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Cost
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Item
Description
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Click Picture
for Larger Image
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$125.00 |
PR400b This is an exceptional Zyamara Agate set
from Madagascar with great color, amazing banding and a very unique design.
As a whole Agate it measures
6 1/2" x 4 1/4" x 3 1/4" thick and has been highly polished on the
face here at the Rock Shed. This pretty agate is a beautiful work of
nature and has great characteristics especially when held in the bright
light. Another photo
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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 Set
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$120.00 |
PR401c
This
is something very different; a pretty Free Form carved from Orange
Calcite. This nicely polished piece measures 3 7/8" wide x 11 3/8"
tall with a great polish. It has a deep Orange/Rust color scheme
with neat inclusions and some subtle "rainbow" reflections all in a
very nice design. This unique item would make a great it would make a
great gift or nice addition to any polished rock 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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Orange Calcite
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$80.00 |
PR402b
Here is something different at the Rock Shed. This is an above
average quality Poly Chrome Jasper specimen. The Poly Chrome has
been highly polished on all sides except the bottom to show the gorgeous variety of colors.
It measures 3 3/4" x almost 4 1/2" x 6" tall. Very
nice!
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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
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$15.00 |
PR403b Here is something different for any
collector. Here is a very nice, very pretty Selenite Crystal from
Mexico. This Selenite is also known as Fishtail or Angel's Wing
Selenite. It measures 4 1/2" x 2" x 2 1/2" thick
and has a natural shiny appearance. A great conversation piece.
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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.
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Selenite Crystal
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$50.00 |
PR404b Here's a cool new item, a fascinating
Rainbow Rhyolite Cube. This neat cube measures 2 1/2" square and is not
polished. It has a great shape and mesmerizing design. Very nice!
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Rhyolite is an igneous, volcanic rock that is composed of
Felsic, or Silicate minerals such as Silica, Aluminum, Sodium and
Potassium. This material, also called Volcanic Tuft and Rainbow Rock
actually began as volcanic ash spewed from the mouth of a volcano millions
of years ago. This ash was exposed to heat and pressure that resulted in
turning it to stone. The bright banded colors are a result of exposure to
high concentrations of iron oxides. The material is similar to that of
Granite, Pumice and Obsidian but due to the cooling process when formed,
Rhyolite did not form any crystals, thus changing the texture of the
material.
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Rainbow Rhyolite Cube
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$42.00 |
PR405c
This is a very nice, above average quality multi-colored Marble
Vase. It measures 4 1/8" in diameter x 8" tall. It has a nice different Red and White colors with lighter accents
and is highly polished all around except for the bottom. It makes
for a very interesting display piece or would make a nice gift.
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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
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$70.00 |
PR406b
Here is something different from the gift department at the
Rock Shed. This is a very nice specimen of Septarian shaped into a bowl.
This extraordinary specimen has a good color mix with nice Yellow Calcite
crystal and plenty of Brown Aragonite with subtle "rainbow" reflections. It measures
6 1/2" wide x 5 1/2" x
1 1/2" tall and weighs nearly 1 1/2 pounds. It has a very nice polished finish on the entire
piece bringing out the wonderful character. A perfect
gift for that perfect person.
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Septarian, also know as a type of Concretion, is a volume of sedimentary
rock in which a mineral cement fills the porosity. Concretions are often
ovoid or spherical in shape. They form within layers of sedimentary
strata that has already been deposited. It is composed of a Carbonate
mineral such as Calcite, a Silica such as Chert, Flint or Jasper or an Iron
Oxide such as Goethite or Hematite. It is commonly found in Shale, Siltstones
and Sandstones.
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Septarian Bowl
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$35.00 |
PR407b
Here
is an amazing discovery! This is an exceptionally pretty Las Choyas
or Mexican Coconut and has been cut and nicely polished on the face.
This lovely coconut has a very pretty bluish grey banding around a
gorgeous center with sparkling light to clear Crystals. The lovely
coconut
measures 5" x 4 5/8" x almost 2 1/2" thick and weighs 2 1/2 pounds.
This Las Choyas 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
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$100.00 |
PR408b Here is something different for the
polished rock collector. The very detailed and exceptional Brazilian Agate
Skull exhibits a nice array of Agate banding, open crystal cavity all
in a fabulous design. It measures 3 3/4" long x
2 1/2" wide x 2 5/8" tall.
A very nice piece and would make a super gift
for a special person!
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Click
here to view more Skull carvings!
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 Skull
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$75.00 |
PR409b This is a very pretty, above average
quality Agate Free Form. This very cool specimen has a pastel bluish
grey color and lots of contrasting accents. It has an excellent design
with several natural cavities and cool crystal areas all in a fabulous
design. This beautiful item measures 3 3/4" x 3" wide x 7 7/8" tall and
weighs over 2 1/2 pounds. Very nice!
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Agates mostly occur as nodules in volcanic rocks or waters containing
silica in solution 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.
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Agate
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$285.00 |
PR410c This is a great find!! Here is an
exceptional Eagle carved from gorgeous Fancy Jasper. It has a
captivating mix of colors all in an interesting design to provide
unbelievable character to the appearance. It measures 4 5/8"
long x 2 5/8"
wide x 5 1/8" tall and has a very nice polish. This
awesome specimen makes a great decoration as well as being a great gift. Very cool!
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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. |
Fancy Jasper Eagle
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$85.00 |
PR411b
Here is a very different item here
at the Rock Shed. This is a pretty
Woodworthia Petrified Wood specimen from Zimbabwe. This gorgeous
piece
measures over 5 1/4" x almost 3 3/8" x 3 1/4" tall and has been highly polished
on the top end to show the lovely colors it is made of. The
sides are left natural showing the rough bark and how this material had
seeds coming out of the bark. This
piece was cut and polished in our own Lapidary department. A very
unique and beautiful addition
to any rock collection.
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view
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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
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$28.00 |
PR413c
This is a beautiful
natural Copper slab from from the Keweenaw Peninsula of Upper Michigan.
The beautiful specimen has been smoothed, highly polished on the top
surface and then covered with a clear coat to show the gorgeous natural
Copper color. The lovely piece measures 2" x 2 3/4"
x 1" thick. Very cool indeed!
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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.
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Michigan Copper Slab
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$85.00 |
PR414c Here's a cool new item, a gorgeous Madagascar
Jasper Obelisk. It has a fabulous array of colors in a wonderful design.
It has a good polish and measures 2 5/8" x 2 3/8" x 9 5/8" tall. A truly one-of-a-kind item so grab it
quick!
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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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Madagascar Jasper Obelisk
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$45.00 |
PR415b
This is a
gorgeous specimen of Petrified Wood from Madagascar. It has a
beautiful dark Red colors accented by Browns, Orange and Cream on different
sides or areas with a fantastic design. This awesome piece is highly polished and measures
nearly 3 3/8" x 2 3/8" wide x 4 1/4" tall . The exceptional polish
brings out the wonderful character of the wood showing the true beauty.
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Click
here to view more Petrified Wood specimens!
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
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$50.00 |
PR416c
Here is an amazing item! This is
a beautiful Malachite slab from Zimbabwe, Africa.
It has a good mix of the different green Malachite colors in the various
swirls. It measures approximately 5 5/8" x 3 1/8" x 7/8" thick and
has a nice polish. A really nice piece!
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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.
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Malachite
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$65.00 |
PR420c This
is a gorgeous slab of high quality Fluorite. It measures 5 5/8" x 4
5/8"
x 1/2" thick. It is highly polished on both sides with rich deep colors
of Purple and Aqua with lots of other accents. It has great clarity,
fabulous inclusions and subtle "rainbow" reflections. Grab this beauty
quick!
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Fluorite, also referred to as fluor-spar, is a mineral composed
of Calcium Fluoride. It is a widely occurring mineral found world wide and
is often found with metallic minerals such as Galena, Sphalerite, Barite,
Quartz and Calcite. Fluorite may fluoresce strongly in ultraviolet light
which may be due to the presence of some impurities such as Yttrium. Blue
is the most common color but red, purple, green, yellow and white are also
frequent. It can be used in high performance telescopes, camera lens,
enamels and in the making of opalescent glass. |
Fluorite
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