Adularia is a potassium (K) Feldspar like Microcline and Orthoclase. This specimen is a rare example of a Faden or string of crystals formed in a chain. The darker rhombs are Siderite crystals. Click on photo to see backside.
Item: 2408 Locality: Lake Melones, Calaveras County, California
L: 4.00in
W: 2.50in
H: 1.75in
Weight: 0.00
Very sharp flawless quartz and smaller ones on matrix of
well-formed albites that cover both sides of the plate.
Some epidote crystals too. Excellent locality specimen.
Exceptional group of vivid blue Amazonite crystals with great form. One of our very best.
Proefssionally repaired 3 times, typical of this locality because of the seasonal freezing and thawing.
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Item: a144 Locality: Harris Park, Park Co. Colorado
L: 2.00in
W: 1.25in
H: 1.00in
Weight: 0.00ct
Unusual association of deep blue Amazonites with selective deposition of Albite, with Smoky Quartz and drusy Orange Quartz. Excellent specimen for even the advanced collector who already has Amazonite.
Item: b196 Locality: Crystal Peak, Teller County, Colorado, USA
L: 4.00in
W: 2.25in
H: 1.50in
Weight: 0.00g
Museum-quality specimen of well-formed, bright-blue Amazonite crystals with snow-white Cleavelandite. Great composition, classic.
Mined this season at premier Colorado locality.
DW
"Whitecap" Amazonite crystal with doubly terminated Quartz crystal on top. Architectural form with best possible color. Stashed since discovery in 2000.
Item: 30495 Locality: Yangangxian, Hunan Province, China
L: 1.15in
W: 0.63in
H: 0.75in
Weight: 0.00
1 crystal of Argentite with small bournonites. This is a very large Argentite! It does have damage in the back where it was attached to ? but displays very well. Quite a rare association."
Well formed Azurite crystals up to 3/8ths inch on white matrix , Indigo blue velvet on white makes these outstanding specimens to add color to your collection.
Doubly terminated Azurite crystal, floater, with deep blue color that is not too dark (like the Milpillas Azurite). This is the best single crystal of Azurite we have had. Click on photo to see other views.
Item: 9561 Locality: Liufengshan, Anhui Province, China
L: 3.00in
W: 2.00in
H: 1.25in
Weight: 0.00ct
Spectacular pocket of brilliant Azurite crystals with several areas of Malachite that accents the deep blue with a soft blue-green. Other pockets of Azurite on the backside.
Geode of brilliant deep blue Azurite crystals with some being replaced by chatoyant Malachite, one of mother nature's magic tricks, this will add color to your collection as well as geological interest. From the recent discovery in Laos.
Tabular Barite crystal with smaller ones on matrix, unusual greenish brown color, discovered in a road cut in northeastern Brazil, Piaui state. This is the largest crystal of the discovery.
Item: a764 Locality: Morro Velho Gold Mine, Minas Gerais, Brazil
L: 2.25in
W: 2.10in
H: 1.00in
Weight: 0.00ct
Perhaps the only Barite known from the Morro Velho Gold Mine, this is a gemmy, golden color. It has inclusions of Pyrrhotite and Gold crystals Important mineral specimen.
Item: 30382 Locality: Yaoganxian, Hunan Province, China
L: 3.00in
W: 2.00in
H: 1.50in
Weight: 0.00
Very rare specimen of purple-gray fluorite with inclusions of multicolored hairs of Bismuthinite. This one has also a mineral yet to be identified as a matrix as well as an array of inclusions inside the cubes.
Quartz vein with silver-bronze color Calaverite with micro crystals of Calaverite, Gold Telluride, a rare Gold mineral. Tellurium is one of the only other elements that Gold can combine with in nature. From the classic locality, Cripple Creek, Colorado, USA click on photo to see closeup picture.
Quartz rich metamorphic rock with Calaverite, silver-bronze colored crystals. Click on photo to see microscopic crystals. Calaverite is GoldTelluride, one of the only minerals that Gold combines with.
This Calcite vug was collected recently during construction of a new high rise in Mumbai, India. It is dark brown, almost black in color, showing two different habits of Calcite. Very rare.