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Cost
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Item
Description
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Click Picture
for Larger Image
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$225.00 |
PR500b This is a
very cool larger, very pretty Brazilian Agate slab. The agate slab has
fantastic banding in shades of blue, grey, brown, rusty yellow
surrounding a lighter colored center. The irregular shaped slab measures
almost 13 1/4" wide x 9" x almost 1
1/2" thick and weighs 8 pounds. This gorgeous agate slab also has rough
natural edging and an
unpolished back. A stunning piece that would look fabulous mounted
on a wall, window, or propped up with a stand on a shelf. Just
beautiful!
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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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Brazilian Agate
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$40.00 |
PR501c
This is a nice larger Petrified Wood specimen
from Arizona. This lovely Petrified Wood specimen has
rich Pink, Red, and Brown with other colors mixed in with an unique
design.
It measures 7 1/4" x 5 1/4" x
almost 1 7/8" thick and
has been nicely polished on one side. It has been cut and polished
in the Rock Shed's own Lapidary department. The specimen has cracks or
fractures that are common for Petrified Wood material.
A truly beautiful piece of polished Wood.
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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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$50.00 |
PR502b
Here is a very beautiful, above average quality, single terminated Quartz
Crystal from Brazil. The large Crystal measures 4 7/8"
tall x
3 1/4" x 2 7/8"
and has a good clear appearance near the tip with some interesting
inclusions. The Crystal has very nice facets and a good finish.
There are some minor dings in the edges and are reflected in our price.
An excellent large Crystal for any collection.
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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
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$36.00 |
PR503c This is an
above average quality Rose Quartz Free Form from Brazil. This
gorgeous Rose Quartz has a lovely rose Pink color with lighter accents.
It has lots of character with sparkly inclusions and a great polish.
It measures almost 2 3/8" wide x 2 1/2" x nearly 4 5/8" tall . A
very nice piece indeed!
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Rose Quartz is a type of Quartz which exhibits a pale pink to rose red
hue. The color is usually considered as due to trace amounts of Titanium,
Iron or Manganese, in the massive material. Some Rose Quartz contains
microscopic Rutile needles which produce an asterism in transmitted light. |
Rose Quartz
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$45.00 |
PR505b
Here is a very nice, above average quality vase made from Peacock Marble from
China. It
measures almost 3 5/8" in diameter x 8" tall and has a nice exterior
polish. This vase has an unique design which exhibits several colors
and designs in different areas of the vase. Definitely a
one-of-a-kind treasure.
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Click
here to view more Vases from Marble or other materials!
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.
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Marble Vase
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$20.00 |
PR506c This is a
very nice Campo del Cielo Meteorite from Argentina that fell to earth some
4,200 to 4,700 years ago. It measures 1 1/8" x over 7/8" x 3/4"
thick, weighs 1.4 ounces and has a natural sheen on the Black metallic
finish. These Meteorites are special in that they have "finger
print" marks on the surface which are the result of the melting of the
material upon entering the atmosphere from outer space. A cool gift
or just keep it for yourself.
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A Meteorite is a natural object originating in outer space that survives
an impact with the Earth's surface without being destroyed. There are
3 types of meteorites: stony, which are mainly composed of Silicate minerals;
Iron, which are largely composed of metallic Iron-Nickel; and stony-Iron,
which are composed of both types of media.
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Campo del Cielo Meteorite
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$45.00 |
PR507c
This is an enormous and
very nice Dugway Geode from Utah and from an old collection we recently
purchased. The inside of the lovely irregular cavity is lined a
variety of different textures from
fine druzy Quartz Crystals with a pale gray to nearly clear color to pale
pink and clear crystals. The awesome Dugway Geode has a highly
polished
finish on the cut face with the balance left natural. It measures
over 6" wide x 5" x almost 2 5/8" thick and weighs 2 3/4 pounds. It fluoresces a
pretty green with some blue and a hint of orange under Short Wave UV
light. A must have for the collector or an
excellent gift for someone!
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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
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$65.00 |
PR508c Here is a
excellent example of Blue Calcite from Mexico. It has many very nice
calcite crystals, of various Blue colors with lighter accents and red
streaks in places. It measures over 8" x 6" x almost 4 1/2"; weighs
10 1/2 pounds and has a
sparkly polished appearance. A true wonder of nature. Another
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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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Blue
Calcite
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$80.00 |
PR509b
Here is something new at the Rock Shed. This is a very nice, above average
quality Brazilian Agate slab. It measures 10" wide x 5 3/8" and nearly
1 1/8" thick with a nice high polish on the face. The beautiful Agate slab has a lovely
blue-grey center and two cool crystallized center
cavities with sparkly accents. Very nice!
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view of center
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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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Brazilian Agate
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$40.00 |
PR510b
This is a large polished Slab from a Septarian Nodule. This
gorgeous slab has a very pretty Yellow Calcite center with contrasting
Brown Aragonite all in an interesting design. It measures almost 7
3/8" x
5 1/4" x 1/2" thick and an excellent polish on the face. An
outstanding Septarian slab! Another photo
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Click Here to See More Septarian Specimens like this
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.
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Septarian Slab
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$70.00 |
PR511c
Here is a beautiful and
very colorful polished piece of Poly Chrome Jasper. This interesting specimen has a nice
blend of Green and Orange accent colors on a Dark Cream background all in
a nice design. This awesome free form measures nearly 3 1/2" wide x
almost 2 3/8" x 6 3/4" tall and is highly polished on all sides except
for the bottom. A lovely addition to any 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.
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Poly Chrome Jasper
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$30.00 |
PR512b
This is something different from the Rock Shed. Here is a very nice,
above average quality, rose and lavender colored Petrified Wood Limb Cast from
Oregon. This large piece measures almost 3" long x 2 1/4"
x almost 3 3/8" and
is polished on one face. This is an extremely nice specimen and will
complete any Petrified Wood collection.
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Click here to view more Limb Casts!
A limb cast is a psuedomorph where the
original wood has been replaced by chalcedony. These pieces form when a tree was buried by ash. The wood is burned away by
the hot ash and a "cast" is left. Minerals in the groundwater then
permeated the cast, replacing the original organic matter and turning it
to stone. The result is a rock that has the form of a tree limb. Some of
these casts show the bark and wood textures. Pink and green limb casts are
highly prized by collectors. |
Petrified Wood Limb Cast
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$90.00 |
PR513b
This is a lovely piece of high quality Purple Amethyst with a very nice crystal
cavity that goes completely through. It measures approximately 7" x
over 4 1/4" x 4 1/2"
and has a super nice appearance. This beautiful cluster has very
good, intact points and a very pretty soft Purple color. Very, very cool!
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Click
here to view more Amethyst specimens!
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
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$25.00 |
PR514c
This is a piece of pretty multi-colored Green Calcite.
The Green Calcite has nice different Green colors with
Raspberry, Cream, White and nearly clear sparkly accents. It
measures 5 3/4" x almost 4 1/2" x nearly 3 3/4"; weighs
nearly 3 1/4 pounds and has a nice
polish. A true beauty.
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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. |
Green Calcite
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$70.00 |
PR515b
Here is very pretty Carnelian carved into a free form from Madagascar. It
measures nearly 4 1/4" wide x 2 3/48" x nearly 5 3/8" tall has a nice polish. It
has a nice soft mix of colors including dark Cream, burnt Orange and
dark Reds, a nice crystal cavity; all in a lovely design unique to Carnelian. Close
inspection shows some healed fractures, common for Carnelian. This
beautiful piece makes an nice display and would make an excellent
gift.
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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.
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Carnelian
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$16.00 |
PR516b Here is a
very nice, very unique Onyx Box from Pakistan. This lovely box has
an interesting color scheme with mostly green accented by cream and
various brown and red colors.
The pretty and useful box measures almost 3 7/8" x 3" wide x 2" tall
including the lid with a nice polish and appearance from every angle.
A great gift or keep it for yourself!
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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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$225.00 |
PR517b Here is
something different from the gift department at the Rock Shed. This
is a very cool Petrified Wood slab with a fully functional bowl carved
into the top. The Madagascar Petrified Wood is highly polished on
the top side with it's amazing colors and design unique to petrified wood.
The sides are left natural and have a rugged texture only adding to it's
wonderful character. This lovely piece measures over 10" x
almost 8 1/2"
x 2" thick and weighs over 9 pounds. A perfect gift for that perfect person.
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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 Bowl
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