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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.  For more display minerals, 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.

Click for larger
var. Cuproadamite
Mina Ojuela
Durango, Mexico

Crystals of adamite, ranging from colorless to green, in a rust-red limonitic matrix. 

Size:  About 1 1/2" x 1" x 3/4" ("toenail" or small miniature size)
Ship. wt. 0.3 lb

#CR189 ... $9.95

amethyst specimen for sale
Amethyst (Quartz) - Thunder Bay, Ontario. Cluster of purple amethyst with some iron oxides.  This one displays well.

Size:  approx. 3 inches across maximum dimension, with xtls to as much as 1 inch max.

Ship wt. 1 lb.

#CR225 ....$25.00  SALE  $15.00

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 ... SOLD

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 $5.00

with "Stilpnosiderite"
Monroe County, Iowa

Cerite-(Ce), Toernebohmite-(Ce), and Actinolite - Cerit Gruva, Bastnaes 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 ... SOLD

Chrysocolla on Quartz
Blue Wing Mine
Granville County, NC

Mostly thin coating on quartz.

Size:  approx. 1 3/4" x 1 1/4" (Miniature)

#CR289 ... SOLD

Calcite and scheelite specimen for sale

with Scheelite and Fluorite
Hunan province, China

Beautiful cabinet-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.  They 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".
Ship. wt.  2 lbs.

#F173 ... $50.00

Chrysocolla with Malachite
Kalukuluku Mine

Botryoidal blue chrysocolla with some green xtls of malachite.   A beautiful specimen which could quite easily be twice this price (or more) if offered by other dealers. 

Size approx. 2 1/4" x 2" x 1 1/2".
Ship. wt. 1 lb.

#CR283 ... $35.00

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.

Size:  overall specimen size is about 2 1/2 inches across largest dimension
Ship. wt. 0.5 lb

#CR04007 ... $15.00

Hematite, Calcite, & Magnetite / Franklinite
Franklin, New Jersey

Xtls. of calcite with metallic gray hematite, atop a layer of solid magnetite-franklinite.

Note the hematite layer that demarcates the two zones of this rock.

Size:  approx. 1 3/4" x 1 1/2" x 1 1/2" (Miniature)
Ship. wt. 1 lb.

#CR303 ... $15.00

Minerals, M thru Z

Microminerals and Micromounts are on their own page.

See below for more categories.



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

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