224 specimens selected...
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DZ3305 - Topaz with Smoky Quartz
Nercinsk District, Transbaikalia, Russia
small cabinet - 6.4 x 4.9 x 3.8 cm
$ AT-AUCTION
A classical topaz with muscovite and doubly terminated smoky quartz.
This piece was part of the Albert C. Burrage Collection, and was donated to Harvard 17 years after his death in 1931.
(click on an image to enlarge)
DZ3306 - Cuprite with Malachite Coating
Emke Mine, Onganja, Africa
miniature - 5.0 x 4.2 x 3.5 cm
$ 1000.00 SOLD
Classic malachite coated cuprites with associated carbonate minerals coating gossenous stalactites. The carbonate looks like smithsonite, but calcite is also prevelant at the mine.
(click on an image to enlarge)
DZ3307 - Siderite
Nova Lima, Minas Gerais, Brazil
small cabinet - 5.8 x 5.0 x 2.6 cm
$ AT-AUCTION
Semi-transparent siderite crystals with small white dolomite crystals on the back.
(click on an image to enlarge)
DZ3309 - Adamite
Ojuela Mine, Mapimi, Durango, Mexico
small cabinet - 6.6 x 3.8 x 2.9 cm
SOLD
Unusually large adamite crystals. The light tan color may be due to iron oxide inclusions
(click on an image to enlarge)
DZ3310 - Rutile on Kyanite
Graves Mountain, Lincoln County, Georgia USA
small cabinet - 5.8 x 4.5 x 3.3 cm
$ AT-AUCTION
Super lustrous twinned rutile crystal in a intergrown mass of kyanite crystals replaced by Fe/Mn oxides.
(click on an image to enlarge)
DZ1902 - Quartz Gwindel
Canton Uri, Switzerland
small cabinet - 9.1 x 7.0 x 5.7 cm
$ 750.00 DISCOUNTED 30.00% OFF TO $ 525.00 SOLD
This is a nice clear gwindel perched at an angle on a bed of smaller quartz crystals with rest on feldspar matrix.
(click on an image to enlarge)
DZ1903 - Tourmaline var. Elbaite
Mt. Apatite, Auburn, Maine
thumbnail - 3.1 x 1.0 x 0.4 cm
$ 300.00 DISCOUNTED 30.00% OFF TO $ 210.00 SOLD
An unusual flattened gem tourmaline crystal. Oddly, it only has five sides as if one half of the crystal is missing, yet the entire piece has natural crystal growth.
(click on an image to enlarge)
DZ1911 - Beryl var. Aquamarine & Muscovite
Nuristan, Afghanistan
cabinet - 10.1 x 6.6 x 5.0 cm
$ 600.00 DISCOUNTED 30.00% OFF TO $ 420.00 SOLD
Classic pegmatitc association of aquamarine and muscovite. The muscovite is mildly stained by iron oxide which could easily be removed (and improved!) with a quick bath.
(click on an image to enlarge)
DZ3501 - Arsenopyrite
Harding Vein, Carrock Mine, Caldbeck Fells, Cumbria, England, UK
small cabinet - 5.6 x 4.8 x 3.5 cm
$ AT-AUCTION
Arsenopyrite and quartz specimen collected by R. Barstow in August 1978.
(click on an image to enlarge)
DZ3502 - Cuprite
Rubtsovskiy Mine, Altaiskiy Krai, Siberia, Russia
small cabinet - 6.0 x 5.0 x 4.4 cm
$ AT-AUCTION
Two exceptionally large cuprite octahedrons in parallel growth. All of the faces appear to be in optical continuity.
(click on an image to enlarge)
DZ3505 - Apophyllite on Stilbite
Jalgaon, Northern Maharashtra, India
small cabinet - 6.7 x 5.9 x 5.6 cm
$ AT-AUCTION
Here we have an unusual situation; a single apophyllite crystal surrounded by a garland of stilbite.
(click on an image to enlarge)
DZ3507 - Almandine Garnet
Marawitza, Hungary
small cabinet - 6.8 x 5.4 x 3.6 cm
$ 75.00 SOLD
Here is a great specimen for the geologist who loves skarn deposits. A matrix of what looks to be tremolite is rimmed by lustrous almandine garnets with a small calcite for contrast. The only drawback being the saw cut surface on the left side of the specimen.
(click on an image to enlarge)
DZ3509 - Biotite
Craftsbury, Vermont, USA
small cabinet - 8.3 x 5.8 x 4.1 cm
$ 225.00 DISCOUNTED 30.00% OFF TO $ 157.50 SOLD
An unusual spherical mass of biotite from what must be a biotite gneiss.
ex S. & J. Cares collection
(click on an image to enlarge)
DZ5302 - Beryl var. Aquamarine
Minas Gerais, Brazil
miniature - 4.5 x 4.5 x 4.4 cm
$ AT-AUCTION
A highly etched, gemmy aquamarine crystal with a really unusual hole at the top that must be the result of some form of growth inhibition. It has an unusual shape, yet it is all crystallized.
(click on an image to enlarge)
DZ5303 - Beryl var. Aquamarine
Doi Ty Mine, Thuong Xuan District, Thanh Hoa Province, Vietnam
miniature - 3.9 x 1.5 x 1.2 cm
$ AT-AUCTION
Aquamarines from Vietnam are perhaps my favorite of all localities due to the deeply saturated blue color. This is an exceptonal example from the locality.
(click on an image to enlarge)
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