Mineral Gallery
by The Rock Shed

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Minerals

Item Description          Click Any Picture for Larger Image

mineral
 

$200.00

  

GAL900B  STIBNITE    

Here is an interesting find.  This is an exceptional specimen of Stibnite with Druzy Quartz from China.  It has sparkly Grey metallic colored crystals going in all directions with cool splatters of the Druzy Quartz giving it a unique appearance.  The specimen measures 4 7/8" x 3 1/4" x 1 5/8" and makes for an interesting display of an unusual mineral.

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Stibnite, also known as Antimonite, is a Sulfide mineral that forms grey Crystals.  It is the most important source for the rare Metalloid Antimony.  It is used in the manufacture of fireworks, batteries, safety matches and mascara.

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

$800.00

 

GAL903B  CRYSTAL QUARTZ   

Here is an exceptional Crystal Quartz cluster from China.  This unique and absolutely gorgeous cluster has a multitude of different shaped  Crystal formations protruding in all directons.  This exquisite Crystal Quartz cluster rests without a stand or base and has areas of rainbow iridescence.  It measures approximately 13 1/2" x 10 1/2" x 10", weighs nearly 29 1/2 pounds and has not been polished.  Although we go to great lengths to package properly for shipping, due to the nature of it's many small crystals some may dislodge or break off. Not to be alarmed they truly will not be missed. It's also advisable to wear thick gloves when handling and moving due to it's weight the many sharp crystals can cause cuts in hands.  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

$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

$200.00

 

GAL905B  FLUORITE   

Here is an excellent example of top quality Fluorite from China. This  brilliant specimen has a gorgeous Emerald Green color loaded with very cool "cubed" shape crystal.  It  measures 5 3/4" x 3 3/4" x 2 1/8" and has not been polished. It has exceptional clarity, neat inclusions and even "rainbow" reflections. Take note of last photo how it changes under a UV/LW light.  Absolutely stunning!!!

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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

 

GAL906C  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 5 5/8" x 3 1/2" x 2 1/2" 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

$300.00

 

GAL907B  BARITE  

This is an exceptional piece of Barite from Morocco. This unusually large specimen measures 7 1/2" x  5" x 2 7/5" and weighs nearly 6 1/2 pounds. It has fabulous clarity, great design and even some "rainbow" reflections. An item like this does not come around that often so grab it qick.
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Barite is a mineral consisting of Barium sulfate and is generally white or colorless. It is used in the manufacture of paints and paper. Although Barite contains a 'heavy' metal, Barium, it is not considered to be a toxic chemical because of its extreme insolubility.
 

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

$170.00

 

GAL909B  PYRITE 

This is a splendid Spanish Pyrite specimen from the Navajun Mine, Piritas De Navajus S.L., Spain.  This very interesting specimen has a large excellent quality Pyrite cube in matrix as well as two more small cubes.  The largest shiny Pyrite cube measures approximately 1 1/2" x 1 1/4" x 1 1/4".   The smallest cube is 1/4" square.  The entire specimen measures 3 1/8" x 4" x 4 1/4" overall and weighs nearly 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

$170.00

 

GAL910b  STILBITE - APOPHYLLITE 

 This exceptional combination of Zeolite minerals is a dazzling beauty. There are nearly clear Apophyllite crystals of different sizes mixed in with the lovely Peach colored Stilbite sheaves all on an interesting matrix giving unmatched character. The sparkly clear Apophyllite crystals have great clarity and lovely inclusions contrasting the Peach Stilbite.  The marvelous combination piece measures almost 9 3/4" x nearly 5 5/8" wide x almost 3 3/8" tall and weighs over 6 pounds.  A very nice majestic specimen that makes a unique display item.

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Stilbite is another Silicate mineral from the Zeolite family.  It is often characterized by its sheaf like aggregates.  The color is usually white or pink and when the cleavage is perfect, will have a distinct pearly luster.

Apophyllite, also a Zeolite, is Silicate mineral with very well defined clear Crystals and is very popular as a collector's mineral.  The Crystal structure will refract like in obvious rainbows and can form "natural pyramids" when tumbled.

 

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 exceptional items that pictures just cannot give 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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