Petrified Wood, Geodes, Crystals, Agates and Carvings

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$18.00 PR500c  This is a very nice Brazilian Agate end cut.   It measures approximately 3 3/4" x  3 1/2" x 1" and is polished on the front face.  This Agate has a nice, natural interior which exhibits a beautiful Crystal like center with a Tan and Beige Agate design. A nice display piece for your collection.  Very beautiful.

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.

brazilian agate end cut

Brazilian Agate End

$18.00 PR503b  This is a very pretty natural Brazilian Agate Stand Up.   It measures 3 1/2" x  3 3/8" x 2 5/8" and is polished on the front face.  This stand up has a pretty Grey color with a very nice Crystal center.  Very nice indeed.

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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 stand up

Brazilian Agate Stand Up

$35.00 PR508b  Here is an above average quality Dog Tooth Calcite specimen.  It measures 6" x 3 5/8" x 3" and has a natural sparkly appearance.  This beauty has an unique dark Reddish-Brown color with several intact points setting in an almost perfect cluster. 

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Calcite is a Carbonate mineral that is most widely distributed on the Earth's surface.  It is a common constituent of sedimentary rocks with Limestone in particular.  A Calcite formation can take on many different shapes and sizes which is dependent on the location, ground water occurrence and temperature.  Calcite is usually white or colorless but can be gray, red, yellow, green, blue, violet, brown or black.  The deeper the color is usually indicative of the definitive impurities from the earth or water.

dog tooth calcite

Dog Tooth Calcite

$85.00 PR505b   Here is a very nice, above average quality vase made from Marble.  It measures over 5" x 9 3/4" tall and has a nice exterior polish.  This vase has an unique design which exhibits several colors and designs in different areas of the vase.  Definitely a one-of-a- kind treasure.

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Marble is a metamorphic rock consisting of Limestone but composed mostly 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 or Chert.  This type of Marble will often have small animal like creature fossils throughout the matrix or media.

marble vase

Marble Vase

$8.00 PR509c  Here is something new at the Rock Shed. This is a very nice, above average quality Brazilian Agate slab.  It measures 4 3/4" x 4"and nearly 1/4" thick with a nice polish on both sides.  The Agate slab has nice a dark Reddish Orange color with lots of cool banding. 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 slab

Brazilian Agate Slab

$16.00 PR514c  The "Chrysanthemum" Flowers, also referred to 'flower frozen in stone', are natural occurrences of Celestite crystals in a limestone matrix.  Found in Liuyang County, Hunan Province in China. The Chrysanthemum stone flower has been highly prized as a marvel of nature.  Once polished and carved to show the wondrous flower, it is a soothing object for contemplation and meditation.

This flower measures over 2" x 17/8" and rests in a matrix measuring nearly 4" x 2 5/8" x 2 5/8".  These make great decorator items.

chrysanthemum stone

Chrysanthemum Flower

$12.00 PR507b   This is a piece of Petrified Wood from Elko, Nevada.  It measures 2 5/8" x 1 3/4" x 3 1/8" and has been polished on one side.   This specimen also has a rough exterior on the back and sides and has a felted bottom to prevent scratching delicate surfaces.  It has a light Grey color with darker accents.  A truly beautiful piece of polished Wood.

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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 PR511c   Here is a beautiful polished piece of Poly Chrome Jasper. This free form measures over 2 3/4" x 3 1/2" x 1 1/2" thick and is polished on all sides except for the base.  This interesting specimen has a nice blend of Tan, Red, Grey and dark Brown colors and a nice design.   A nice addition to any collection.

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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 jasper

Poly Chrome Jasper Free Form

$15.00 PR501b  This is a nice piece of Petrified Wood from Arizona.  It measures 5 3/8" x 3 1/4" x 1 3/4" and has been polished on one side.  This specimen has a rough natural exterior on the back and sides.  This Petrified Wood specimen has rich Red, Brown and other colors mixed in with an unique design.  It has been cut and polished in the Rock Shed's own Lapidary department. A truly beautiful piece of polished Wood.

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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

$18.00 PR506b  Here is a very beautiful, above average quality, double terminated Quartz Crystal  It measures 2 3/8" x over 3/4" x 1/2" and has a clear appearance with many sparkly iridescent inclusions.  It has been polished on all sides. 

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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.

double terminated crystal quartz

Crystal Quartz

$35.00 PR510b  This is a polished Slab from an Utah Septarian Nodule.  It measures over 7 1/2" x 5 3/4" x 3/8". This one has lots of Brown Aragonite with contrasting Yellow Calcite. 

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Click Here to See More Septarian Specimens like this.

Septarians are commonly composed of a carbonate mineral such as Calcite, a microcrystalline form of Silica as in Flint or Jasper, or an Iron Oxide such as Hematite.  These specimens are also known as a concretion which is a type of sedimentary rock. 

Septarians were formed millions of years ago by sediment forming around a fossil to create a mud ball transforming the fossil into Calcite and Aragonite.

septarian slab

Septarian Slab

$40.00 PR513b  This is a nicely polished Covered Jar or Dish carved from Pakistani Onyx.  It measures 3 5/8" x nearly 4" in diameter. This cool dish could used for various things from a functional candy dish to just a neat conversation piece. It appears to have been carved from one piece of Onyx. It has very nice typical Onyx colors and banding of soft greens and browns. Very cool!

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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 dish

Onyx Covered Jar

$40.00 PR515c  Here is a very pretty Marble jar from China.  It measures 5 7/8" tall x 4" in diameter and has a nice polish.  It has a nice soft mix of colors including Green, White, Tan, Brown and Gold colored accents. This beautiful piece could be used as a candy or spice jar and would make an excellent gift.

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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 jar

Marble Jar

$15.00 PR502b  Here is a very beautiful, above average quality, single terminated Quartz Crystal.  The Crystal measures  2 1/2" tall x 1 5/8" x over 1 1/4" and has a clear appearance.  The Crystal has six very nice facets and a super polish.

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Phantom Quartz is a variety of Quartz that over the course of millions of years, formed over earlier rock Crystals that already existed.  It takes its name from the particular structure of its crystallization.  Each Crystals displays the outlines of numerous smaller Crystals, known as phantoms.  These Crystals are found in Austria, Brazil, Madagascar, Switzerland and the United States.

quartz crystal

Crystal Quartz

$10.00 PR512c  This is something different from the Rock Shed's gift department.  Here is a very nice, above average quality, hand-made Jasper Arrow Head.  Each Arrow Head measures 4" x 1 1/2" and has not been polished.  A very unique gift for that hard-to-buy-for person.  Item will be similar to items in the photo.

We do recommend caution when considering your purchase as Jasper is a naturally SHARP material and may not be acceptable for small children due to the SHARP edges the Arrow Heads may have.

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.

jasper arrow head

Jasper Arrow Head

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