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CR Scientific

Cabbing Rough and Slabs

Many of the names are varietal and do not indicate the actual mineralogical composition of the material.

Looking for Finished Cabs? - Please see our cabochons section

If there's anything you're looking for, please contact us. We have some slabs of interesting Franklin / Ogdensburg (NJ) material not shown on here.

Lapidary slabs are typically photographed wet, because the rough surface does not show the color well. The wet appearance simulates what it will look like with a good polish.

Assorted pieces - Lapidary bulk assortment including Quartz ("rock crystal"), Agate, Unakite, Obsidian, Jasper, Crazy Lace (?), and a couple of small pieces of Rhodochrosite. Almost 17 lbs of cabbing / slabbing / tumbling rough in all!

Some of the pieces (e.g., the crazy lace) are a bit oddly-shaped and would be expected to yield smaller cabs. You should be able to get at least one usable cutting out of each piece in this lot, with some pieces yielding considerably more.

Recommended shipping method: USPS Flat Rate box ($10.75, USA only). Nothing else will fit in the box. If you want to order anything else in the same order, please contact us and we can send you a Paypal invoice with all shipping calculated.

Pieces were photographed WET. Each picture shows different pieces. Lot includes contents of both photos (except for tray).

#L575 ... $30.00 for the lot

Assorted / Lot of 4 Slabs
Agate (variety unknown) - Mexico
Wonderstone (colorful banded rhyolite) - locality unknown
Rhodonite - Western USA
Azurite & Malachite - Tsumeb, Namibia

The azurite / malachite slab will make beautiful blue & green cabs, but it needs to be stabilized with epoxy resin (that part is up to you.)

You should be able to get at least 1 good cab out of each slab, probably more (depending on size).

#L576 ... $19.95

Jupiter Stone and
Stone Canyon Jasper - two slabs.  The Jupiter Stone (rhyolite) is from Chihuahua, Mexico.  The Stone Canyon Jasper is from California.
Slab size is about 8 to 8 1/4 inches maximum dimension.  The slabs are each approximately 1/4 thick.
Each slab has a couple voids here and there but has good expanses of solid, choice material.   You should be able to cut several good cabs from each one. 
Ship. wt. 2 lbs.
Slabs were photographed wet.

#L577 ... $15.00

agate slab for sale
Kona Dolomite
- Upper Peninsula, Michigan. Large slab, about 6 inches long x 3 inches wide x 1/4 inch thick. Unpolished. It was in a collection from at least 20 years ago. You should be able to make several nice & large cabs out of this nice slab.
Thanks to Dan from Michigan, who called and identified this material.

Slab is shown WET.

#L570.... $7.50

L560. Brazil agate slab, unpolished
Brazilian Agate
- Slab, unpolished, for cabbing, or for polishing and keeping as a display piece. This slab is UNDYED, all natural color. Slab was photographed WET to simulate what it will look like when polished. Thickness is 3/8 inch (+). Slab size approx. 4" x 7".
Ship wt. 1 lb.

#L560 ... $5.00

- Lake Valhalla, Montville, New Jersey. Closed locality. From an old collection. Three pcs, net wt. 1 lb 3 oz. Soft, cuts easily with carbide or diamond. Should be able to get at least one good cab out of each piece; the one on the right should yield 3 or 4 with little difficulty.
Material photographed DRY.
Color ranges from dull yellowish to yellowish-green.
Size: Avg. roughly 2 1/4" across.
Ship. wt. 1.3 lbs
#L571....$14.00 for the lot


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Avg. - averages / average

Cab, cabs -

FL, Fl, fl -
Fluorescent /
fluoresces / fluorescence

NF - Non-Fluorescent

SW - Short-Wave ultraviolet light
(254 nm)

LW - Long-Wave ultraviolet light
(ca. 350 nm)

PH - Phosphorescent

WL - White Light (normal light, sunlight,  "daylight")