Bubbly hyalite opal with typical green fluorescence under shortwave UV due to uranyl ions. Ex Scott Braley. Width of view 6mm. Stack of 14 images (SWUV). Stack of 45 images (White Light). Click on the...
Four pieces. Photo shows ilmenite on augite. Also present andesine and hedenbergite. Width of view 3mm. Stack of 50 images.
A cluster of sulphur crystals with globular hyalite opal. Width of view 7.75mm wide. Stack of 65 images. Click on the image below for a higher resolution version.
Beads of hyalite on sinter. Width of view 6mm. Stack of 50 images. Click on the image below for a higher resolution version.
Trigonal hematite crystals that have been completely replaced by goethite, with minor colourless hyalite opal. Ex Barry Schubert Collection. Width of view 8.63mm. Stack of 45 images. Click on the image below for a higher...
Colourless prismatic creedite crystals with white and colourless hyalite opal. There is a slight hint of pink in the creedite above the main crystal group. Ex Graham Lee Collection. Width of view 11.5mm. Stack of...
Light green spheres of conichalcite with pale blue agardite and chrysocolla. Tiny spheres of hyalite opal on some of the agardite crystals. Ex Jo Price Collection. Width of view 5.75mm. Stack of 40 images. Click...
White globular hyalite opal partially coating one of the greenish barrel-shaped pyromorphite crystals. The opal fluoresces white under longwave UV. Ex Val Hannah Collection. Width of view 19mm. Stack of 51 images. Click on the...
Collected by Joan Lamond in 2000 on a Victorian Mineralogical Society field trip.
Ex Dick Haslam Collection
An unusual shape! Reminiscent of a pipe, or a rugose coral, this hyalite opal has seeded on a prismatic augite crystal. Ex Dick Haslam Collection. Width of view 3.5mm. Stack of 30 images. Click on...
A fairly rough-looking white andesine crystal is perched on the end of a prismatic dark brown, almost black augite crystal. But wait there’s more. The top third of the augite crystal is coated by a...
Ex Dick Haslam Collection. Width of view 3.5mm. Stack of 60 images. Click on the image for a higher resolution one.
Acquired by Joan Lamond in 1995 from Judy Rowe.
Acquired by Joan Lamond in 1995 from Michael Hirst.
Nice sharp group of cassiterite crystals with a partial coating of fluorescent green hyalite opal. The hyalite fluoresces under longwave UV (Convoy) but is much brighter under shortwave. The green fluorescence is due to uranyl...
