Mineral Gallery
by The Rock Shed

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Minerals

Item Description          Click Any Picture for Larger Image

mineral
 

$125.00

  

GAL900c  AZURITE - MALACHITE    

This is an absolutely gorgeous specimen of Azurite with Malachite on matrix from Morocco. This exceptional piece has many rich Dark Blue and other Blue colors accented by the green Malachite and Reddish Brown in the matrix.  It measures almost 4 3/4" x 2 7/8" x nearly 2 3/4" and weighs nearly 1 1/2 lbs.  This stunningly beautiful specimen is an awesome work of nature and makes an excellent display item.

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Azurite is a mineral belonging to the Carbonate group of minerals. It is commonly found with Malachite, Goethite and Calcite. It is typically associated with Copper deposits including Limestone which is the source of the Carbonate.

Malachite is a Copper Carbonate mineral that often forms botryoidal, fibrous or stalagmitic masses.  It is often the result of the weathering of Copper Ores and is commonly found with Azurite, Goethite and Calcite.  It is typically associated with Copper deposits including Limestone which is the source of the Carbonate.  Malachite is found in many regions world wide and is usually shaded green in color.

 

mineral

$175.00

 

GAL901c  PYRITE  

This is a splendid Spanish Pyrite specimen from the Navajun Mine, Piritas De Navajus S.L., Spain.  This very interesting specimen has 3 large excellent quality Pyrite cubes in matrix and evidence where 2 more were once attached.  The largest shiny Pyrite cube measures 1 1/16" x 1 3/16" x 1 1/16".   The smallest cube is over 3/4" x nearly 15/16" x 13/16" and the other cube being 1" x 15/16" x 15/16".  They rest in matrix measuring 4 3/4" x almost 4" x nearly 3" overall and weighs just over 2 pounds.  Very, very cool!!
 

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Pyrite, or Iron Pyrite, is an Iron sulfide with isometric Crystals that usually appear as cubes.  It is brittle and can break or powder easily.  Its metallic luster and brass yellow hue have earned it the nickname of "fool's gold" due to many miners mistaken it for the real thing.  Ironically, small quantities of actual gold are sometimes found in Pyrite.  It is the most common of the sulfide minerals and is usually found with other sulfides or oxides in Quartz veins, sedimentary or metamorphic rocks. 
 

 mineral

$100.00

 

GAL902c  CELESTITE     

This is an exceptionally beautiful light blue specimen of Celestite from Madagascar. This large Celestite specimen has many, many very nicely defined and sparkly crystals inside. The pictures don't really do it proper justice but be sure to click on each for the full size version. The stunning specimen measures 7" x almost 4 3/4" x nearly 3 1/8" and weighs over 3 3/4 pounds.  This piece is absolutely awesome.

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Celestite is a mineral form of Strontium Sulfate which is a metal.  The metal is mixed with Carbon and Sulfur which is used for the red "fire" in fireworks, flares and road signals.  Celestite occurs as Crystals and in compact massive and fibrous forms.  It is mostly found in sedimentary rocks and is often associated with Gypsum, Anhydrite and Halite.  Pale blue Crystal specimens are found in Madagascar. 

 

mineral

$435.00

 

GAL903b  CITRINE   

This large breathtaking specimen of a Citrine Crystal Geode is from Brazil.  The spectacular deep geode cavity is filled with different size crystals of naturally sparkly Honey Gold Citrine.  It measures nearly 17" x almost 10" x 7 3/4" and weighs almost 29 1/4 pounds.  This true beauty was part of an even larger Geode that was broken down to show the lovely inner Citrine Crystals.  The edges where the geode was broken open are not smoothed or polished and the geode exterior is left all natural as well.  This is a beautiful and colorful work of nature. 

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Citrine is any Quartz Crystal or cluster that is yellow or orange in color.  Most Citrine, usually begins as Amethyst which becomes yellow due to heat treatments.  True Citrine is often rarer but is hard to distinguish from the heat treated variety.  It is widely distributed as a mineral, but fine, clear specimens that are suitable for cutting as ornamental stones.

 

mineral

$2000.00

 

GAL904c  TANTALUM  - COLUMBITE

Here is a superb combination specimen of a Tantalum and Columbite crystal on matrix from the long closed Etta Mine near Keystone, South Dakota. This extraordinary piece has the very large Tantalum crystal that shows it's dull dark color and interesting surface characteristics.  The attached lighter colored matrix appears to be comprised of Quartz and Sodaspar.  The outstanding specimen was originally one large Tantalum crystal, one of the largest we've ever seen, but has broken into several sections and glued back together.  The exceptional crystal measures 6 7/8" x 5 1/2" x nearly 1 5/8" thick.  Overall the specimen is over 6 7/8" x 6 7/8" x 4 1/8" and weighs a heavy 8 1/4 pounds.  This stunning specimen is an awesome work of nature.

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Tantalum is a gray, hard, rare, metallic element occurring in columbite and tantalite and usually associated with niobium: used, because of its resistance to corrosion by most acids, for chemical, dental, and surgical instruments and apparatus.  Columbite forms a series with the mineral tantalite.  In fact the two are often grouped together as a semi-singular mineral called columbite-tantalite in many mineral guides. The minerals of the Columbite/Tantalite families are difficult to distinguish from each other without sophisticated tests.  The combination is also called Coltan; short for columbite–tantalite and known industrially as tantalite.

 

mineral

$250.00

 

GAL905c  SMOKEY QUARTZ CRYSTAL   

This is an exceptional quality Smokey Quartz Crystal from Brazil.  This unbelievable example has multiple facets, some of which have additional crystal growth skeletons visible.  Those features lead some to classify this incredible specimen as a desirable Elestial Smokey Quartz Crystal.  The quite dark crystal has better clarity around the lower portion showing inclusions that don't show up well in the pictures.  This gorgeous piece measures approximately 7 1/2" x 7 3/4" x nearly 5 1/2" tall and weighs 9 pounds.  With close inspection, there are a couple minor dings on a few of the crystal edges.  This incredible specimen is unmatched from whatever direction you choose to view it.

Even though pictures cannot do this exceptional piece justice, be sure to look at all of them - click on each picture below to see the full size version.  Just an absolutely beautiful item. 

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Quartz is the second most common mineral in the Earth's continental crust.  It is mainly composed of Silica or Silica based minerals.  Although Quartz is known by a variety of names, the most important distinction between types of Quartz is that of macro-crystalline, individual crystals visible to the unaided eye, and micro-crystalline, where aggregates of crystals are only visible under high magnification.  There are many forms of Quartz including Chalcedony, Amethyst, Citrine, and Carnelian which are results of mineral impurities or heat treatments.

 

mineral

$85.00

 

GAL906b  VANADINITE 

Here is a beautiful specimen of Vanadinite on matrix.  This unique piece has sparkly Red and burnt Orange colored hexagonal Vanadinite crystals that transition to ones of more of a Brown and Tan color.  It measures 4 1/2" x nearly 3 3/8" x 3 3/8" and weighs nearly 1 1/2 pounds. This is an astonishing work of nature and very fragile. This mineral is from Morocco.

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Vanadinite is a mineral belonging to the Apatite group of Phosphate minerals. It is one of the main industrial Ores of the metal Vanadium and a minor source of Lead. Vanadinite is relatively uncommon and is associated with Galena, Wulfenite, Limonite and Barite. It is usually bright red or orange-red in color although it may sometimes be brown, red-brown, grey, yellow or colorless.

 

mineral

$225.00

 

GAL907b  CROCOITE  

This is an exceptionally spectacular example of a rare new item, Crocoite from the Adelaide Mine, Dundas, Tasmania, Australia.  It has delicate, long prismatic crystal needles of vivid orange-red colors in an exceedingly gorgeous cluster.  The fabulous specimen measures almost 3 1/4" wide x nearly 2 1/2" x approximately 1 3/8" and is mounted in a clear plastic display box.  A very nice unique specimen that makes a incredible display item.
 

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Crocoite is a mineral consisting of lead chromate that fascinates collectors. First found in Russia and other European localities, but only sparingly and with very small crystals. The Australian discovery on the island of Tasmania too this mineral to a totally different level with large brilliant, well formed crystals and far more abundant. Crocoite is commonly found as large, well-developed prismatic crystals, although in many cases are poorly terminated. Crystals are of a bright hyacinth-red color, translucent, and have an adamantine to vitreous luster. 
 

mineral

$1200.00

 

GAL908c  CRYSTAL QUARTZ

Here is an extra large example of a spectacular quality Crystal Quartz cluster from Arkansas.  This unique and absolutely gorgeous cluster has numerous different Crystal formations including barnacles, cathedrals, lasers, manifests, and tabular sections.  This exquisite Crystal Quartz cluster rests without a stand or base and has many areas of rainbow iridescence.  It measures approximately 13" x 10 1/2" x 5 1/2", weighs almost 19 1/2 pounds and has not been polished.  Just absolutely fabulous!!
 

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Quartz is the second most common mineral in the Earth's continental crust.  It is mainly composed of Silica or Silica based minerals.  Although Quartz is known by a variety of names, the most important distinction between types of Quartz is that of macro-crystalline, individual crystals visible to the unaided eye, and micro-crystalline, where aggregates of crystals are only visible under high magnification.  There are many forms of Quartz including Chalcedony, Amethyst, Citrine, and Carnelian which are results of mineral impurities or heat treatments.

 

mineral

$250.00

 

GAL909b  VANADINITE 

This splendid specimen of Vanadinite on a creamy color matrix is from Morocco. This astounding piece has many bright Red and burnt Orange colored hexagonal Vanadinite crystals of all sizes.  On the opposite side, the crystals take on more of a Brown color. Be sure to look at the full sized version of each view including the close-ups. It measures 4 7/8" x nearly 3 1/4" x almost 2 3/8" and weighs over 1 1/2 pounds. This remarkable specimen is an unmatched work of nature at it's finest. 

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Vanadinite is a mineral belonging to the Apatite group of Phosphate minerals. It is one of the main industrial Ores of the metal Vanadium and a minor source of Lead. Vanadinite is relatively uncommon and is associated with Galena, Wulfenite, Limonite and Barite. It is usually bright red or orange-red in color although it may sometimes be brown, red-brown, grey, yellow or colorless.

 

mineral

$60.00

 

GAL910c  SCOLECITE - STILBITE - APOPHYLLITE 

 This exceptional combination of Zeolite minerals is a dazzling beauty. There are nearly clear acicular Scolecite crystals mixed in with the lovely Peach colored Stilbite sheaves and has pale Green Apophyllite crystals around the outer edges giving unmatched character. The marvelous combination piece measures almost 6 1/8" x nearly 4 1/8" wide x almost 3" tall and weighs 2 pounds. A nice majestic specimen that makes a unique display item.

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Scolecite is a hydrated calcium silicate mineral belonging to the Zeolite group. It commonly occurs as sprays of thin, prismatic needles, frequently flattened on one side. Scolecite is usually colorless or white, but can also be pink, salmon, red or green. It is transparent to translucent, with a white streak and a luster which is vitreous, or silky for fibrous specimens. Scolecite is a common Zeolite often found with associated minerals including quartz, Apophyllite and Stilbite. 

 

mineral

$275.00

 

GAL911b  CELESTITE 

 Here is an exceptionally nice Blue Celestite Geode from Madagascar.  This very interesting and very beautiful Geode has a very detailed Blue interior filled with many, many well-defined and sparkly Crystal points of different sizes.  There is one large crystal that is nearly 1 3/4" x 1 1/4".  The awesome specimen overall measures over 8" x nearly 7" x nearly 4 1/4" overall and weighs just over 14 pounds.  This stunning specimen is an awesome work of nature.

This is one of those items that pictures just cannot give this exceptional piece proper justice.  Be sure to look at the different views - click on each picture below to see the full size version.

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Celestite is a mineral form of Strontium Sulfate which is a metal.  The metal is mixed with Carbon and Sulfur which is used for the red "fire" in fireworks, flares and road signals.  Celestite occurs as Crystals and in compact massive and fibrous forms.  It is mostly found in sedimentary rocks and is often associated with Gypsum, Anhydrite and Halite.  Pale blue Crystal specimens are found in Madagascar. 

 

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