Mont Semiol, Châtelneuf, Montbrison, Loire, Auvergne-Rhône-Alpes, France
Vug in olivine rich basaltic matrix lined with clay mineral and with sprays of long prismatic mazzite-Mg crystals and one small phillipsite crystal at lower left.
© Volker Betz (2022)
Cluster of rare not so extremely long prismatic, transparent mazzite -Mg crystals. This crystals have well visible even (0001) faces and are about 60 µm thick. A phillipsite crystal at left in background.
© Volker Betz (2020)
Nice spary of long prismatic Mazzite-Mg crystals on a very small basaltic matzrix. Some fractions of Phillipsite crystals are also present.
© Volker Betz (2021)
Field of view 3 mm. (ID uncertain, possible Offretite) Specimen and photo Leon Hupperichs.
© Leon Hupperichs
Mazzite-Mg, picture width about 6 mm. Excellent specimen from material collected about 1981. Vug opened 2004. Volker Betz Zeolite Collection
© Volker Betz (2006)
Rare sample showing mazzite in paragesis with Offretite and Phillipsite. Collected ca. 1981. Field of View is ca. 2.5 mm. Zeolite Collection of Volker Betz.
Field of view ca. 9 mm. Very rich for the species. Collected 1981.
© Volker Betz (2009)
Field of view ca. 8 mm of a 10x15 mm specimen. Extremely rich for the species. Collected in 1981.
Field of view ca. 5 mm on a 15x5 mm specimen. Collected in 1981.
mazzite-mg field of view 3mm photo & collection S.Broetto
Mazzite. Vasco Trancoso collection and photo. FOV: 1,5 X 1,2cm. Both types of crystalization: With fine fibers and prismatic.From exchange with Volker Betz.
Rare combination of mazzite-Mg and offretite, with sprays of acicular mazzite-Mg and radiating aggregates of thicker prismatic offretite. At this location offretite forms typical distorted crystals with stacking faults, while the mazzite-Mg crystals are perfect and mostly very thin.
Nice sample of mazzite-Mg. Field of view 4 mm. Photo and specimen Leon Hupperichs.
Field of view 3.9 mm. A group of sprays of Mazzite-Mg crystals with Phillipsite. Collected in 1981.
© Volker Betz (2011)
Colorless, hexagonal crystals of Mazzite-Mg, 3mm field of view. Former Jaroslav Hyrsl collection. Rolf Luetcke specimen and photo.
Field of view 3.9 mm. Exceptional rich specimen with very thin, almost 2 mm long crystals. Collected 1981. Zeolite collection of Volker Betz.
Field of view 2.9 x3.9 mm. One of several Mazzite-Ca clusters on a 25x11 mm specimen. Collected in 1981. Zeolite collection of Volker Betz.
Acicular crystals of mazzite-Mg with phillipsite. Collected 1981. Rich sample for species and location.
© Volker Betz (2015)
Mazzite-Mg sprays Photo & collection Vessely
© y vessely
Several sprays of Mazzite-Mg with clay minerals on a small rock matrix.
Olivine rich basaltic matrix with vugs with two versions of mazzite-Mg. At center a vug with long prismatic crystals and at right a vug with acicular slightly yellow, iron stained crystals. Minor phillipsite is also present.
Vug in olivine rich basaltic matix lined with clay mineral and with sprays of acicular mazzite-Mg crystals and one small phillipsite crystal at right of center.
Vug in basaltic matrix with sprays of mazzite-Mg. Rich sample.
Vug in basaltic matrix with a spray of acicular mazzite-Mg crystals and pseudoteragonal, prismatic phillipsite twins.
Acicular crystals of mazzite-Mg with phillipsite in a vug of basaltic matrix. Collected 1981. Rich sample for species and location.
© Volker Betz (202)
Vug in porphyric olivine rich basalt, lined with phillipsite crystals and numerous sprays of acicular, yellow iron stained mazzite-Mg crystals.
Transparent hexagonal micro crystal cluster of mazzite-Mg on the edge of a vug. Purchased from David Shannon in 1995.
© Andrew Hodgson
