Feb 20, 2023
Thomsonite-Ca, Beech Creek Quarry, OR, USA, photo by Rudy W. Tschernich
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Thomsonite-Ca, Beech Creek Quarry, OR, USA, photo by Rudy W. Tschernich
Thomsonite-Ca
NaCa2(Al5Si5)O20·6H2O
Locality:
Four Mile Quarry, Porter, Grays Harbor Co., Washington, USA
Field of View: 3.6 mm
Stacked spheres of thomsonite-Ca Photographed by and in the collection of Douglas Merson.
From Mindat.Org Photo Of The Day; September 8, 2018:
Thomsonite-Ca: NaCa2[Al5Si5O20]·6H2O; Fluorapophyllite-(K): KCa4(Si8O20)(F,OH)·8H2O; Pyrite: FeS2
Locality: Palabora mine (Foscor open pit; PMC mine), Loolekop, Phalaborwa, Limpopo Province, South Africa
“A 7 mm stellate group of thomsonite on fluorapophyllite with minor cubic pyrite. Bruce Cairncross”
Thomsonite-Ca, Aranga Quarry, New Zealand, photo by Volker Betz
Thomsonite-Ca
NaCa2(Al5Si5)O20·6H2O
Locality:
Pustý Vrch (Schichenberg), Folknáře, Děčín, Ústí Region, Bohemia, Czech Republic
A Nice aggregate of Thomsonite-Ca up to 8 mm.
Bohuslav Bures' Photo
Thomsonite is a common zeolite, forming series, with the mineral species being named Thomsonite-Ca and Thomsonite-Sr. Thomsonite-Ca, by far the more common of the two. Found within fractures in igneous rocks, typically basalts as well as in contact metamorphosed rocks, alkalic igneous rocks, subvolcanic rocks, and occasionally as a cement on sandstones. Thomsonite is pyroelectric, meaning it can generate a charge temporarily when heated.
Thomsonite-Ca
BB-M-0438
94*55*63mm // 299g (Small Cabinet)
Folknáre, Czech Republic
Thomsonite-Ca w/Mesolite
BB-M-0451
Burnt Cabin Creek, Spray, Wheeler County, Oregon, USA
36x35x25mm // 10g (Miniature)
Calcite, Thomsonite-Ca, Phillipsite
CaCO3
NaCa2(Al5Si5)O20·6H2O
(Ca,Na2,K2)3Al6Si10O32·12H2O
Locality:
Nickel Quarry, Oberwiddersheim, Hungen, Vogelsberg, Hesse, Germany
Calcite aggregates in addition to radial thomsonite spheres and phillipsite crystal background.
Field of View: 5 mm
Stefan Koch’s Photo