Rare Cubic Red Apophyllite Crystals with Stilbite on Chalcedony - #B28
An Intricate Color-Shift Cluster of Green Apophyllite Crystals # DEN 0102
A Masterpiece of Nature: Stunning Deep Green Apophyllite on Chalcedony. Aurangabad, India #DEN208
Absolutely Arboreal, A Thick, Free-Standing Translucent Sculptural Agate Plate
Perfectly Centered Calcite on many-hued Chalcedony with highlights of Stilbite - #C51
The Ace of Spades! A Thick, Free-Standing Translucent Sculptural Agate Plate.
Geology Print on Aluminum - 'Phase' Phantom Quartz. The Earth's Art, Eye-Catching Science + Art.
Wings of green Apophyllite in a symmetrical flower, perched on miniature Stilbite
A Green Castle of Apophyllite and a Cube of Calcite on White Chalcedony # 20T31
Geology Print on Aluminum - 'Balance' Herkimer Diamond, Sewing Needle Herkimer County, NY
Bright Orange Stilbite with brilliant terminated Apophyllite Crystals on Quartz - #20T159
A multi-dimensional abstract symphony of gemmy yellow Calcite crystals on Apophyllite - #20T127
Calcite, Barite & Amethyst on a hand trimmed Black Chalcedony base. #DEN047