Log In
Gonnardite from USA
LMA-VC2Gonnardite (Na,Ca)2(Si,Al)5O10·3H2O , Thomsonite-Ca NaCa2[Al5Si5O20]·6H2O , Smectite Group A0.3D2-3[T4O10]Z2·nH2O
Field of View: 10 mm
White gonnardite covers compact, radial, blue thomsonite-Ca on green smectite rarely in some of the Eocene basalt near Big Tree Creek, Yacolt, Clark County, Washington. Specimen was collected by Rudy Tschernich in 1987. This specimen is in the Rudy Tschernich Zeolite Collection, No. RWT5677, at the Rice Northwest Museum of Rocks and Minerals, Hillsboro, Oregon. Photo by Rudy Tschernich.
5T5-HU5Gonnardite (Na,Ca)2(Si,Al)5O10·3H2O
Dimensions: 25 mm x 22 mm x 12 mm
Hemispherical white gonnardite crystal cluster 15 mm diameter on pocket-filled basalt matrix. Two internal zones fluoresce blue-white under UV illumination. With old Ray DeMark label. Ex. A. Stevenson collection #692. Overall size of mineral specimen: 25x22x12 mm. Size of individual crystals: 6 mm.
M0W-8K7Gonnardite (Na,Ca)2(Si,Al)5O10·3H2O , Calcite CaCO3
Field of View: 4.8 mm
These plates of white calcite and tiny white gonnardite crystals were collected on 1/11/2019 by Michael Michayluk. They were a generous gift to me.
9CP-G45Gonnardite (Na,Ca)2(Si,Al)5O10·3H2O
5x5 cm specimen. By exchange with Rudy Tschernich. Zeolite collection of Volker Betz.
W99-71UGonnardite (Na,Ca)2(Si,Al)5O10·3H2O , Chabazite, Epistilbite CaAl2Si6O16·5H2O
Field of View: 11 mm
White gonnardite occurs with colorless rhombohedra of chabazite on orange epistilbite rarely in some of the Eocene basalt near Big Tree Creek, Yacolt, Clark County, Washington. Specimen was collected by Rudy Tschernich in 1987. This specimen is in the Rudy Tschernich Zeolite Collection, No. RWT5673, at the Rice Northwest Museum of Rocks and Minerals, Hillsboro, Oregon. Photo by Rudy Tschernich.
93D-RQ3Gonnardite (Na,Ca)2(Si,Al)5O10·3H2O , Scolecite CaAl2Si3O10·3H2O
Field of View: 16 mm
White fibrous fine-grained gonnardite covered by a colorless to white fibrous scolecite in a cavity in the black basalt in the upper level of the 200/237 Road Quarry, near Wolf Point, Cowlitz County, Washington. Collected by Rudy Tschernich in 1995. Specimen is in the Rudy Tschernich Zeolite Collection No. RWT3329 at the Rice NW Museum of Rocks and Minerals, Hillsboro, Oregon. Photo by Rudy Tschernich.
5NX-N9WGonnardite (Na,Ca)2(Si,Al)5O10·3H2O , Thomsonite-Ca NaCa2[Al5Si5O20]·6H2O
Field of View: 20 mm
White fibrous gonnardite covered by a thin overgrowth of white thomsonite lines a cavity in vesicular Miocene basalt in the Upper Ritter Quarry along the road along the Middle Fork of the John Day River, Grant County, Oregon. Specimen was collected by Rudy Tschernich. This specimen is in the Rudy Tschernich Zeolite Collection, No. RWT2960, at the Rice Northwest Museum of Rocks and Minerals, Hillsboro, Oregon. Photo by Rudy Tschernich.
W20-AKJGonnardite (Na,Ca)2(Si,Al)5O10·3H2O
Field of View: 9 mm
White gonnardite occurs in vesicular Miocene basalt in the Upper Ritter Quarry along the road along the Middle Fork of the John Day River, Grant County, Oregon. Specimen was collected by Rudy Tschernich. This specimen is in the Rudy Tschernich Zeolite Collection, No. RWT2962, at the Rice Northwest Museum of Rocks and Minerals, Hillsboro, Oregon. Photo by Rudy Tschernich.
T9Q-VQRGonnardite (Na,Ca)2(Si,Al)5O10·3H2O , Phillipsite-K K6(Si10Al6)O32·12H2O , Augite (CaxMgyFez)(Mgy1Fez1)Si2O6
Dimensions: 47 mm x 38 mm x 21 mm
White gonnardite, small clear phillipsite-K, black augite. Acuired decades ago, from the late Rudy Tschernich. JSS specimen and photo.
UHT-TH2Gonnardite (Na,Ca)2(Si,Al)5O10·3H2O , Scolecite CaAl2Si3O10·3H2O
Field of View: 15 mm
Compact, fine-grained, radial gonnardite covered by colorless scolecite in black basalt from the upper level of the 200/237 Road Quarry, near Wolf Point, Cowlitz County, Washington. Collected by Rudy Tschernich in 1995. Specimen in the Rudy Tschernich Zeolite Collection No. RWT3505 at the Rice NW Museum of Rocks and Minerals, Hillsboro, Oregon. Photo by Rudy Tschernich.