Petrified Wood, Geodes, Crystals, Agates and Carvings

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$30.00 PR300b    This is a smaller Skull made from Reconstituted Amber.  The Skull is a pretty Amber color with an excellent design. It measures 2 3/4" long x almost 1 7/8" wide x almost 2 1/4" tall .  A very nice piece of a hard to find material and would make a super gift for a special person!

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Similar to like item.

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Natural Amber is an organic, time hardened fossilized resin material of vegetable origin. It came from a species of Pinus Succinisera (Pine) trees around 45 million years ago from the Baltic region of Europe. Amber is a soothing material that is both calming an energizing and said to bring clarity of thought and wisdom. Reconstituted Amber is made by melting pieces of natural Amber and allowing it to cool and return to a solid state. Real Amber is not available is large sizes suitable for making into spheres or other large polished items.

carving

Reconstituted Amber Skull

$85.00 PR301b  Here is a larger, very beautiful single terminated Crystal Quartz Point.  This lovely crystal has many facets and the tip is almost completely clear with sparkly inclusions. This awesome specimen measures 7 1/4" long x almost 3 1/2" x nearly 3 1/4" and has a smooth, natural finish.   Quartz crystals usually don't photograph well and this very nice example is no exception.  It does have some minor damage on the tip, common for this material and reflected in our price.  Just gorgeous!

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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.

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Quartz Crystal

$85.00 PR302c  This is a very pretty Brazilian Agate Slab with a nice polish.  It measures 10 1/2" x 7 7/8" x 1 3/4" and has a good color scheme and very different design.  The agate has colorful bands of different shades of blue and grey surrounding the nice pale yellow, neat crystal areas and a cool open cavity that goes clear through.  This Brazilian Agate Slab would make a great addition to any polished collection or it would make a great gift.

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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

$135.00

PR303b  Here a fabulous new item, a high quality gorgeous Chalcedony Free Form  from Turkey.  It measures 3" x 3" x 4 5/8"tall .  It has a great polish on all sides exposing it's beautiful blue color and neat accents. Very nice!

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Chalcedony is a cryptocrystalline form of silica, composed of very fine intergrowths of the minerals quartz and moganite.  It has a waxy luster, and may be semitransparent or translucent. It can assume a wide range of colors, but those most commonly seen are white to gray, grayish-blue or a shade of brown ranging from pale to nearly black.

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Chalcedony Free Form

$80.00 PR304c  This is an exceptional Flame made from Crystal Quartz .  It has amazing clarity, fabulous inclusions and "rainbow" reflections. It measures 3 5/8" wide x 2 3/8" x  6 1/4" tall and is nicely polished on all sides.  Just very, 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. 

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Crystal Quartz Flame

$45.00

PR305c   Here is something new and different from the Rock Shed's gift department, an exceptional Sardonyx (heat treated) free form.  It has a unique shape, mesmerizing colors, fabulous design and a great polish.  It measures 3 1/4" x 2 3/4" x 1 5/8". The pictures don't show the true beauty! Grab this one quick!

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Sardonyx is a form of Chalcedony. Chalcedony is a cryptocrystalline form of silica, composed of very fine intergrowths of the minerals quartz and moganite. Chalcedony has a waxy luster, and may be semitransparent or translucent. It can assume a wide range of colors, but those most commonly seen are white to gray, grayish-blue or a shade of brown ranging from pale to nearly black.

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Sardonyx

$160.00 PR306c   This is a beautiful polished Septarian bowl from Utah.  It has fantastic Yellow Calcite contrasting the Brown Aragonite with neat crystal cavities all in a gorgeous design.  It measures 10 1/2" x 8" x 2 1/4" tall, weighs nearly 10 pounds and is highly polished both sides. A truly fabulous piece made in the USA!

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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.

polished rock

Septarian Bowl

$55.00 PR307c  Here is a very cool Poly Chrome Jasper Free Form.  Highly polished on all sides, it has amazing variety of color  in a excellent Poly Chrome design. This piece measures 3 3/8" x 3 1/4" x 5 1/4" tall.  It would make a great addition to any rock 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.

polished rock

Poly Chrome Jasper

$45.00 PR308c   This is a very nice specimen of Petrified Wood from the Black Hills of South Dakota.  It has nice rich brown Earth Tone colors and a neat natural texture on the unpolished surfaces.  It measures 8" x almost 5 5/8" x nearly 1 3/4" thick; weighs almost 4 pounds and has a smooth, highly polished face.  This was cut and polished in our own lapidary department.  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.

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South Dakota Petrified Wood

$50.00

PR309b   Here is a wonderful find!!  This is a very nice, double cavity Dugway Geode from Utah.  It measures 7 3/4" wide x 4 1/2" x 2 3/8" and is highly polished on the face.  It has an amazing center cavity with both sparkly and druzy crystals of a clear to grayish white color.  The inside cavity shows up a bright green and a little blue under short wave UV light and blue under a long wave UV light.  The balance is left natural and not finished. The bottom has felt glued on for display and to protect furniture from scratching.  A very nice conversation piece or a pretty display item.

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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.

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Dugway Geode

$25.00 PR310b   Here is a great addition to your office or home. This is a select Deming Agate from New Mexico specimen.  The lovely specimen measures 4 7/8" x 3 1/4" x  4 1/2" with an irregular shape and has a very pretty color with neat banding  in a great design. It also has a neat crystal cavity that goes clear through to the other side. This neat specimen was nicely cut and polished on the front side here at the Rock Shed leaving the rest in it's natural rough state. Something very different for the collector or the gift giver. 

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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.

polished rock

Deming Agate

$120.00 PR311b  Here is a gorgeous piece of Lapis from Afghanistan.  The beautiful Lapis has a great Royal Blue color with sparkly pyrite accents and lighter blue to white in areas.  This highly polished and uniquely shaped specimen measures 3" x 1 1/4" x 8 1/4" tall.  Something extremely nice for that someone special.

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Lapis is a rock and not a mineral because it is made up from various other minerals.  To be a mineral it would have one constituent only, and Lapis has several including Lazurite, Sodium, Aluminum, Silicon, Oxygen, Sulfur and Chlorine.  Most Lapis contains Calcite, Sodalite and Pyrite.  The best color is an intense blue that is lightly dusted with small flecks of Pyrite.  Lapis takes an excellent polish and has been made into jewelry, carvings, boxes, mosaics and ornamental objects.

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Lapis

$18.00 PR312b  Here's a ne item, a very pretty Soap Dish made from Onyx.  It measures 6 7/8" long x 3 1/2" x  1 1/8" tall and has a nice exterior polish. It has an unique design which exhibits several colors and designs in different areas. It provides a beautiful piece for a practical use. Definitely a one-of-a- kind treasure.

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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 is found in Mexico and Pakistan and is often carved and polished into various items.  This material is much more readily available and softer than the gemstone commonly called Black Onyx which is a silica gem.

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Onyx Soap Dish

$100.00 PR313c  This is a very cool larger 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 6 1/8" x 3 1/4" x 8 3/8" tall and weighs nearly 8 1/2 lbs.  The lovely specimen has a great polish on the front face leaving the back in it's natural state and 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.

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Labradorite

$140.00 PR314c  This is a very cool, very pretty Sandstone Free Form. The Sandstone has fantastic banding in shades of various browns and tans in a good variety of desert colors.  It measures 15 3/8" wide x 3 1/8" x  9 5/8" tall, weighs a whopping 14 1/2 pounds with a natural unpolished texture.  A stunning piece that would look fabulous in many different locations in your home or office.

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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.

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Sandstone Free Form

$40.00 PR316c  This is a very pretty Las Choyas or Mexican Coconut Geode and has been cut and nicely polished on the face here in our Lapidary Department.  This lovely geode has an appealing  bluish grey around a gorgeous white Quartz Crystal center  with a neat tiny cavity.  It measures 5 3/4" x 5 1/8" x 2 1/2" thick and weighs nearly 3 3/4 pounds.  This very nice geode is from Chihuahua, Mexico. Very nice!

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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.

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Las Choyas Geode

$140.00 PR325c    This is an exceptional Skull made from Agate from Brazil. The very detailed Skull is a pretty cream and gold colors with an excellent design. It has neat accents, great detail and a fabulous crystal cavity that goes clear through to the bottom. It measures 4" long x 2 1/2" wide x 2 7/8" tall .  A very nice piece and would make a super gift for a special person!

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Click here for more skull carvings like this

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.

carving

Agate Skull

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