seen from Japan
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077 Llanite / Rhyolite also known as Vulcanite and Trade Marked as ‘Que Sera’, from Bahia, Brazil
weight 18.3g/91.5cts & dimensions 43x29x9mm
Llanite is a variety of Rhyolite with phenocrysts of Microcline and Euhedral Quartz. The quartz crystals are blue hexagonal bipyramids. The unusual blue coloration of the quartz is thought to be due to Ilmenite inclusions.
QUARTZ (Silicon Dioxide ) from Madan District, Bulgaria. Quartz crystals are less than 1 millimeter in length. Taken with a microscope at 30X
Pyrite (Iron Sulfide) with quartz from Madan District, Bulgaria. Well developed striated pyritohedral crystals in a vug surrounded by euhedral quartz. Photo taken at 20x.
QUARTZ (Silicon Dioxide) crystals from Brazil. Variety is smokey quartz.
SPHALERITE and QUARTZ (Zinc Sulfide ans Silicon Dioxide) from Alimon Mine, Huaron District, Peru. Photo shows well developed sphalerite octahedron crystals with euhedral quartz.
