Petrified Wood, Geodes, Crystals, Agates and Carvings

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$65.00 PR800c  Here is something new to The Rock Shed! This cool skull is carved from solid Crystal Pyrite, measures 3" long x 1 7/8" x 2 1/2" tall and weighs 1 1/4 lbs. This interesting skeleton skull has great detailing and a smooth natural Gold colored finish.  

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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. 

skull

Pyrite Skull

$45.00 PR809b  This is a stunning, lighter colored Smokey Quartz Crystal from Madagascar. Inside, it has a very cool phantom crystal with two tips and several sparkly inclusions. This stand up measures 2 5/8 " tall x nearly 1 1/4" x 7/8" with a great polish on all facets.  Very beautiful!

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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.

qtz

Smoky Quartz Crystal

$60.00 PR810b   Here is something different from the gift department at the Rock Shed. This is a very cool Poly Chrome Jasper Free Form.  Highly polished on all sides, it has amazing color, ranging from cream to reddish brown to various greens in a excellent Poly Chrome design. This piece measures over 5" tall x 3 1/2" x nearly 2 1/2".  It would make a great addition to any rock collection or a beautiful decoration item in your home.

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Jasper, or spotted stone, is an opaque, impure variety of Quartz that is usually red, yellow or brown in color.  Some Jaspers simultaneously exhibit several variants such as banding, flow patterns, dendrites or color variations.  This results in what appears to be scenes or images in a cut section of the Jasper.

poly chrome

Poly Chrome Jasper

$85.00 PR806c  This is an above average quality and very beautiful Green Malachite specimen from South Africa. The overall size  is nearly 5 1/4" x  3 3/4" x 1 7/8". This specimen is polished all around the top surfaces.  A great addition to your collection. 

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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.

malachite

Malachite

$60.00 PR801c  This is a very nice Rose Quartz heart from Madagascar.  It measures nearly 4" x 3 1/4" x 2" and has a nice polished finish.  The heart has a beautiful Rosy Pink color with amazing sparkly highlights.  A great collectors item or a super gift. 

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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.

rose quartz

Rose Quartz Heart

$40.00 PR802c  Here is a very nice piece of Petrified Wood from Arizona.  It measures 7 1/8" tall x 4 1/4" x 2 5/8" and has a highly polished finish on one side.  It has a great design, a nice variety of dark Reds, Browns with Yellow and Black highlights with lots of character. This piece is a creation of our own Lapidary Department. Very cool!

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Petrified Wood is a type of a fossil as it consists of fossil wood where all the organic materials have been replaced with minerals while retaining the original structure of the wood.  These minerals are most often Silicates such as Quartz.  Other minerals, Manganese, Iron and Copper, in the water or mud during the petrification process give Petrified Wood a variety of color ranges: black - Carbon; green/blue - Copper; red/brown/yellow - Iron.  Petrified Wood can preserve the original structure of the wood in all its detail all the way down to the microscopic level.  Structures such as tree rings and the various tissues are often observed features.  Although Petrified Wood can be found worldwide, it is rather rare in larger quantities and at times can be difficult to obtain by the average collector.

petrified wood

Petrified Wood

$40.00 PR813c  Here is a beautiful Amethyst Flower Cluster from Vera Cruz, Mexico.  It measures nearly 4 1/4"x 2 1/2" x 2 1/4".  It has a nice Purple tipped crystals on a sparkly green matrix with tiny clear crystals and displays very well. The specimen does have a healed fracture in the matrix that is stable and does not affect the specimen. This is visible in the first linked picture below and is reflected in our price. A very nice piece!

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There is only one (1) available.

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, but fine, clear specimens that are suitable for cutting as ornamental stones.

amethyst crystal

Amethyst Flower Cluster

$55.00 PR804b  This is a very nice Copper Ore Standup.  It has been smoothed and polished on the face to show the pretty natural Copper color. The standup has a cork bottom so it doesn't mar surfaces it is placed on.  It measures approximately 2 1/2" tall x nearly 4" x almost 2 3/8" and weighs over 2 1/4 lbs.  Very beautiful.

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Click here to view  more Native Copper specimens !!

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 ore

Copper Ore Decorator
 

$58.00
 

PR803c   Here is an amazing discovery!  This is a Sikhote-Alin Meteorite from Primorskiy Kray, Russia.  It measures 1 1/2" x 7/8" x over 1/2" and has a natural sheen.  This Meteorite has a Black metallic finish.  A cool gift or just keep it for yourself.  These Meteorites are special in that they have "finger print" marks on the surface which are the result of the melting of the material upon entering the atmosphere from outer space.

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A Meteorite is a natural object originating in outer space that survives an impact with the Earth's surface without being destroyed.  There are 3 types of meteorites: stony, which are mainly composed of Silicate minerals; Iron, which are largely composed of metallic Iron-Nickel; and stony-Iron, which are composed of both types of media.

russian meteorite

Meteorite

$16.00
 

PR805c  Here is a beautiful example of a Brazilian Agate.  It measures over 5 1/4" x 4 1/2" x 1 1/4" and has super Agate outer banding around the warm Brown colored center. Very nice.

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Agates mostly occur as nodules in volcanic rocks or waters containing Silica in solution which is possibly derived from the decomposition of Silicates in the lava.  The Siliceous matter is deposited in regular layers resulting in the banded or striped formation.  It is very unlikely that you would ever find an exact duplicate of any type of Agate, Brazilian or other. 

agate

Brazilian Agate

$25.00
 
PR811b  This is a very pretty Marble vase from China.  It measures 4 1/8" x 3 5/8" in diameter and has a nice polish.  It has a nice soft mix of colors including Yellow, White, Grey, Tan and Brown colored accents.  A great gift or just keep it for yourself.

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Marble is a metamorphic rock consisting of Limestone but mostly composed of Calcite.  It is used extensively for sculpture, building materials and has many decorative uses.  The pure white Marble is probably the most common form known, but the characteristic swirls and veins of many colored Marble varieties are usually due to various mineral impurities such as Clay, Silt, Sand, Iron Oxides.

marble vase

Marble Vase

$25.00
 
PR807c  Here is a nicely polished Rutilated Quartz Crystal.  This beauty measures 2 1/2" x over 1 1/2" x  nearly 3/4" and has a good polish on all the facets.  This awesome Crystal has a beautiful shape and nearly clear appearance with many inclusions. It also has many "hair like" rutiles throughout the entire piece that only adds to it's character.

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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.

crystal quartz

 Rutilated Quartz Crystal

$22.00 PR808b  Here is something new for the mineral or rock collector.  This is a high quality specimen of darker Green Moldavite.  This material is from the Moldau River valley in the Czech Republic.  It measures over 1" x almost 3/4" x 1/2" and has a natural, mottled exterior with a natural unpolished shine.  An exceptional item for the person who has everything.

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Moldavite is the product of a meteor collision with the Earth nearly 15 million years ago.  It fell over what is now called the Moldau River valley in the Czech Republic.  These green gems are among the most rare minerals on the Earth.  They have been prized by humans for thousands of years and are still given as gifts from royalty to royalty. 

moldavite

Moldavite

$28.00
 
PR812b   This is a very pretty, larger Onyx vase from Pakistan.  It measures 7 1/2" tall x 2 3/4" in diameter and has a nice polish.  It has a nice soft mix of colors including Green, Cream, Tan and Brown colored accents.  A great gift or just keep it for yourself.

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Onyx is a banded variety of Calcite.  The colors of its bands range from white to almost every color except shades of purple, blue and black.  It is used for vases, bowls, beads, cabochons and other items.  This type of Onyx is found in Mexico and Pakistan.  It is often carved, polished and sold in a variety of different things. 

onyx vase

 Onyx Vase

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