David K. Joyce

Zeolites, Bay of Fundy, Nova Scoria, Amethyst, Chabazite, Gmelinite

Here are specimens that you rarely see. They are all plates of part geodes of amethyst that also contain Chabazite or gmelinite and, in some, calcite crystals. These chabazite and gmelinite crystals are fluorescent, though! Due to trace amounts of uranium (analysis done), the chabazite or gmelinite glow a nice green colour! If there is calcite, the calcite crystals glow a nice cream colour but are also phosphorescent. That is, they continue to glow after the u/v light is turned off. Special pieces! Good looking, too!

All prices in Canadian dollars. For payment in US$, deduct 18% or multiply by 0.82.

Click on any of the following thumbnails to view a larger image of the specimen.

Item #28751 Chabazite, Calcite, Quartz, var. Amethyst 6.0x5.6x4.5 cm Largest Crystal Size: Ch 12mm $75.00 Big Eddy Slide Cape Blomidon Nova Scotia, Canada This is an interesting one! This section of amethys geode holds a nice chabazite crystal and a poor-looking calcite crystal. However both the Cancite and the chabazite are fluorescent with the calcite being very phosphorescent. That is it continues to glow and then fade after the U/V light is turned off. Very cool!	Item #28753 Calcite, Chabazite 9.2x7.6x5.2 cm Largest Crystal Size: Ca 11mm, Ch 11mm $75.00 Big Eddy Slide Cape Blomidon Nova Scotia, Canada This great looking amethyst geode has both chabazite crystals and a calcite crystal in it. The calcite crystal is phosphorescent and holds it light emission for a fair time after the U/V light is turned off.	Item #28754 Chabazite, Quartz, var. Amethyst 7.0x7.0x5.8 cm Largest Crystal Size: 11mm $65.00 Big Eddy Slide Cape Blomidon Nova Scotia, Canada This amethyst geode contains a couple of excellent, colourless chabazite crystals. Great looking plus the chabazite fluoresces a light green colour. The photo does not do it justice! Very nice!	Item #28781 Chabazite, Quartz, var. Amethyst 11.1x7.8x7.3 cm Largest Crystal Size: 15mm $150.00 Big Eddy Slide Cape Blomidon Nova Scotia, Canada Super! This amethyst geode has a bridge of chabazite crystals across it, with more geode behind. The chabazite is colourless but fluoresces a bright green colour under U/V light. The fluorescence is due to a trace amount of uranium in the molecular structure of the chabazite. Really a striking specimen! in white light OR U/V light.
Item #28761 Stilbite, Quartz var. Amethyst 5.5x5.5x3.9 cm Largest Crystal Size: 5mm $40.00 Big Eddy Slide Cape Blomidon Nova Scotia, Canada This specimen shows an amethyst vug in porcelain agate where the amethyst crystals have smoky-ish terminations. Along the bottom of the piece are divergent stilbite crystals. Nice piece!	Item #28764 Gmelinite, Quartz var. Amethyst 6.1x4.5x4.1 cm Largest Crystal Size: 8mm $65.00 Big Eddy Slide Cape Blomidon Nova Scotia, Canada This specimen shows an amethyst vug in porcelain agate which also contains a well formed beigey gmelinite crystal. Displays well and is an excellent example of this association!	Item #28768 Chabazite, Quartz var. Amethyst 5.3x4.1x4.1 cm Largest Crystal Size: 11mm $65.00 Big Eddy Slide Cape Blomidon Nova Scotia, Canada A lovely vug of light amethyst crystals that also has an 11mm chabazite crystal that glows a nice green colour in u/v light. Beautiful and interesting!	Item #28769 Chabazite, Quartz var. Amethyst 7.3x5.5x3.0 cm Largest Crystal Size: 5mm $75.00 Big Eddy Slide Cape Blomidon Nova Scotia, Canada A rich-looking amethyst vug with lots of colourless chabazite crystals. The chabazite crystals glow a very nice green colour due to a minute amount of uranium that acta as fluorescent activator. Nice!
Item #28770 Chabazite, Quartz var. Amethyst 5.6x2.9x4.4 cm Largest Crystal Size: 6mm $75.00 Big Eddy Slide Cape Blomidon Nova Scotia, Canada This nice amethyst vug has a well formed, colourless chabazite crystal in it, formed on the amethyst. The chabazite crystal is colourless in regular light but a bright green colour in ultraviolet light, due to a trace amount of uranium, fluorescent activator. Sweet!