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(b) Backscattered electron images of mineral aggregates. Fls, fluorluanshiweiite; Cok, cookeite; Cst, cassiterite. The image is published in an open access article (https://www.mdpi.com/2075-163X/10/2/93/htm) distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Mineral

Fluorluanshiweiite

fluorluanshiweiite
Pale-yellow crystals of fluormacraeite on yellow–brown magnesium-bearing triplite. Associated minerals are white fluorapatite and reddish-brown cacoxenite. FOV 0.39 mm. Photo by Christian Rewitzer. Mineral

Fluormacraeite

fluormacraeite

Formula
[(H2O)K]Mn2(Fe2Ti)(PO4)4(OF)(H2O)10·4H2O
Mineral

Fluormayenite

fluormayenite

Formula
Ca12Al14O32[☐4F2]
Mineral

Fluornatrocoulsellite

fluornatrocoulsellite

Formula
(Na1.5Ca0.5)(Mg1.5Al0.5)F6F
Mohs
4.5
Colour
colorlessness
Fluornatromicrolite Locality: Darra-i-Pech (Pech; Peech; Darra-e-Pech) Pegmatite Field, Nangarhar (Ningarhar) Province, Afghanistan (Locality at mindat.org) Size: 4.4 x 3.7 x 2.6 cm. An incredible, gemmy, sharp, glassy 8mm fluornatromicrolite. This is from a small find of 3 years ago (2005-2006), and they seem to occur buried in lepidolite which must be removed to expose these hidden treasures. Extremely rare, beautiful and mineralogically significant specimens from this productive region. Ex. Laura and Stevia Thompson Collection. Mineral

Fluornatromicrolite

fluornatromicrolite

Formula
(Na1.5Bi0.5)Ta2O6F
Mohs
5
Colour
green
Fluornatropyrochlore, Titanite (Field of view 2.53 mm) Locality: Água de Pau Volcano (Fogo Volcano), Água de Pau Massif, São Miguel Island, Azores District, Portugal Two fluornatropyrochlore on sanidine with honey brown titanite. Mineral

Fluornatropyrochlore

fluornatropyrochlore

Formula
(Na,Pb,Ca,REE,U)2Nb2O6F
Fluoro-cannilloite (also Fluor-cannilloite or Fluorcannilloite) Mineral

Fluoro-Cannilloite

fluoro-cannilloite

Formula
CaCa2(Mg4Al)(Si5Al3)O22F2
Mohs
6
Colour
grey, green
Fluoro-edenite Field of view: 2 mm high Locality: Roc de Courlande, Chastreix, Issoire, Puy de Dôme, Auvergne, France (locality at mindat.org) Mineral

Fluoro-Edenite

fluoro-edenite

Formula
{Na}{Ca2}{Mg5}(AlSi7O22)(F,OH)2
Mohs
5.5
Mineral

Fluoro-Leakeite

fluoro-leakeite

Formula
NaNa2(Mg2Al2Li)Si8O22F2
Mohs
6
Mineral

Fluoro-Nybøite

fluoro-nybøite

Formula
NaNa2(Mg3Al2)(Si7Al)O22F2
Mohs
6
Colour
grey
Mineral

Fluoro-Pargasite

fluoro-pargasite

Formula
NaCa2(Mg4Al)(Si6Al2)O22F2
Colour
black
Mineral

Fluoro-Pedrizite

fluoro-pedrizite

Formula
NaLi2(Mg2Al2Li)Si8O22F2
Fluororichterite, Calcite Locality: Earle's Farm Fluororichterite occurrence, Wilberforce, Monmouth Township, Haliburton County, Ontario, Canada (Locality at mindat.org) Size: 6.6 x 4.4 x 3.8 cm. Fluororichterite is a very rare amphibole group species. This fine combination specimen is from the well-known Earle’s Farm occurrence in Ontario. Brilliant, grayish-black, preferentially striated fluororichterite prisms are set in contrasting calcite matrix. The prominent large crystal in front is 4.7 cm and is doubly terminated, with no damage. Highly representative combo material from this noted locale. Mineral

Fluoro-Richterite

fluoro-richterite

Formula
Na(NaCa)Mg5Si8O22F2
Mohs
5.5
Mineral

Fluoro-Riebeckite

fluoro-riebeckite

Formula
☐Na2(Fe²⁺3Fe³⁺2)Si8O22F2
Mineral

Fluoro-Taramite

fluoro-taramite

Formula
NaCaNa(Mg3Al2)Al2Si6O22F2
Colour
green
Mineral

Fluoro-Tremolite

fluoro-tremolite

Formula
☐{Ca2}{Mg5}(Si8O22)F2
Mineral

Fluorocronite

fluorocronite

Formula
PbF2
Mineral

Fluorokinoshitalite

fluorokinoshitalite

Formula
BaMg3Al2Si2O10F2
Hexagonal brown fluorophlogopite from La Aljorra Quarries, Cartagena, Spain. Mineral

Fluorophlogopite

fluorophlogopite

Formula
KMg3(Si3Al)O10F2
Mineral

Fluorotetraferriphlogopite

fluorotetraferriphlogopite

Formula
KMg3Fe³⁺Si3O10F2
Mineral

Fluorowardite

fluorowardite

Formula
NaAl3(PO4)2(OH)2F2·2H2O
Mineral

Fluorphosphohedyphane

fluorphosphohedyphane

Formula
Ca2Pb3(PO4)3F
Mineral

Fluorpyromorphite

fluorpyromorphite

Formula
Pb5(PO4)3F
Mineral

Fluorsigaiite

fluorsigaiite

Formula
Ca2Sr3(PO4)3F