Minerals from Different Locations

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M400b   This is something different for the mineral collector.  Here is an above average quality specimen of Sphalerite.  The unusual mineral measures 3 1/8" x 3" x 2" and has an interesting shape with a very shiny appearance.

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Sphalerite is a mineral that is the chief ore of Zinc.  It consists mainly of Zinc Sulfide in crystalline form but almost always contains valuable Iron.  When the Iron content is high, it is an opaque black variety called Marmatite.  It is usually found in association with Galena, Pyrite, Calcite, Dolomite and Fluorite.  It is usually yellow, brown or gray to gray-black in color and may have a shiny or dull luster or sheen.

Sphalerite

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Copper is a reddish colored metal with a high electrical and thermal conductivity.  It has its characteristic color because it reflects red and orange light and absorbs other frequencies in the visible spectrum due to its band structure.  It is in the same family as Silver and Gold and is a malleable metal.  It is beautiful natural or polished.

Copper-Quartz

M402c  This is a beautiful nice sized specimen of Celestite.  This lovely Celestite  has many, many very nicely defined and sparkly icy blue crystals.  It measures 4 1/2" x  4 1/4" x 2 1/2" and has not been polished.  The pictures don't really do it justice, this piece is 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. 

Celestite

M403b  This is a beautiful specimen of Blue Fluorite in matrix from an unknown location.  This outstanding specimen has the Blue Fluorite measures over 4 1/4" long x 3 3/4" x over 1" all on the creamy white and grayish matrix.  Just a fabulous and unusual combination specimen that makes an extraordinary addition to your collection.

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Fluorite, also referred to as fluor-spar, is a mineral composed of Calcium Fluoride.  It is a widely occurring mineral found world wide and is often found with metallic minerals such as Galena, Sphalerite, Barite, Quartz and Calcite.  Fluorite may fluoresce strongly in ultraviolet light which may be due to the presence of some impurities such as Yttrium.  Blue is the most common color but red, purple, green, yellow and white are also frequent.  It can be used in high performance telescopes, camera lens, enamels and in the making of opalescent glass.

Blue Fluorite

M404b  Here is something different for the mineral collector.  This is a very unique and rare specimen of multi-colored Bismuth.  The interesting specimen measures 3 5/8" x  1 3/4" x 1 3/4".  It has a colorful, shiny appearance and a lots of  character.  A very cool mineral.

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Bismuth is a native element but native crystals are extremely rare. Peru is one of the world's major sources. These crystals are grown in laboratories in the United States. Bismuth is scarce as Silver, heavier than Lead and is classified as a semi-precious semi-metal. It is non-toxic to humans. It is used in medicine and cosmetics, applications in inks, paints, free-machining steels and fire sprinklers.

Bismuth

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Crystals of Sulfur are usually yellow to yellowish-brown blocky dipyramids. Also it is found more typically as powdery yellow coatings. Native Sulphur is usually formed from volcanic action - as a sublimate from volcanic gasses associated with Realgar, cinnabar and other minerals. It is  found in some vein deposits as an alteration product of sulfide minerals.

Sulfur

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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. 

Pyrite

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Amethyst is a purple variety of Quartz often used as an ornament.  Upon exposure to heat, Amethyst generally becomes yellow, which some refer to as Citrine or "burnt" Amethyst.  It occurs in color from a light, slightly pinkish violet to a deep grape purple.  It is widely distributed as a mineral.

Vera Cruz Amethyst

M408c  Here is something different for the mineral collector.  This is an extremely nice, well formed Creedite crystal cluster from Chihuahua, Mexico.  This rarer mineral has an interesting acicular radiating spray of fine Burnt Orange prisms, peppered with small crystals and has lots of character.  It measures 4 1/4" x  3 1/4" x 2 1/2" and has a natural texture and finish.   Very, very nice!

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Creedite is a rare hydroxylhalide mineral that formed from the oxidation of fluorite ore deposits.  It ranges in color from colorless, white, violet to orange.  Creedite gets it's name from Creede Quadrangle Colorado where it was first found 1916.  It was later also found in Nevada, California and Chihuahua, Mexico.  Other world locations are in Eastern Europe in Tajikistan and Kazakhstan.

Creedite

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Wulfenite is a lead molybdate mineral named for an Austrian mineralogist. It is most often found as stubby, pryamidal or tabular crystals in a bright orange-red to yellow-orange color. It is found in many locations, associated with lead ores as a secondary mineral and often found Cerussite, Smithsonite, Hemimorphite, Vanadinite, Mimetite and other minerals. Among the more notable locations for finding Wulfenite are Pennsylvania, Arizona and Mexico.

Wulfenite

M410c  This is a new item and a very nice piece of Eudialyte from Quebec, Canada.  It has vibrant Pink colors accented by some Black and White. The black material is Tourmaline and the white material either calcite or quartz. The colorful and "sparkly" specimen measures 2 1/8" x 1 5/8" x  1".  This unique specimen makes an excellent display of rare mineral or a wonderful addition to your collection.  

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Eudialyte, also spelled Eudialite,  is a complex material  consisting chiefly of the silicates of iron, zirconium, and lime. Some samples of Eudialyte have been found to have up to 46 different elements.  The zirconium has many uses from the production of synthetic fibers, in construction materials for aircraft and space vehicles and in the manufacture of super-hard alloys.  Eudialyte is found in Arkansas, Greenland, Russia, Norway, Canada and Madagascar.

Eudialyte

M411c   Here's something we haven't seen before, a great specimen of Brucite from Killa Saifullch, Pakistan. It measures 3 1/8" x 2 1/2" x 3 1/4. It has a bright yellow color in an interesting crystal like formation. You won't want to miss this one-of-a-kind rare item so grab it quick!

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Brucite is the mineral form of magnesium hydroxide, with the chemical formula Mg(OH)₂. It is a common alteration product of periclase in marble; a low-temperature hydrothermal vein mineral in metamorphosed limestones and chlorite schists; and formed during serpentinization of dunites.

Brucite

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Cassiterite is a tin oxide mineral. It is generally opaque, but it is translucent in thin crystals. Its luster and multiple crystal faces produce a desirable gem. Cassiterite was the chief tin ore throughout ancient history and remains the most important source of tin today.

Cassiterite

M413b  Here is a gorgeous piece of Barite  from Mexico. It measures 4 5/8" x 4 3/8" x  2 1/2" and is loaded with Barite crystals protruding in all directions. The pictures don't do this awesome specimen justice!

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Barite or Baryte is a mineral consisting of Barium sulfate and is generally white or colorless. The baryte group consists of baryte, celestine, anglesite and anhydrite. Baryte commonly occurs in lead-zinc veins in limestones, in hot spring deposits, and with hematite ore.  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.

Barite

M414b  Here is an interesting and rare mineral.  This is a good sized, very nicely detailed Libyan Desert Glass specimen.  This compelling specimen has an unique design with the pale Creamy Yellow color accented by an unique shape.  It measures 1 1/8" x 1" x  1 1/4"  and has a natural finish.  Very nice.

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Glass is a hard brittle substance, typically transparent or translucent, made by fusing sand with soda, lime and sometimes other ingredients and cooling rapidly. Libyan desert glass or great sand sea glass is a substance found in areas in the Libyan Desert. Fragments of desert glass can be found over large areas, up to tens of kilometers. The Libyan desert glass has been dated as having formed about 26 million years ago. It was knapped and used to make tools during the Pleistocene. Today's glass is used to make windows, drinking containers and many other articles.

Libyan Desert Glass

M415b   Here's something we haven't seen in a while, a lovely Staurolite from Russia. It measures 1 1/2" x 1" x  1/2" and has not been polished.   Very cool! 

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Staurolite is the official state mineral of Georgia, and is also found in Fairy Stone State Park in Virginia, US. Staurolite often appears as two pieces which join together as a cross. They can appear as 90 degree angle cross called a Maltese cross, or as 60 degree angle crosses, which are called St. Andrew’s Cross and look like an “X.” Much rarer, there are staurolite which have both the 90 and the 60 degree crosses, and they resemble more a six-pointed star.

Staurolite

M416b  Here is a  nice Barite specimen from Peru.  This interesting specimen measures 2" x 1 1/4" x  3/4" and has nice sparkle, good clarity  with a great appearance.   Very nice.

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Barite or Baryte is a mineral consisting of Barium sulfate and is generally white or colorless. The baryte group consists of baryte, celestine, anglesite and anhydrite. Baryte commonly occurs in lead-zinc veins in limestones, in hot spring deposits, and with hematite ore. 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.

Barite

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Lapis is a stone with a long tradition of being considered a gem.  It is usually deep blue in color and is opaque.  It is a rock and not a mineral as it is made up from various other minerals.  The main component is Lazurite which is a Feldspar Silicate.  Lapis may also contain Calcite, Sodalite and Pyrite.  It is found worldwide.

Lapis

M418c  Here is a very pretty Stilbite  and Apophyllite specimen.  It has a super appearance with the awesome sugar white Apophyllite with the beautiful cream colored Stilbite protruding in all different directions.  This amazing mineral measures 4 3/4" x 4 1/4" x 2 1/2" and is from Nasik, India. A great way to begin your mineral collection!!

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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, 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.

Stilbite

M419b  This is a very different and pretty specimen of a rare Zincite crystal.  The synthetic crystal is a darker greenish color and is 2 5/8" long x 1/4" in diameter at it's base  and would be a unique addition to any collection.  

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Natural Zincite is rare and found only in few location in the world other than the famous zinc and manganese mines of Sterling Hill and Franklin, New Jersey.  Synthetic Zincite crystals were formed by accident in a zinc manufacturing facility in Poland and now are grown artificially as a by-product of zinc smelting.  The crystals can be colorless or range from dark red, orange or yellow to light green.  

Zincite

M420c  Here is a very nice, above average quality Rubellite or Pink Tourmaline specimen from Brazil. The interesting specimen measures 3" x 1 3/4" x 2 1/4" and has a natural unique appearance. It has a natural sparkly appearance and many deep Pink colored crystals in an unique pattern.  Very nice!

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Rubellite is a particularly beautiful and colorful gemstone from Tourmaline family. The Tourmaline mineral group is chemically one of the most complicated groups of Silicate minerals.  Its composition varies widely with Sodium, Calcium, Iron, Magnesium, Lithium, Aluminum, Boron and other elements.  It has a wide variety of colors including black, blue-black, brown, yellow, red, green, pink and is rarely colorless.  This mineral is found in igneous rocks, like Granite Pegmatite, and metamorphic rocks such as Schist and Marble.

Rubellite

M421c  Here's a great new item, an excellent piece of Tourmaline from Madagascar. This fabulous piece measures 2 5/8" x 2 1/4" x 1 1/2" and has not been polished but is in it's natural "shinny" state. It has a series of double terminated crystals which makes it truly unique.  A really great find!

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The Tourmaline mineral group is chemically one of the most complicated groups of Silicate minerals.  Its composition varies widely with Sodium, Calcium, Iron, Magnesium, Lithium, Aluminum, Boron and other elements.  It has a wide variety of colors including black, blue-black, brown, yellow, red, green, pink and is rarely colorless.  This mineral is found in igneous rocks, like Granite Pegmatite, and metamorphic rocks such as Schist and Marble.

Tourmaline

M422c  Here is a very nice, above average quality Smokey Quartz Crystal. The interesting specimen measures 3 1/8" x 2 1/2" x 5 3/8" and has a natural unique appearance. It has fabulous clarity, great inclusions and brilliant "rainbow" reflections as it's rotated in light. Very nice!

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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.

Smokey Quartz Crystal