Item: 7965 Locality: Morro Velho Mine, Minas Gerais, Brazil
From the Morro Velho Gold Mine in Brazil, a beautiful group of quartz with Dolomite, some Siderite, and minor sulphides. Very dramatic specimen. Better than most museum specimens for Quartz, very fine. .
Item: 7992 Locality: Morro Velho Gold mine, Minas Gerais, Brazil
Really complex piece with flawless gemmy Quartz crystals in scattered group on matrix of Dolomite, minor Siderite and minor Pyrrhotite crystals. Very aesthetic, from the deepest gold mine in South America.
Beautiful group of transparent quartz with intergrowth of microcline at base. Excellent pegmatite specimen from the king country of pegmatite minerals. Weight is about 5 lbs. so nominal shipping surcharge will apply
Very rare specimen of a Quartz crystal cloaked in crystallized Pyrite with only a portion of the the Quartz revealed. Formerly in the Victor Yount collection, traded to Jack Lowell , and then later sold to Dave Daniel. A very fine specimen.
Very aesthetic, 5 sharp clear-to-translucent quartz xls w/ some light hematite staining, contrasted with sharp, dark hematite rhombs. Contact in back does not detract. From the Dave Daniel Collection, previously from Rob Lavinsky.
Perfect doubly terminated Quartz with smaller one, with an interior like a micro circus. Turn it around and sideways and the trapped solid Hydrocarbon inclusions float in liquid and gas bubbles float upwards inside the bubbles. This is a carnival inside a crystal.
An extremely rare Amethyst specimen, purchased in Brazil by Jack Lowell in 1973, on his first trip to Brazil, from the famous jewelry designer Haroldo Burle Marx. It began growth as a colorless enlongated prism, and at a later time formed a deep reddish purple tip with several smaller Amethyst crystals of the same color. It came from a pegmatite, which is a rare geologic origin for
One of the finest Rose Quartz specimens found at Parun, Nuristan, Afghanistan in the 90's. A terminated colorless Quartz floating in a halo of deep reddish Quartz crystals. Displays well from all angles, from the Dave Daniel collection, previously purchased from us.
Intricate growth of brilliant quartz crystals and one Amethyst crystal with small calcite crystals and two unknown minerals, one a copper mineral, the other a dark finely crystallized mineral. For an additional
$35 we will have it analyzed. This piece is very aesthetic with several display angles.
Very rare transparent quartz crystals with irridescent orange rhombonedral faces with green accents. difficult to photograph, but most crystals show the effect when rotated in light source. We will include a copy of the 1950 scientific paper on this discovery by Sir CV Raman.
Of all the Rainbow Quartz we have received, this piece has the best "lights" of all. Many crystals at once show green, orange, or blue neon faces. Very rare specimen. The optical phenomena (Irridescent faces in Quartz) was first described by CV Raman in 1950. We can give you a copy of the article in the Indian Academy of Sciences.
AAA Rainbow Quartz. Only from India, this quartz was first described in an article in the Indian Journal of Sciences CRYSTALS OF QUARTZ WITH IRIDESCENT FACES by sir C. V. raman who also discovered Raman Spectroscopy.(From the Raman Research Institute, Bangalore) Received May 10, 1950. Hard to photograph the intensity of the green blue and orange colored face reflec
Electric lights mimiced by this rare quartz that is dauphine twinned with polysynthetic twinning that causes color refraction or irridescence on most crystals. Resembles neon lights. Very rare to be in this quality. Way better in person because it's hard to photograph, but as you tilt the specimen different sets of crystals light up. Guaranteed to amaze.
Extremely rare and fine specimen of Irridescent Quartz. One portion is a cast of quartz deposited over once was a calcite crystal 2 inches in size. As specimen is rotated in light, the crystals show strong green lights across the entire crystal face, resembling electric neon lights. One of the best specimens of Rainbow Quartz in the world. $16 shipping charge in the US.
Very rare smoky quartz group with tapered shaped xls. Jack bought a small lot of these in a tiny one room shack in southern Bahia in 1978. There were small colorless beryls on some the quartzes. All were shaped in this tapered fashion.
A very rare occurence of a zeolite on smoky quartz. The piece on the other side is a very aesthetic group of extremely black, brilliant smoky quartz crystals, with curved faces. There are also two unidentified minerals in micro size, green transparent acicular crystals, and the other laumontite, perhaps. The specimen is two in one, a beautiful smoky quartz group, and on the other side sharp orange
Museum caliber specimen of Smoky Quartz from a pegmatite, showing "crocodile growth" on all sides. Has one feature of a tiny radioactive inclusion with a halo of smoky color around it. One of the finest Quartzes we have ever seen, this was sold to Dave Daniel in 2004. It is in perfect condition, very brilliant, and has infinite display possibilities. Click on picture to
Single crystal with reverse scepter shape, very complexly terminated. Flawless. One of the finest single Quartz crystals we have ever had, from Jack Lowell's personal collection. Light smoky/citrine color