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Fluorescent Cabochons - cabs made from minerals that fluoresce in either short-wave (SW) or long-wave (LW) ultraviolet light. Some pieces are free-form and suitable for wire-wrap jewelry or simply for collecting; others (where indicated) are standard sizes for mounting in various jewelry findings. To see the fluorescent colors you need a special ultraviolet lamp. For most pieces you will need a Short-Wave (SW) unit, which puts out a wavelength of 254 nanometers.
What you see is what you get-- item in picture is same one that's for sale. Each cabochon or piece of jewelry is a unique item. Stones are natural in origin; in some cases (where noted) stone may be treated with epoxy to fill small pits or strengthen it.
Bustamite & Willemite with Andradite, etc. - Franklin, NJ. The piece appears ivory- or marble-white in daylight. In SW only the willemite responds (bright green). However, LW (350 nm) gives a pleasant surprise: the bustamite glows bubble-gum pink, with the willemite responding green. The color combination is reminiscent of watermelon.
This is one of perhaps 4 or 5 cabs that came from a single rock. I haven't seen material quite like it before or since.
Large free-form, max. dimensions ca. 49 mm tall x 29 mm wide.
#CT1101 ... SOLD
Calcite, Rhodonite & several other minerals - Franklin, New Jersey. In SW UV the calcite gives the appearance of glowing embers - with some green (willemite). Daylight colors include a subtle blue-gray (unidentified mineral). Interesting assemblage which, like quite a few others from the Buckwheat, appears to remain unstudied.
Size approx. 22 x 28 mm. High gloss polish, no unsightly grinding marks or polishing compound residue.
#CT1098 ... $15.00
Calcite, Rhodonite, etc. - Franklin, NJ. FL SW red (calcite) and green (willemite). The rhodonite is a dull pinkish-brown color. Glossy polish. Size approx. 34 mm tall x 26 mm wide.
#CT1100 ... $15.00
Calcite with Serpentine Veins -
Franklin, NJ. From a rock collected on the Buckwheat several
years ago. SW response reveals a beautiful contrast of black
against the brilliant red-orange FL of the calcite. Piece also
has andradite, diopside, franklinite, and probably other
minerals. High gloss polish. Size approx. 36 x 51 mm.
Will probably fit in a standard 36x52 setting. As with my other
cabs, there are no
unsightly grinding marks or polishing compound residue in the display
face. #CT1097 ... $25.00
Calcite & Willemite - Franklin, NJ. Rounded teardrop. Beautiful zoned FL in SW UV. Size approx. 39 mm tall x 23 mm wide. The white lines in the franklinite (daylight picture) are not compound residue; they are reflection from lines in the franklinite. Like my other cabs, this piece was made with strict attention to detail (e.g., no grinding marks from previous steps).
#CT1099 ... SOLD
Hardystonite - Franklin, NJ. I've named this piece "The
Spotted Cow". White hardystonite with black franklinite spots for
an overall appearance reminiscent of a cow. (If you turn it on
its side, it's also shaped rather like a mechanical bull). The
franklinite has reaction rims of willemite (fl. bright green SW).
This "white" hardystonite is the brightest grade, FL blue-violet in
SW. A superb
designer cab
of nearly solid hardystonite; on the larger side for jewelry but
could be wirewrapped. Great for a collection. Height ca. 48
mm, width ca. 31 mm. Glossy polish on front (display face).
Back of stone
is partly polished but lower end of back is the pitted natural rock
surface; stone was cut to conserve material. This
is a gorgeous fluorescent piece. As with all my
cabochons, I'm a perfectionist and have made sure the stone is as good
as it can be. There are No
unsightly grinding scratches or polishing compound to mar the display
face.#CT1088 ... $47.00
Hardystonite - Franklin, NJ.
Shield-shaped, ca. 38 mm tall x 26 mm wide x 6 mm thick.
Hardystonite FL blue-violet SW. Minor amts of calcite (fl. red
SW) and willemite (fl green SW). Diopside ('zinc schefferite') -
non-FL.#CT1089 ... SOLD
Hardystonite, Willemite, Calcite, and "Zinc-Schefferite" (manganoan pyroxene, non-fl.). Teardrop shape, flat face ("buff top"). Size approx 37 mm tall x 22 mm wide x 6 mm thick.
#CT1096 ... $19.00
Hardystonite, Willemite, and "Zinc-Schefferite"
(manganoan pyroxene, probably diopside; non-fl.). Five-sided
freeform. Size approx. 33 mm tall x 26 mm wide x 5 mm
thick. The diopside is
a caramel color in daylight. The hardystonite is fl. blue-violet
(SW) and the willemite is fl. green (SW). #CT1081 ... $16.00
Meionite (Scapolite), Willemite,
Pyroxene, etc. - Franklin, NJ.
The meionite FL a subtle pink in SW; you'll need a powerful UV
light to bring out the color, and even then the lamp must be held close
to the stone. Subdued but very
pretty. Has a very faint 'orangesicle' colored FL in
LW, typical of scapolite. It's an uncommon yet highly
characteristic
assemblage that seems to have come from the edges of the orebody where
the willemite wasn't as abundant. The pyroxene is either
diopside, augite, or petedunnite. Size of cab is approx. 38 mm
tall x 22 mm wide x 6 mm thick. Domed teardrop shape.#CT1090...$22.00
Rhodonite, Willemite, Calcite, etc.
- Franklin, NJ. Tapered cab, height approx 41 mm, width approx 27
mm. Thickness approx. 6 mm. Rhodonite is non-FL but in this
case has willemite and calcite grains disseminated through it.
The hidden willemite & calcite become
visible in SW UV for a pleasing effect. The fl. is even better in
real life
than shown in photo.#CT1094 ... $18.00
Tephroite, Willemite, & Calcite
- Franklin, NJ. Elongated cab with high polish. Crystal
grains of tephroite & willemite in calcite. The willemite has
a subdued, forest-green fl. response similar to that of "black
willemite". Size approx 60 mm
x 28 mm x 8 mm thick.#CT1082 ... SOLD
Tephroite & Willemite with Calcite - Franklin, NJ.
Octagon-shaped cab with high polish. Crystal grains of semi-gemmy
tephroite & willemite... there is a small area that shows something
resembling opalescence or iridescence if you tilt the piece in the
light. This was the only piece we've cut so far that displays
this behavior.Size is about 38 mm x 27 mm.
Treatments: Front surface is 100% natural; back has a layer of epoxy to strengthen the stone.
#CT1071 ... $20.00
Willemite, Calcite,
Garnet, etc -
Franklin, NJ. Subtle hues of tan, pale orange, and pink combine
for a pleasing daylight piece that's also FL in SW UV (green and
red). There appears to be bustamite or rhodonite in this piece,
along with of course willemite, franklinite, etc. Size
approx. 40 mm tall x 22 mm wide x 7 mm thick.#CT1091...SOLD
Browse our selection of additional cabochons:
Agate and Jasper cabochons
Exotic Mineral cabs
Fluorescent cabochons
Various - other ornamental and semi-precious cabs
Jewelry made from unusual cabochons
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