Blocky apophyllite crystals on calcite. Ex Bernie Day Collection. Width of view 11.5mm. Stack of 100 images. Click on the image below for a higher resolution version.
Small sharp apophyllite crystals and balls of goethite on parallel-grown quartz crystals. Ex Bernie Day Collection. Width of view 11.5mm. Stack of 120 images. Click on the image below for a higher resolution version.
Prismatic colourless apophyllite crystals with pinkish chabazite and colourless bladed thomsonite. The latter fluoresces strong white. Width 18mm. Stack of 180 images. Ex Jo Price Collection.
Colourless stilbite crystals on black bitumen. Laumontite intermingled with bitumen. Apophyllite (in second photo) and unknown hexagonal or pseudohexagonal (in main photo) crystals in another cavity. Maybe just apophyllite? Photo width 3.25mm. The calcite is...
Material containing variable amounts of the unnamed” copper-calcium-aluminium silicate sent to Mrs Judy Montoya
