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Cost
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Item
Description
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Click Picture
for Larger Image
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$35.00 |
PR400b This is a nice, above average Madagascar Agate
with great color, a nice crystal center and a very unique design. It measures
5" x almost 2 1/2" x 1 3/8" 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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Madagascar Agate
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$20.00 |
PR401b
Here
is a great find. This is a lovely specimen made from Pink Opal from
Peru. The beautiful piece has a nice Pink colors with cream and
Black accents and a good polish on one end. It measures over 3 1/4"
x 1 7/8" x almost 1 1/8" thick. A great gift or keep it for
yourself!
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Opal is a colorful mineral of hydrated form of Silica related to
Quartz. It's internal structure makes it diffract light, taking on many
colors depending on the conditions when it was formed. Those colors can
range from clear through white, red, orange, yellow, green, blue, purple,
rose, pink, brown and black. Opal varies in optical density from opaque to
semi-transparent. Opal is the national gemstone of Australia, a producer
of over 93% of the world's supply.
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Pink Opal
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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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$16.00 |
PR403c Here is something different for any
collector. Here is a very nice, very pretty Selenite Crystal from
Utah. This Selenite is also known as Fishtail or Angel's Wing
Selenite. It measures 4" x almost 2 3/4" wide x nearly 1 3/4" thick
and has a natural shiny appearance. A great conversation piece or
use it wire wrap a new piece of jewelry.
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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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$65.00 |
PR404b Here is something different here at the
Rock Shed. This is an above average quality Spinel in matrix from
India.
This beauty has exceptional ruby colored crystals in the biotite matrix
with an interesting shape and design. It measures almost 4"
wide x 3 1/2" x nearly 6" tall and has a nice polish
on the face with black felt on the bottom for surface protection. This pretty piece was cut and polished here in our
own Lapidary Department. Very nice!
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Spinel is the great impostor of gemstone history: many famous rubies
in crown jewels around the world are actually spinels. It can be
colorless, but it is usually various shades of red, blue, green, yellow,
brown, or black. In Burma, where some of the most beautiful colors are
mined, spinel was recognized as a separate gem species as early as 1587.
In other countries the masquerade went on for hundreds of years. Spinels
were most often referred to as 'balas rubies', which may have referred to
their color or their country of origin.
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Spinel
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$14.00 |
PR405c
Here is something different for any collector. Here is
a very nice, very unique heart shaped Onyx Box from Pakistan. This
lovely box has an interesting color scheme with mostly cream accented by
different browns. The pretty and useful box measures over 2 5/8" wide x
2 7/8" x 1 3/4" tall including the lid with a nice polish and
appearance from every angle. An amazing item and a great
conversation piece!
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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.
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Onyx
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$160.00 |
PR406b
Here is something different from the gift department at the
Rock Shed. This is a very nice specimen of Labradorite shaped into a
bowl. This extraordinary specimen has a good color mix with a highly
iridescent "blue gold" shine that changes as the light hits it from
different angles, even on the bottom side. It measures nearly 5 1/2" wide x almost 7 5/8" x 1
7/8" tall and
weighs nearly 4 3/4 pounds. It has a very nice polished finish on
the entire piece including the bottom bringing out the wonderful character. A perfect
gift for that perfect 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 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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$65.00 |
PR408c Here is something different for the
polished rock collector. The very detailed Picasso Marble Skull has
typical pretty Picasso Marble colors with an excellent
design. It measures 2 3/4" long x 1 3/4" wide x 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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Click
here to view more Skull carvings!
Marble is a metamorphic rock consisting of Limestone but mostly
composed of Calcite. It is used extensively for sculpture, building
material 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 Skull
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$50.00 |
PR409c This is a very pretty, above average
quality Carnelian Free Form from Madagascar. This very cool specimen
has awesome colors with Orange and lighter accents has an excellent design
on each side of it with small natural cavities and cool crystal
areas all in a fabulous design. This beautiful item measures 2" x 3" wide x
5" tall .
Close inspection shows some healed fractures, common for Carnelian.
Very nice!
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Carnelian is a red or reddish-brown variant of Chalcedony but also may
come in the colors of orange and pink. It is quite common and usually
found in translucent pebble form. It is found in several areas of Europe,
Iceland and Madagascar. |
Carnelian
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$185.00 |
PR410c This is a great find!! Here is a very nice
Dragon Head made from a Brazilian Agate. It has pretty Grey Blue colors with
an awesome crystal cavity in an interesting design to provide
unbelievable character to the appearance. It measures over 5"
long x
nearly 2 3/4"
wide x 2 1/2" thick 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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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
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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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$24.00 |
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 3 5/8" x nearly 2 1/2"
x almost 1/4" thick and weighs 3 1/2 ounces. 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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$18.00 |
PR414b Here is something different from the Rock
Shed. This is a nice Optical Calcite specimen. The Optical Calcite
has a pale peach color in normal
light with more of lovely cloudy middle. It shows bright pink colors under long wave Ultraviolet Light
and measures almost 3 1/2" x 2" x 1 1/4" thick. Something
different for your polished rock collection!
Another photo
Another UV photo
Click
here for more fluorescent rocks and minerals
Click
here to buy Ultraviolet Lamps
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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Optical Calcite
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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.
Another photo
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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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$14.00 |
PR416b
This is a very pretty Amethyst
healing stone from Brazil. Amethyst is highly sought worldwide for
its legendary powers to stimulate and soothe the mind and emotions.
This gorgeous piece measures nearly 1 1/4" x over 1 3/8" x 1 3/4" and is
nicely shaped to fit your hand. It has been highly polished on all sides to show the lovely
Purple colors and is nearly clear with very pretty inclusions. A very
unique and beautiful addition
to any rock collection.
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Similar to like item.
Amethyst is a purple variety of Quartz often used as an ornament.
It occurs in color from a light, slightly pinkish violet to a deep grape
purple.
Upon exposure to heat, Amethyst generally becomes yellow, which some refer
to as Citrine or "burnt" Amethyst. It is widely distributed
as a mineral, but fine, clear specimens that are suitable for cutting as
ornamental stones.
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Amethyst Healing Stone
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$35.00 |
PR420c
Here is something different from the gift department at the
Rock Shed. This is a beautiful specimen of multi-colored Fluorite from China.
The lovely Fluorite has gorgeous Pink and Purple colors with nice
assortment of sparkly inclusions all in an interesting design.
It measures 4 7/8" x nearly 5 3/4" x 3 3/8" thick and has a very nice
polish on the cut face. An exceptional item for the person who has everything.
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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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