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CR Scientific

Various minerals (A thru L)- this section is now TN thru CAB size.
(For Various M thru Z, click here.)

The MM and MT size minerals have been moved to their own page.

For an explanation of abbreviations used, please see our guide to mineral sizes.



Amethyst (r.) and Smoky Quartz (l.) - a pair of specimens.  Localities unknown.   Some terminations have chips / dings, but pieces are shelf displayable with no major detraction from overall appearance.
Sizes:  3"x3" (amethyst);  2 1/4" x 2" (smoky quartz).
Ship wt.  2.5 lbs.
#CR291 ... $20.00



amethyst specimen for sale
Amethyst (Quartz) - Thunder Bay, Ontario. Cluster of purple amethyst with some iron oxides. Size is approx. 3 inches across maximum dimension, with xtls to as much as 1 inch max. Nice display piece!
Ship wt. 1 lb.

#CR225 .... $39.00  Sale  $30.00



Click for larger image
Azurite.  Franklin, New Jersey. A thin coating of blue azurite on the typical fl. calcite matrix with dense franklinite. Azurite is very uncommon from either Franklin or Sterling Hill.
Disp. face about 4" x 2 1/2". Ship. wt. 1.8 lbs.
#CR260 ... $24.00





Brookite - Magnet Cove, Arkansas. Small brookite xtl with a larger, partial xtl on weathered quartz xtls. Also some smaller micro xtls of brookite. In a plastic box with label.
Max. dimensions of specimen approx. 1 1/2" x 1 3/4".
#CR185 ... $15.00 Clearance $7.00




Cerite-(Ce), Törnebohmite-(Ce), and Actinolite - Cerit Gruva, Bastnäs Mines, Riddarhyttan, Sweden. May also contain Ferriallanite-(Ce) and a couple other minerals. This one has nice actinolite sprays.
Max. dimensions 2 1/8" x 1 1/2" x 1".
#CR286 ... $15.00




Chrysocolla on Quartz - Blue Wing Mine, Granville County, NC.    Mostly thin coating on quartz.
Specimen size approx. 1 3/4" x 1 1/4". 
#CR289 ... $6.00



Calcite and scheelite specimen for sale Calcite with Scheelite and Fluorite - Hunan province, China. Beautiful CAB size display specimen of many sparkling calcite crystals. It is hard to appreciate them unless the specimen is seen in real life where it can be rotated in the light.
The many, tiny scheelite crystals fluoresce brilliant blue in short-wave UV (shown in right-hand photo), while the calcite has a very pale yellowish response. The fluorite crystals are visible with a hand lens but do not appear to fluoresce. Size: about 5 inches across longest diagonal, 4 inches wide x 3 1/2 inches tall. Calcite crystals to 1/2".
#F173 ... $50.00





Chrysocolla with Malachite - Kalukuluku Mine, Congo. Botryoidal blue chrysocolla with some green xtls of malachite.
Size approx. 2 1/4" x 2" x 1 1/2". Ship. wt. 1 lb.
#CR283 ... $35.00




Copper - Franklin, New Jersey. Native copper with green willemite and a pale tan mineral that resembles serpentine or perhaps ganophyllite.  There is also of course franklinite. There is a minor amount of a purple mineral that resembles hodgkinsonite (third photo).
Franklin native coppers like this don't come up too often on the market.
Size: the copper is about 4" long x 1 1/2" wide. The "ore" chunk on the end is about 1 1/4" x 1 1/4" x 1 3/4".
#CR279 ... SOLD



copper on prehnite specimen for sale Copper on Prehnite - Osceola #13 Mine, Houghton County, Michigan. Small xtls of copper on green prehnite. As with most of these we've seen, specimen has likely been acid etched to expose the copper, which at one time was embedded in calcite. A couple of the copper xtls are fairly well formed, with some definite xtl faces evident at 10x mag.
Overall specimen size is about 2 1/2 inches across largest dimension.
#CR04007 ... $15.00



Click for larger image

Fluorite, Sphalerite, & Galena on Dolomite -  Lime Crest Quarry, Sparta, New Jersey.  Closed locality, now underwater.  Specimen was found years ago in a Mississippi Valley Type (MVT) deposit that was in the quarry.  Good specimen of purple fluorite from New Jersey.   
This is a large specimen with good coverage of fluorite.  There are also moderate amounts of SW FL hydrozincite on lower front face. 
Size: approx. 5 1/2" x 4 3/4" x 3 1/2".
Ship. wt. 6 lbs.
#CR288 ... $75.00




Galena - Sterling Hill, Ogdensburg, New Jersey. Quite a rich specimen for this locality. The beige / tan layer on top of the galena is probably cerussite.
Size approx. 3 1/2" x 2 1/2" x 2".
Actual weight approx. 1 lb 4 oz.
#CR285 ... SOLD









Minerals, M thru Z

The MM and MT size minerals are on their own page.




Catalog
Fluorescent Minerals
Microminerals and Micromounts, A thru L
Microminerals and Micromounts, M thru Z
Minerals: Teaching, Reference, & Assortments
Minerals: Various, M-Z
Premium / Display Minerals





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