Ralstonite Gallery

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Ralstonite : NaMgAl(F,OH)₆·H₂O, Paratacamite : Cu₃(Cu,Zn)[(OH)₃\|Cl]₂
	Lavrion Mines, Lavrion (Laurion; Laurium), Lavrion District Mines, Lavrion (Laurion; Laurium) District, Attikí (Attica; Attika) Prefecture, Greece SEM micrograph of Ralstonite octahedra with plates of Paratacamite from Hilarion mine (found by K. H. Fabritz; EDS- and PXRD-analysed). FOV about 0.2 mm. Collection and photograph J. Gröbner
© JGroebner	Photo ID: 88053 View Count: 161
Ralstonite : NaMgAl(F,OH)₆·H₂O
	Ivigtut Cryolite deposit, Ivittuut (Ivigtut), Arsuk Firth, Arsuk, Kitaa (West Greenland) Province, Greenland Colourless, octahedral crystals of Ralstonite covered with iron-oxides. Field of view about 6 mm. The specimen is in the micromount collection of OT. Ljostad.
© OT. Ljostad	Photo ID: 17510 View Count: 664
Ralstonite : NaMgAl(F,OH)₆·H₂O, Thomsenolite : NaCaAlF₆·H₂O
	Ivigtut Cryolite deposit, Ivittuut (Ivigtut), Arsuk Firth, Arsuk, Kitaa (West Greenland) Province, Greenland Octahedral ralstonite with prismatic crystals of thomsenolite. Picture size 5 mm. Photographer and collection Thomas Witzke.
© Thomas Witzke	Photo ID: 8828 View Count: 815
Ralstonite : NaMgAl(F,OH)₆·H₂O, Pachnolite : NaCaAlF₆·H₂O
	Ivigtut Cryolite deposit, Ivittuut (Ivigtut), Arsuk Firth, Arsuk, Kitaa (West Greenland) Province, Greenland Ralstonite (above) associated with pachnolite (below). Both minerals are found incrusting cryolite and result from its alteration. Pachnolite is difficult to distinguish from its dimorph thomsenolite simply by sight identification. Ralstonite, however, is easily discerned from the other alumino-fluoride minerals by its relative hardness and ...
© Saul Krotki 2004	Photo ID: 17040 View Count: 555
Ralstonite : NaMgAl(F,OH)₆·H₂O, Prosopite : CaAl₂(F,OH)₈
	Ivigtut Cryolite deposit, Ivittuut (Ivigtut), Arsuk Firth, Arsuk, Kitaa (West Greenland) Province, Greenland Clear, octaedric ralstonite crystals in vuggy prosopite with tiny prosopite crystals. Field of view about 5 mm. The specimen (no. 2038) is in the micromount collection of OT. Ljostad.
© OT. Ljostad	Photo ID: 17515 View Count: 420
Ralstonite : NaMgAl(F,OH)₆·H₂O, Pachnolite : NaCaAlF₆·H₂O
	Ivigtut Cryolite deposit, Ivittuut (Ivigtut), Arsuk Firth, Arsuk, Kitaa (West Greenland) Province, Greenland Ralstonite (above) associated with pachnolite. Both minerals are found incrusting cryolite and result from its alteration. Pachnolite is difficult to distinguish from its dimorph thomsenolite simply by sight identification. Ralstonite, however, is easily discerned from the other alumino-fluoride minerals by its relative hardness and ...
© Saul Krotki 2004	Photo ID: 17041 View Count: 392
Ralstonite : NaMgAl(F,OH)₆·H₂O
	Ivigtut Cryolite deposit, Ivittuut (Ivigtut), Arsuk Firth, Arsuk, Kitaa (West Greenland) Province, Greenland Picture width 4mm. Photographer and collection O. Dziallas
© O. Dziallas	Photo ID: 34193 View Count: 390
Ralstonite : NaMgAl(F,OH)₆·H₂O
	Ivigtut Cryolite deposit, Ivittuut (Ivigtut), Arsuk Firth, Arsuk, Kitaa (West Greenland) Province, Greenland Cuboctahedral crystals of ralstonite. Photo is about 2.2 mm in length. Photo and specimen: Steve Stuart.
© SMS 2007	Photo ID: 121916 View Count: 126
Ralstonite : NaMgAl(F,OH)₆·H₂O
	Ivigtut Cryolite deposit, Ivittuut (Ivigtut), Arsuk Firth, Arsuk, Kitaa (West Greenland) Province, Greenland Cubic ralstonite crystals with octahedral modifications. Photo is about 2.1 mm in length. Photo and specimen: Steve Stuart.
© SMS 2008	Photo ID: 182476 View Count: 103
Ralstonite : NaMgAl(F,OH)₆·H₂O
	Ivigtut Cryolite deposit, Ivittuut (Ivigtut), Arsuk Firth, Arsuk, Kitaa (West Greenland) Province, Greenland Field width is 1.8 mm. Collection of Jesse Crawford. The depth of field has been enhanced using Helicon Focus (4 exposures). Equipment: Nikon D-100 digital camera on a homemade microscope.
© 2008 Jesse Crawford	Photo ID: 176934 View Count: 86