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|
Cost
|
Item
Description
|
Click Picture
for Larger Image
|

|
$45.00 |
PR800c
This is an awesome specimen of Petrified Wood
from South Dakota. It has a beautiful array of Brown colors
in the highly polished face accented by various different
textures around the edge. The nice polish brings out the wonderful
character of the wood showing the true beauty. This Petrified Wood
measures 7 1/4" across the widest x 6" x 1 3/8" thick and weighs
over 3 1/2 pounds. This one-of-a-kind piece was created right here in our
Lapidary Department. The piece is actually darker than appears in the
photo. Exceptionally nice!
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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. |

Petrified Wood
|

|
$40.00 |
PR801c This is a gorgeous Rose Quartz heart from
Madagascar. It measures almost 3 3/8" wide x nearly 3 1/8" x 1
3/8" thick and has a nice polished finish.
The exceptional heart has a beautiful Rosy Pink color with amazing sparkly highlights
and inclusions. A great collectors item or a super gift.
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Click
here to see more hearts!!
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.
|
Rose Quartz Heart
|

|
$45.00 |
PR802b
Here is a very different item!! This is a very nice Splash Copper specimen from Upper
Michigan. It
measures nearly5" x almost 3 1/2" x over 2 5/8"; weighs
over one
pound and has
a lovely copper color throughout. A very nice conversation piece or a
pretty display item. Very
cool!
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Click
here to view more Native Copper specimens
!!
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.
|
Splash Copper
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|
$30.00 |
PR803c
Here is an amazing
discovery! This is a very nice half of a Las Choyas or Mexican
Coconut Geode that has been cut to show the beautiful Quartz crystals
inside. The pretty geode half measures 4" x 3 1/2"
x almost 2" thick and has a nice polish on the face. This 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.
|

Las Choyas Geode
|

|
$50.00
|
PR804b
Here is a very nice piece of Petrified Wood from the Black Hills of
South Dakota. It measures 5 1/2" x over 3 1/4" x almost 2 1/4" and
has a polished finish on the surfaces. It has a great design, a nice
variety of different Brown colors with lots of character.
As you can see from the photos there are some fractures but they do not
affect the stability of this piece. This awesome example was polished in our own
Rock Shed Lapidary section.
The pictures don't show the true beauty!
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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.
|

South Dakota Petrified Wood
|

|
$120.00 |
PR805b
Here is a very beautiful slab of a Brazilian Agate with an outstanding
design. It measures 10 3/4" wide at the longest distance x 9 1/4" x 1"
thick. It has a nice unpolished edge surrounding the Blue, White and Grey center with unique
banding, fabulous crystal, crystal cavity and subtle "rainbow" reflections. It has a very nice polish on the face bringing out the
wonderful character. Just extremely nice.
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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
|

|
$75.00 |
PR806c
This is a gorgeous and very beautiful Green Malachite specimen
from South Africa. This very pretty specimen has a lovely array of various green
colors with lighter accents. It is highly polished all around
the top surfaces. The overall size is almost 6 1/2" x 3 1/8" x
nearly 2 1/4" thick. A great addition to your collection.
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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.
|

Malachite
|

|
$100.00 |
PR807c
Here is awesome and nicely polished Smokey Quartz Crystal with
Tourmaline and sparkly Rutiles and lots of character. This awesome Smokey
Quartz Crystal has a beautiful shape with several dark Tourmaline and
other inclusions that only add to it's character. This
gorgeous beauty measures 3 1/4" x almost 3 7/8" x nearly 4 3/8"
tall and has a good appearance throughout the crystal. It does have
a couple very minor dings along the edges and tips that are reflected in
our price. Very, very nice! Another photo
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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.
|

Smokey Quartz Crystal
|

|
$45.00 |
PR808b
Here is something different for the mineral or rock collector.
This is a beautiful specimen of Prehnite from South Africa. The
lovely Prehnite has gorgeous Green colors mixed with areas of good
clarity and a nice assortment of
inclusions all in an interesting design. It measures 7 3/8" x
almost 3 5/8" x nearly 3" and has a very nice polish on the cut
face done here at the Rock Shed. A pretty item for the person who
has everything.
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Prehnite is a semitransparent to translucent mineral with a chemical
formula of calcium and aluminum. It normally ranges in color from
yellow-green to apple green. Prehnite is a very hard mineral ranging from
6 to 6.5 on the Mohs scale It is in the orthorombic crystal class usually
found in radiating botryoidal (grape like) forms. It frequently occurs
with epidote and quartz minerals. |

Prehnite
|

|
$26.00 |
PR809b This is a
beautiful Vase made from Chinese Marble. This is a multi-colored
vase with a nice blend of various Greens, Brown and Greys.
It measures nearly 2 7/8" in diameter x 5 7/8" tall, weighs
almost 2 pounds
and is nicely polished except for the very bottom. A very nice addition
to any polished collection or it would make a great gift.
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Peacock Marble is from Southwest China and formed in Limestone by
heat and pressure in the earth's crust. Recrystallization during Himalaya
formation caused the limestone to change in texture and makeup. Fossilized
materials along with it's original carbonate minerals, recrystallized and
formed large, coarse grains of calcite. Impurities present in the
limestone during the recrystallization affected the mineral composition of
the marble. The minerals that result from the impurities give the
marble up to ten different colors. The corresponding colors and minerals
that can be found: Green - Serpentine; Purple - Manganese spar; Brown -
Iron; Gray - Silicon Dioxide; Red - Hematite; Orange - Iron; White -
Calcite; Violet - Iron Manganese; Yellow - Limonite; Blue - Copper,
Cobalt, Chromium; Black - Carbon, Iron, Manganese. Peacock Marble is also
called "seven color Jade" in local language.
|

Marble Vase
|

|
$120.00 |
PR810c Here is
something different from the gift department at the Rock Shed. This is a
very cool Poly Chrome Jasper Free Form. Highly polished on all sides, it
has amazing pastel and bold colors in an excellent Poly Chrome design.
This gorgeous piece measures 9 3/4" tall x 5 3/4" x 3
3/8". It would make a great addition to any
rock collection or a beautiful decoration item in your home.
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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.
|

Poly Chrome Jasper
|

|
$36.00 |
PR811b
This is a very pretty Marble vase from China. It measures almost
6" tall x 3 1/4" in diameter and has a nice polish. It has a nice soft mix
of colors including Yellow, White, Grey, Green, Tan and Brown colored accents. A great gift or just
keep it for yourself. Another
photo
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Peacock Marble is from Southwest China and formed in Limestone by heat
and pressure in the earth's crust. Recrystallization during Himalaya
formation caused the limestone to change in texture and makeup. Fossilized
materials along with it's original carbonate minerals, recrystallized and
formed large, coarse grains of calcite. Impurities present in the
limestone during the recrystallization affected the mineral composition of
the marble. The minerals that result from the impurities give the
marble up to ten different colors. The corresponding colors and minerals
that can be found: Green - Serpentine; Purple - Manganese spar; Brown -
Iron; Gray - Silicon Dioxide; Red - Hematite; Orange - Iron; White -
Calcite; Violet - Iron Manganese; Yellow - Limonite; Blue - Copper,
Cobalt, Chromium; Black - Carbon, Iron, Manganese. Peacock Marble is also
called "seven color Jade" in local language.
|

Marble Vase
|

|
$45.00 |
PR812c
This is a very pretty, larger Onyx vase from Pakistan. It has a
nice soft mix of colors including Greens, Oranges, Cream, Tan and various
Brown colored accents. It measures almost 4 1/8" in diameter x
9 3/4" tall and has a
nice polish. A great gift or just keep it for yourself. Another
photo
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photo
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photo
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photo
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.
|

Onyx Vase
|

|
$40.00 |
PR813c
Here is a beautiful and unique Amethyst Crystal Cluster from Vera Cruz,
Mexico. It measures 3 1/8" x nearly 2 1/2" x almost 1 1/4"
tall.
It has a nice pale Purple tipped crystals on a sparkly pale green matrix with
lots of tiny
clear crystals throughout and displays very well. A very fragile but gorgeous piece!
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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.
|
Vera Cruz Amethyst Crystal Cluster
|

|
$20.00 |
PR814b Here is something different from the Rock
Shed. This is a very nice Optical Calcite specimen with good clarity
and excellent
fluorescence. The Calcite
has an interesting color with it's pale Peach to Pink. It all shows a brilliant Pink under long
wave Ultraviolet Light. One corner has some impurities giving it an
interesting character. It measures 3 1/4" x 2 5/8" x 1 7/8" thick.
Something different for your polished rock collection!
Another
photo
Another UV photo
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.
|
 
Optical Calcite
|

|
$15.00 |
PR815b
Here is something different from the gift shop at
the Rock Shed. This is a very nice, above average quality
Mexican Trancas Geode
half. The inside reveals very nice clear and sparkly Quartz
Crystals. The face where it was broken open is natural and not polished.
The beautiful Geode measures almost 3 1/2" x 3" x 2" thick
with a natural, rough texture on the outside. This is a unique, very
interesting, one-of-a-kind creation to keep for your own or give as a
gift.
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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. |
Trancas Geode
|