Colorado Gem & Mineral Co. - Rocks for the Rest of Us

Quartz

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Rainbow Quartz
Item: 4816
Locality: Poona, India
L: 3.00in
W: 2.00in
H: 2.00in
Weight: 0.00kg
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.
$165.00
Rainbow Quartz
Item: 5664
Locality: Mahdya Pradesh, India
L: 3.00in
W: 2.50in
H: 1.00in
Weight: 0.00kg
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.
$265.00
Rainbow Quartz
Item: 9195
Locality: Madiyah Pradesh, India
L: 2.20in
W: 1.75in
H: 1.75in
Weight: 0.00ct
Stalactite of AAA Rainbow Quartz, with entire faces of electric blue, green, and orange, depending on light source.  Very strong and visible effect of Adularescence that is difficult to photograph, most Rainbow Quartz is like this.  It is much better in person.   This is a top quality specimen and will amaze you and everyone else with it's electric colors.
$145.00
Rainbow Quartz
Item: 9197
Locality: Mahdya Pradesh, India
L: 4.50in
W: 2.75in
H: 2.00in
Weight: 0.00ct
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
$95.00
Rainbow Quartz
Item: 9204
Locality: Madhya Pradesh, India
L: 3.25in
W: 1.75in
H: 1.50in
Weight: 0.00ct
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.
$65.00
Rainbow Quartz
Item: 5552
Locality: Madiyah Pradesh, India
L: 2.50in
W: 1.50in
H: 1.50in
Weight: 0.00kg
Very rare adularescent quartz, first described by CV Raman in the Indian Academy of Sciences. Crystal faces have neon colors of red, orange, green and blue.
$85.00
Rainbow Quartz Geode
Item: 6241
Locality: Mahdya Pradesh, India
L: 7.00in
W: 6.00in
H: 4.00in
Weight: 0.00kg
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.
$550.00
Rose Quartz (crystallized)
Item: 3902
Locality: Paroon, Nanhargar Province, Afghanistan
L: 3.00in
W: 2.50in
H: 1.50in
Weight: 0.00ct
Nice formation of crystallized Rose Quartz on colorless Quartz crystal, rare locality
$235.00
Rose Quartz (crystallized)
Item: 5021
Locality: Taquaral, Minas Gerais, Brazil
L: 2.50in
W: 1.60in
H: 1.25in
Weight: 0.00
360 degree halo of deep pink Quartz crystals around a misshapen, terminated smoky Quartz
$120.00
Rutilated Quartz
Item: 8653
Locality: Bahia, Brazil
L: 2.00in
W: 1.25in
H: 1.00in
Weight: 0.00ct
Quartz crystal with parallel golden blades of Rutile. 
$45.00
Rutilated Quartz
Item: 5795
Locality: Zagi Mountain, Peshawar District, Pakistan
L: 4.00in
W: 3.00in
H: 2.50in
Weight: 0.00
Very fine Citrine Quartz with coarse black Rutile crystals inside.
$225.00
Rutilated Quartz
Item: 8648
Locality: Bahia, Brazil
L: 3.75in
W: 2.25in
H: 1.50in
Weight: 0.00ct
Citrine Quartz crystal with rays and curving threads of Rutile.  Fine condition.
$175.00
Scepter
Item: 32051
Locality: Minas Gerais, Brazil
L: 2.50in
W: 1.50in
H: 1.50in
Weight: 0.00
Brilliant scepter with some albite and muscovite
$60.00
Scepter formation
Item: 2545
Locality: Diamond Hill Mine, Antreville, South Carolina, USA
L: 5.00in
W: 4.00in
H: 2.50in
Weight: 0.00
Pale amethyst in complex group, scepter growth, rare specimen. Mined over 30 years ago.
$225.00
Scepter Quartz
Item: 2542
Locality: Espirito Santo, Brazil
L: 5.25in
W: 5.00in
H: 3.00in
Weight: 0.00
Very fine scepter with very large water bubble easily visible. Smoky with colorless shaft.
$265.00
Smoky Quartz
Item: 5278
L: 5.00in
W: 4.00in
H: 3.00in
Weight: 0.00
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
$265.00
Smoky Quartz
Item: 5279
Locality: Rizhao,Shandong Province,China
L: 3.00in
W: 1.25in
H: 1.25in
Weight: 0.00
Exquisite single dark smoky quartz with complex crystal form on all sides. A beauty.
$85.00
Smoky Quartz
Item: 2699
Locality: Bahia, Brazil
L: 2.50in
W: 1.25in
H: 1.00in
Weight: 0.00
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.
$40.00
Smoky Quartz
Item: 2540
Locality: Minas Gerais, Brazil
L: 3.00in
W: 2.00in
H: 1.50in
Weight: 0.00
Parallel formation of brilliant crystals from pegmatite, scuptural
$45.00
Smoky Quartz
Item: 32104
Locality: Minas Gerais, Brazil
L: 5.00in
W: 5.00in
H: 2.00in
Weight: 0.00
Tabular see through smoky quartz with interesting hopper faces, dramatic 2 lbs for shipping.
$65.00
Smoky Quartz
Item: 2621
Locality: Minas Gerais, Brazil
L: 6.00in
W: 5.00in
H: 3.00in
Weight: 0.00kg
Parallel deep brilliant smoky quartz on colorless quartz, very aesthetic, some very tiny dings on tips, large water bubble easily visible.  Excellent specimen.
$265.00
Smoky Quartz
Item: 8860
Locality: Lake George, Teller County, Colorado
L: 3.00in
W: 1.50in
H: 1.50in
Weight: 0.00ct
Collected by Colorado native Carl Holzer, this Smoky Quartz has branches coming off the main crystal creating a rocket ship look.  Beautiful geometry.  Click photo to see other view.
$105.00
Smoky Quartz
Item: 2738
Locality: Minas Gerais, Brazil
L: 3.00in
W: 3.00in
H: 3.00in
Weight: 0.00
Very rare formation that we have to call the zigzag. Actually a scepter.
$105.00
Smoky Quartz
Item: 5276
Locality: Rizhao,Shandong Province,China
L: 4.50in
W: 3.00in
H: 2.00in
Weight: 0.00
Jet black brilliant Smoky Quartz from new discovery in China.
$135.00
Smoky Quartz (Crocodile Quartz)
Item: 8961
Locality: Brandberg Mtn. Namibia
L: 4.00in
W: 2.50in
H: 1.50in
Weight: 0.00ct
Brilliant formation of parallel growth Smoky Quartz.  Very aesthetic.
$95.00
Smoky Quartz on Microcline with epidote
Item: 7868
Locality: Rizhao,Shandong Province,China
L: 6.00in
W: 3.00in
H: 2.50in
Weight: 0.00ct
Brilliant complexly formed Smoky Quartz crystals on feldspar crystals with patches of small epidote crystals.  Very aesthetic.  Several display options.
$95.00
Smoky Quartz on Quartz
Item: 6893
Locality: Minas Gerais, Brazil
L: 6.50in
W: 5.00in
H: 3.00in
Weight: 0.00
Three brilliant doubly terminated Smoky Quartz in parallel formation on colorless quartz, very fine specimen, many display directions. Museum quality. Dramatic.
$395.00
Smoky Quartz Scepter
Item: 2627
Locality: Minas Gerais, Brazil
L: 3.75in
W: 2.00in
H: 1.50in
Weight: 0.00
Brilliant offset scepter. Very aesthetic specimen.
$55.00
Smoky Quartz Scepter
Item: 4978
Locality: Minas Gerais, Brazil
L: 7.50in
W: 2.00in
H: 1.00in
Weight: 0.00
Doubly terminated elongated crocodile quartz, nearly a floater. Excellent crystal. Curved, very unusual.
$175.00
Smoky Quartz Scepter
Item: 8889
Locality: Brandberg Mtn. Namibia
L: 3.25in
W: 1.90in
H: 1.25in
Weight: 0.00ct
Complex scepter growth Smoky Quartz with brilliant faces with small amount of feldspar still attached.  Beautiful form.  Slight Amethyst phantom.
$120.00
Smoky Quartz Scepter in Orthoclase
Item: 8955
Locality: Brandberg Mtn. Namibia
L: 5.50in
W: 2.00in
H: 2.00in
Weight: 0.00ct
Complex Scepter with Smoky and Amethyst phantoms.on crystallized Orthoclase crystals.  Architectural.
$95.00
Smoky Quartz Scepter, var. Crocodile Quartz
Item: dd13
Locality: Minas Gerais, Brazil
L: 7.60in
W: 3.50in
H: 3.30in
Weight: 0.00ct
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
$2,750.00
Smoky Quartz Scepter/amazonite
Item: 2731
Locality: Crystal Peak, Colorado
L: 3.00in
W: 2.00in
H: 1.50in
Weight: 0.00
Rare scepter showing backside with fragment of amazonite of excellent color.
$45.00
Smoky Quartz Scepters
Item: 8953
Locality: Brandberg Mtn. Namibia
L: 3.50in
W: 2.75in
H: 1.50in
Weight: 0.00ct
Parallel scepters of Smoky Quartz in formation on slab of colorless Quartz also with parallel growth.  Aesthetic.
$85.00
Smoky Quartz with Amazonite
Item: 3424
Locality: Lake George, Teller Cnty, Colorado
L: 4.50in
W: 2.00in
H: 1.25in
Weight: 0.00
Two parallel Smoky Quartz with an Amazonite crystal of the best color at base. Collected recently.
$255.00
Smoky/Citrine Quartz
Item: 8711
Locality: Minas Gerais, Brazil.
L: 3.50in
W: 1.40in
H: 1.40in
Weight: 0.00ct
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
$225.00
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