Petrified Wood, Geodes, Crystals, Agates and Carvings

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Cost

           Item Description

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$95.00

PR600c   Here's a fabulous new item, a rare Charoite Cylinder from Russia. It measures 1 1/8" x  4 1/8" tall and has a nice polish. It has a pretty combination of swirling purple and black colors and other accents all in an amazing design. Just pretty to look at and it would make a great gift.

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Charoite is newly found mineral, first discovered in the 1940s and described to the world in 1978. It is found only in Siberia, Russia and is a translucent lavender to purple color. Charoite has a swirling, fibrous appearance and is strictly massive in nature. It is used as an ornamental stone and sometimes as a gemstone.  

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 Charoite Cylinder Decorator

$45.00

PR601b  Here's something new, a Tourmaline Stand Up.  This wonderful piece measures 2 1/4" x 1 5/8 " x 3 1/2" and has a nice polish. It's mostly black with lots of accents.  A cute little item.

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Click here to view more Amethyst specimens!

Tourmaline is one of the most chemically complicated of all Silicate minerals. It is a complex Silicate of Aluminum and Boron and the composition varies widely with Sodium, Calcium, Iron, Magnesium, Lithium and many other elements that enter into it's structure. It can occur in a long, slender needle-like crystal to a thick prismatic and columnar crystal to a radial like daisy formation. It comes in many colors usually black and brown (iron rich); brown and yellow (magnesium rich); and blue, red, green, yellow, and pink (lithium rich). This mineral is found in igneous rocks, like Granite Pegmatite, and metamorphic rocks such as Schist and Marble.

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Tourmaline Sand Up

$15.00

PR602c  Here is a very nice Free Form made from Sandstone from Arizona.  It measures 4 3/4" x 2 1/8" x 3 5/8"  and has natural unpolished finish with a good variety of desert colors.  A truly beautiful way to enhance your home or makes a cool gift.

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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

$75.00

PR603b  Here is something different for the mineral or polished rock collector.  This is a gorgeous specimen of Rhodochrosite.  The stone has a gorgeous dark Rose Pink color with various different pretty Pink shades in the excellent banding.  It measures 2 3/4" x 1 7/8" x 1 1/4" and has a great polish on most of it leaving the rough in it's natural state.   A very nice piece of a hard to find item.

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Rhodochrosite is a Manganese Carbonate mineral.  It is typically a rose-red color, but impure specimens can be shades of pink to pale brown.  It is used as a key component of low-cost stainless steel and certain Aluminum alloys.  Quality banded specimens are often used for decorative stones and jewelry, although it is relatively soft and difficult to cut.

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Rhodochrosite

$60.00

PR604c  This is something very nice from the Rock Shed's gift department.  This is a very nice quality Clear Quartz Crystal from Brazil.  The Clear Quartz has good clarity exhibiting the wonderful landscape like inclusions.  This gorgeous piece measures 3 3/4" x 1 7/8" x 4 1/2" tall and has a good polish.  This awesome specimen is unmatched from whatever direction you choose to view it. 

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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

$185.00

PR605c   This is an awesome  Poly Chrome Jasper Flame.  This piece is extremely colorful with many different shades of Green, Pink or Purple, Tan or light Brown and Orange with a design found only in Poly Chrome Jasper.  It has a excellent polish on all sides except the bottom and measures 6" x 4 1/2" x 8 1/4" tall.  This lovely piece of Poly Chrome Jasper makes a wonderful display item. 

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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.

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Poly Chrome Jasper Flame

$75.00

PR606b Here is a truly amazing new item, an exceptional Mosaic Quartz Free Form. It measures 1 7/8" x 1 1/8 x 5 3/8" and has a good polish. It has a striking mix of of contrasting colors in a fabulous design. Very nice indeed.

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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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Mosaic Quartz Free Form

$18.00

PR607c   This is a very nice Picture Sandstone slab from Arizona.  It measures over 4 1/4" x 3 3/8" x 3/8" and has a smooth, unpolished finish.  These slabs are very unique in shape and size and would enhance any mantle, desk top or wall.  It comes complete with a plastic display stand.

Click here for more Sandstone like this

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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Picture Sandstone Slab

$150.00

PR608b  This is a great find!!  Here is a very nice, above average quality Labradorite specimen.  This specimen has a good color mix with a highly iridescent "blue-gold" shine in the light as well as some subtle "rainbow" reflections.  This multi-faceted Labradorite was specifically cut in the color planes to show off the excellent iridescence from different angles. Labradorite cut and polished like this is hard to find.  It measures 5 3/4" wide x 3 1/4" x 9 3/4" tall. weighs over 8 pounds and has a good polish on all sides.  This would make a great gift for the "hard to buy for" person. 

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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

$240.00

PR609b  Here is a beautiful and unique example of a Las Choyas or Mexican Coconut Geode that has been cut and highly polished on the face right here in our Lapidary Department.  This exceptiopnal Geode has a nice bluish grey with good agate banding around a gorgeous Quartz Crystal center.  The incomparable geode measures 5 1/2" x 2 3/4" and 2 5/8" thick and weighs nearly 5 pounds. This lovely geode set is from Chihuahua, Mexico.  Very, 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 Set

$45.00

PR610c  This is a pretty, nice quality Mortar and Pestle made from Marble from Pakistan.  The Mortar measures 5" in diameter x 4 5/8" tall and is nicely polished.  The Pestle is 5 5/8" long x  1 5/8" in diameter.  They have an eye-catching and unique design with many lovely subtle colors in different areas.  Definitely something special for that special, hard-to-buy for person.

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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.

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Marble Mortar and Pestle

$55.00

PR611b  Here is an exceptionally nice, unique Petrified Wood specimen from Madagascar It has beautiful dark Red colors accented by Browns, Grays, Yellow and Cream on different sides or areas. The awesome specimen measures 4 3/4" tall x 3 3/8" x 2 1/4".   Petrified wood examples like this are extremely rare and hard to come by.  Just very, very nice!

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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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Petrified Wood

$24.00

PR612b   Here's a cool new item,  Dumortierite in Quartz carved into a lovely free form.  This nicely polished piece measures 2 3/4" wide x 1 1/4" x 3 1/4" tall with a great polish.  It has a good color scheme in a very nice design.  This unique item would make a great or nice addition to any polished rock collection.

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Dumortierite is a fibrous variably colored aluminum boro-silicate mineral. Dumortierite crystallizes typically forming fibrous aggregates of slender prismatic crystals. The crystals vary in color from brown, blue and green to the more more rare violet and pink. Dumortierite Quartz is blue colored Quartz containing abundant Dumortierite inclusions. Dumortierite was first describes in 1881 in the Rhone Alps of France and was named for the French Paleontologist Eugene Dumortier. Dumortierite is sometimes mistaken for Sodalite and has been used as an imitation for Lapis Lazuli. Dumortierite can be found in Austria, Brazil, Canada, France, Italy, Madagascar, Namibia, Nevada, Norway, Poland, Russia and Sri Lanka.

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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Dumortierite Quartz

$35.00

PR613b   Here is a very cool  Green Calcite Free Form from Mexico.  It has many, many crystals in various pretty shades of green.  It measures approximately 7" x 3 5/8" x 4 1/2"; weighs over 4 1/2 pounds and has a nice polish.  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.

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Green Calcite

$75.00

PR614b   Here's a cool new item and something we haven't seen before, an amazing Sagetized Agate carved into a lovely free form.  This nicely polished piece measures 4 1/8" wide x 3 1/4" x 5 1/4" tall with a great polish.  It has a good color scheme, wonderful banding, cool cavities. neat Sagenite all in a very nice design.  This unique item would make a great or nice addition to any polished rock collection.

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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.

Sagenite, or more accurately, sagenitic agate is any agate having acicular or needle-like mineral growths. These hair like filaments are often arranged in fans or sunbursts. The inclusions come in a wide array of colors.

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Sagetizied Agate

$125.00

PR615c  This is an exceptional piece of Zymara Agate that was cut and polished right here in our very own Lapidary Department. This very remarkable and interesting piece shows great detail.  The face has been cut and nicely polished and has a simply amazing design and fabulous banding. This unique specimen measures approximately 6 1/4" x 4 7/8" x 2 1/2" thick.

Be sure to click on the pictures at right to see the full size versions.

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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.

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Zyamara Agate

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