 197-199
Mellini M (1982) Niocalite revised: twinning and crystal structure, Tschermaks Mineralogische und Petrographische Mitteilungen, 30, 249-266
Biagioni C, Merlino S, Parodi G C, Perchiazzi N (2012) Crystal chemistry of minerals of the wöhlerite group from the Los Archipelago, Guinea, The Canadian Mineralogist, 50, 593-609 [view file]
Dal Bo F, Friis H, Mills S J (2022) Nomenclature of wöhlerite group minerals, Mineralogical Magazine, 86, 661-676

REFERENCES for Niocalite

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]

Nickel E H (1956) Niocalite - a new calcium niobium silicate mineral, American Mineralogist, 41, 785-786 [view file]

Nickel E H, Rowland J F, Mawwell J A (1958) The composition and crystallography of niocalite, The Canadian Mineralogist, 6, 264-272 [view file]

Li T J, Simonov V I, Belov N V (1966) The crystal structure of niokalite, Soviet Physics - Doklady, 11, 197-199

Mellini M (1982) Niocalite revised: twinning and crystal structure, Tschermaks Mineralogische und Petrographische Mitteilungen, 30, 249-266

Biagioni C, Merlino S, Parodi G C, Perchiazzi N (2012) Crystal chemistry of minerals of the wöhlerite group from the Los Archipelago, Guinea, The Canadian Mineralogist, 50, 593-609 [view file]

Dal Bo F, Friis H, Mills S J (2022) Nomenclature of wöhlerite group minerals, Mineralogical Magazine, 86, 661-676