Red-fluorescing calcite crystals with minor heulandite (pictured) and barite. Width of view 6mm. Stack of 50 images. Click on the image below for a higher resolution version.
Colourless and amber-coloured crystals of heulandite. The latter presumably through colour transmitted from the matrix? Ex Bernie Day Collection. Width of view 6mm. Stack of 70 images. Click on the image below for a higher...
A cavity lined with heulandite crystals ranging in colour from yellow-orange through to orange-red. Some crystals have colourless zones. Width of view 6mm. Stack of 80 images. Click on the image below for a higher...
Spherical brown siderite on heulandite. Width of view 3.5mm. Stack of 28 images. Click on the image below for a higher resolution version.
Colourless to white tabular heulandite crystals with colourless sprays of gypsum. The heulandite crystals have dark blue cores giving the crystals a bluish hue. Width of view 3.5mm. Stack of 35 images. Click on the...
Small white tufts of ferrierite on colourless heulandite. Ex Val Hannah Collection. Width of view 11.5mm. Stack of 80 images. Click on the image below for a higher resolution version.
Orange coffin-shaped heulandite crystals coating the inside of a vesicle in basalt, from a locality first discovered in the 1960s. Also present is rosettes of green chlorite. Ex John Sobolewski. Width of view 5mm. Stack...
Colourless analcime crystals on heulandite. Ex John Sobolewski. Width of view 3.5mm. Stack of 40 images. Click on the image below for a higher resolution version.
Ex John Lewis collection.
Colourless blocky coffin-shaped heulandite crystals with colourless prisms of erionite-K. Width of view 3.5mm. Stack of 55 images. Click on the image below for a higher resolution version.
Typical coffin-shaped crystals. Width 9mm. Stack of 70 images. Ex Jo Price Collection.
K & M Brown Collection
Bernie & Margaret Day Collection. Rock-site.co.uk, now Steetley Minerals – Peter Briscoe
Two quartz crystals fluoresce
ex Joan Lamond Collection
Said to be uncommon at the Ray Mine, this metatorbernite is beautiful and hardly even looks hydrated enough to be metatorbernite. Perched upon a bed of clear white heulandite crystals, this all makes for a...
