1-20 OF 21 RESULTS FOR

windmountainite

Results shown limited to content with bounding coordinates.
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article
Published: 01 July 2020
The Canadian Mineralogist (2020) 58 (4): 477–509.
...Derek D. Leung; Andrew M. McDonald ABSTRACT Windmountainite, ideally □Fe 3+ 2 Mg 2 □ 2 Si 8 O 20 (OH) 2 (H 2 O) 4 ·4H 2 O, is a new mineral species and member of the palygorskite group discovered as orange-brown, radiating aggregates that commonly fill vesicles (average 1.5 × 2.5 mm) within...
FIGURES | View All (13)
Image
Backscattered electron image of the phonolite dike proximal to vesicles. Al...
Published: 01 July 2020
Fig. 12. Backscattered electron image of the phonolite dike proximal to vesicles. Alkali feldspar (Afs 2 ) and analcime (Anl) are commonly intergrown and pitted, whereas natrolite (Ntr 1 ) is rarely pitted. Note the sharp contact between windmountainite (Wmt) and aegirine (Ae 2
Image
(A) A radial aggregate of <span class="search-highlight">windmountainite</span> showing color zoning: the cores a...
Published: 01 July 2020
Fig. 5. (A) A radial aggregate of windmountainite showing color zoning: the cores are dark reddish-brown and the margins are lighter orange-brown (note: color zoning is only observed in aggregates). (B) Bundles of windmountainite composed of acicular to thinly bladed crystals.
Journal Article
Published: 08 April 2021
The Canadian Mineralogist (2020) 58 (6): 867–869.
..., jinshajiangite, 27, metathenardite, 172, natroaphthitalite, 172, sergevanite, 424, sodalite, 9, synthetic soldalite, 9, windmountainite, 484 acanthite, 195, adanite, 403, alluaudite, 742, amazonite, 689, amblygonite, 738, andymcdonaldite, 85, argyrodite, 196, badakhshanite-(Y), 382, belomarinaite, 170...
Image
OBSERVED BOND DISTANCES (Å) FOR <span class="search-highlight">WINDMOUNTAINITE</span>
Published: 01 July 2020
TABLE 6. OBSERVED BOND DISTANCES (Å) FOR WINDMOUNTAINITE
Image
POSITIONAL AND DISPLACEMENT PARAMETERS (Å 2 ) FOR <span class="search-highlight">WINDMOUNTAINITE</span>
Published: 01 July 2020
TABLE 5. POSITIONAL AND DISPLACEMENT PARAMETERS (Å 2 ) FOR WINDMOUNTAINITE
Image
SUMMARY OF KEY CHEMICAL AND CRYSTALLOGRAPHIC DATA FOR <span class="search-highlight">WINDMOUNTAINITE</span>
Published: 01 July 2020
TABLE 1. SUMMARY OF KEY CHEMICAL AND CRYSTALLOGRAPHIC DATA FOR WINDMOUNTAINITE
Image
CALCULATED BOND VALENCE SUMS (BVS) FOR <span class="search-highlight">WINDMOUNTAINITE</span>
Published: 01 July 2020
TABLE 8. CALCULATED BOND VALENCE SUMS (BVS) FOR WINDMOUNTAINITE
Image
DATA COLLECTION AND CRYSTAL-STRUCTURE REFINEMENT DETAILS FOR <span class="search-highlight">WINDMOUNTAINIT</span>...
Published: 01 July 2020
TABLE 4. DATA COLLECTION AND CRYSTAL-STRUCTURE REFINEMENT DETAILS FOR WINDMOUNTAINITE
Image
BAND POSITIONS AND ASSIGNMENTS (FOURIER-TRANSFORM INFRARED DATA) FOR WINDMO...
Published: 01 July 2020
TABLE 2. BAND POSITIONS AND ASSIGNMENTS (FOURIER-TRANSFORM INFRARED DATA) FOR WINDMOUNTAINITE
Image
POWDER X-RAY DIFFRACTION DATA FOR <span class="search-highlight">WINDMOUNTAINITE</span> (THE SEVEN STRONGEST REFL...
Published: 01 July 2020
TABLE 3. POWDER X-RAY DIFFRACTION DATA FOR WINDMOUNTAINITE (THE SEVEN STRONGEST REFLECTIONS ARE GIVEN IN BOLD)
Image
ASSIGNED SITE POPULATIONS AND OBSERVED  VERSUS  CALCULATED BOND DISTANCES (...
Published: 01 July 2020
TABLE 7. ASSIGNED SITE POPULATIONS AND OBSERVED VERSUS CALCULATED BOND DISTANCES (BASED ON DATA FROM SHANNON 1976) FOR M SITES IN WINDMOUNTAINITE
Image
ATR-FTIR spectrum of <span class="search-highlight">windmountainite</span> with absorption band positions located...
Published: 01 July 2020
Fig. 6. ATR-FTIR spectrum of windmountainite with absorption band positions located (see Table 3 for band assignments). Peaks at 1462, 2850, and 2920 cm –1 are attributed to organic contamination.
Image
Geological map of Wind Mountain. The phonolite dike (labelled TPP) in which...
Published: 01 July 2020
Fig. 2. Geological map of Wind Mountain. The phonolite dike (labelled TPP) in which windmountainite occurs is located on the north side of Wind Mountain and the area that was specifically sampled is denoted by a black circle. From McLemore (2018) , based on field mapping by P. Graseah (July
Image
Hand sample of the grey phonolite with millimeter-sized vesicles containing...
Published: 01 July 2020
Fig. 4. Hand sample of the grey phonolite with millimeter-sized vesicles containing radial aggregates of windmountainite (reddish-brown, acicular). Note the bleached haloes (white) that surround the vesicles; these extend up to 8 mm from the vesicle margin. The brown area on the right
Image
The crystal structure of <span class="search-highlight">windmountainite</span> projected along [001]. It shows  T...
Published: 01 July 2020
Fig. 7. The crystal structure of windmountainite projected along [001]. It shows T O 4 tetrahedra (red) that are linked to form double chains ( i.e ., the T ribbon), which in turn sandwich ribbons ( O ribbon) composed of M φ 6 octahedra (φ = O, OH, H 2 O, Cl). In the O ribbon, M 1φ 6
Image
The  O  ribbon of <span class="search-highlight">windmountainite</span> projected along [100]. The  M φ 6  octahe...
Published: 01 July 2020
Fig. 8. The O ribbon of windmountainite projected along [100]. The M φ 6 octahedra (φ = O, OH, H 2 O, Cl) are: M 1φ 6 (dark blue, solid fill), M 2φ 6 (fuchsia, line-hatched), and M 3φ 6 (cyan, cross-hatched). The OH and structurally bound H 2 O groups are represented by spheres: OH4
Image
Mineral paragenetic sequence of the Wind Mountain phonolite dike. Subscript...
Published: 01 July 2020
= fluorapatite, Apo = fluorapophyllite-(K), Fl = fluorite, Mnt = montmorillonite, Ntc = neotocite, Ntr = natrolite, Shz = schizolite, and Wmt = windmountainite.
Journal Article
Published: 01 October 2019
Mineralogical Magazine (2019) 83 (5): 757–761.
...., Zubkova N.V., Belakovskiy D.I., Britvin S.N. and Koshlyakova N.N. (2019) Vittinkiite, IMA 2017-082a. CNMNC Newsletter No. 51; Mineralogical Magazine , 83 , doi: 10.1180/mgm.2019.58 IMA No. 2018-130a Windmountainite □Fe 3+ 2 Mg 2 Si 8 O 20 (OH) 2 ·8H 2 O Wind Mountain, Otero Co., New...
Journal Article
Published: 01 September 2019
European Journal of Mineralogy (2019) 31 (5-6): 1099–1104.
... No. 51; European Journal of Mineralogy , 31 , https://doi.org/10.1127/ejm/2019/0031-2894 IMA No. 2018-130a Windmountainite □ Fe 2 3 + M g 2 S i 8 O 20 OH 2 · 8 H 2 O Wind Mountain, Otero Co., New Mexico, USA (32°1′31″N...