Petrified Wood, Geodes, Crystals, Agates and Carvings

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$24.00 PR303c  These "Chrysanthemum" Flowers, 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.

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The flower measures 2 1/2" x 1 3/4" and rests in matrix measuring 4 1/2" x 3 7/8" x 2 3/8".  These make great decorator items.

chrysanthemum stone

Chrysanthemum Flower

$35.00 PR309b   This is something different for the rock collector.  Here is a very nice, extra good quality Trancas Geode from Mexico.  It measures 2 1/2" x 2 1/4" and has been cracked down the middle.  The inside and outside of the Geode have not been polished.  A true beauty.

Geodes are geological rock formations which occur in sedimentary and certain volcanic rocks.  They are essentially rock cavities or vugs with internal Crystal formations or concentric banding.  The exterior is generally Limestone while the interior contains Quartz Crystals and/or Chalcedony deposits.  If the Geode is completely filled with Crystal, being solid all the way through, it is then called a nodule.

trancas geode

Trancas Geode

$35.00 PR308c   This is a very nice piece of South Dakota Petrified Wood that was polished in our own lapidary department. It has nice rich brown colors and a neat natural texture on the unpolished surfaces. It measures 5" x 4 3/4" x 2 3/4" and has a smooth, highly polished face.  This beautiful Petrified Wood is unique and would enhance any table or desk top and would be a cool gift!

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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

South Dakota Petrified Wood

$10.00 PR311c  Here is something different from the Rock Shed's gift department.  These are faceted "Crystal" Gemstones in various colors.  The approximate average size of each Glass stone is 1 1/2" or 40 mm in diameter.  There is a wide array of colors including Red, Blue, Clear, Turquoise, Green and Light Blue.

You will receive three (3) of the items pictures at our choosing.  Unfortunately, there is NO choice in color.

Something very nice for that someone special.

glass "crystal" gemstones

"Crystal" Gemstones

$200.00 PR313b  This is a very cool large Labradorite Free Form. This beautiful specimen has a good color mix with a highly iridescent shine that changes colors as the light hits it from different angles. It measures 7 1/8" x 3 1/4" x 2 1/2" and weighs 4.5 lbs.  The specimen has some areas of Biotite Mica that shows up dull black. A really awesome item for a special person or just keep it for yourself!

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Labradorite is a Feldspar mineral that occurs in large Crystal masses in Anorthosite and shows an iridescence or "play of colors."  Gemstone varieties of Labradorite exhibiting a high degree of iridescence are Spectrolite, Moonstone and Sunstone.  High quality samples with good iridescent qualities are desired for jewelry.

labradorite

Labradorite

$35.00 PR310c   Here is a great addition to your office or home.  This is a Arizona Sandstone Free Form Stand-Up.  It measures 6 3/4" x 6 3/4" x 2 1/8" and has a rough, natural texture.  This piece is not polished.  Something very different for the collector or the gift giver. 

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Sandstone is a sedimentary rock composed mainly of sand size mineral or rock grains.  Most Sandstone is composed of Quartz and/or Feldspar because these are the most common minerals in the earth's crust.  It can be almost any color.  The Sandstone beds often form highly visible cliffs and are strongly identified with certain regions of the world.

sandstone free form

Sandstone Free Form

$48.00 PR301b  Here is a very large, very beautiful Crystal Quartz Point.  This specimen measures 4 3/4" x 3" x 4" and has a smooth, natural finish with a hint of a Smoky Grey color.  This crystal has 6 facets and the upper portion is almost completely clear.  Close observations will reveal one larger "self healed" fracture and a small chipped area near the top that has been polished.  Neither of these natural flaws distract from the appearance or beauty of the Crystal. 

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 Crystal

$14.00 PR312b  Here is a very pretty, hand-carved Selenite Free Form.  It measures approximately 5 1/8" x 1 5/8" and has a good polish.  It has a flat bottom with an unique, cork-screw design.  Something different for the polished rock collector. 

Selenite, also known as Satin Spar, Desert Rose and Gypsum Flower, are the four Crystalline varieties of Gypsum.  It is a very soft material composed of Calcium Sulfate.  Selenite is often transparent and colorless.  If color is present it is often due to impurities or presence of other minerals. 

selenite free form

Selenite Free Form

$45.00 PR307b  Here is a very cool Green Calcite Free Form from Mexico.  It has many, many crystals in various shades of green. It measures 6" x 7" high x nearly 4 1/2" wide and is nicely polished.  The bottom is not polished consists of natural Rhyolite. A very unique gift for someone special or add it to your own collection.

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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.

green calcite

Green Calcite

$30.00 PR305c  Here is something different for the Crystal collector.  This is a very nice, above average quality Amethyst Crystal point.  It measures 2 1/4" x 1 5/8" and has a nice hand polish.  The Crystal point has a perfect tip, very nice facets and a very deep Purple color.

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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 an ornamental stone, but fine, clear specimens that are suitable for cutting are used in jewelry.

amethyst crystal

Amethyst Crystal

$50.00 PR300c   Here is something different from the Rock Shed's gift department.  This is a larger, hand crafted Pakistani Onyx Chess Set.  The Black and Sandstone colored board measures 13 1/2" square with a nice Black and Beige color mix.  The set comes with matching Chess pieces in coordinating colors.  Each Chessman is hand carved.  Close observation on the board will reveal some minor fractures in the Black Onyx squares which is quite common for this type of material and it does not distract from the overall appearance.  This would make a super gift for Father's Day.

Chess Board.

Beige Men.

Black Men.

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.

chess set

Onyx Chess Set

$25.00 PR306c   Here is a very beautiful Crystal Quartz cluster.  It measures 4 1/4" x  2 1/4" x 3" and has a natural luster and shine.  This cluster has several completely full crystals and numerous smaller, sparkly crystals at the base.  A beauty to behold.

Another photo.

Another photo.

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 Crystal

$40.00 PR302c  This is a pretty Chinese Marble Vase with a nice polish.  It measures 7 7/8" x 3 5/8" and has a good color scheme and very different design.  This Vase would make a great addition to any polished collection or it would make a great gift.

Another photo.

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.

marble vase

Marble Vase

$12.00 PR304b  This is an interesting Free Form made from Picasso Marble.  This material is from Utah.  It measures 4 1/2" x 2 3/4" x 5/8" and is nicely polished.  This specimen has a nice blend of Browns and Blacks which really enhances the appearance.

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.

picasso marble free form

Picasso Marble Free Form

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Keystone, SD  57751

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 Information:  605-666-4813
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