“Field of view ca. 15 mm. Augite crystals as a major part of Limburgite. The yellow-brown matrix is former olivine weathered to a mixture. See child pic for the whole specimen. Collected in 2007. Zeolite collection of Volker Betz.”

“6x8 cm. Augite crystals as a major part of Limburgite. The yellow-brown matrix is former olivine weathered to a mixture. The surface of some Limburgite boulders show only Limburgite with weathered Olivine. The white spots are Phillipsite-clusters. Collected in 2007. Zeolite collection of Volker Betz.”