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Page 6
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Cost
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Item
Description
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Click Picture
for Larger Image
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$14.00 |
M601b
Here is an above average quality piece of Kyanite from Brazil. This
is a nice specimen measuring almost 4" x nearly 2 1/4" x over 1" and has a very pretty iridescent
sheen. This mineral has a beautiful soft Blue color with lots of
character. A very nice, unique specimen.
Another photo
Kyanite is a typically blue Silicate mineral that is commonly found
in Aluminum rich metamorphic pegmatites and/or sedimentary rock. It
is used primarily in refractory and ceramic products including porcelain plumbing
fixtures and dinnerware. It is also used in electrical insulators and
abrasives. It is definitely a collector's mineral.
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Kyanite
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$18.00 |
M600c
Here is something different for the mineral collector. This is a larger
Aragonite specimen. It measures over 4 1/4" x 3 5/8" x 2
5/8" and has a natural
White color with a very sparkly appearance. This material has a botryoidal
shape and lots of character.
Another photo
Another photo
Aragonite is a Carbonate mineral that can occur in conjunction with
Calcium Carbonates. Aragonite differs from Calcite in the formation
of the Crystal shapes which can be in lattice, crystal, columnar or fibrous
in many different designs, shapes and sizes. Aragonite will form in
mollusk shells, oceans and salt water caves as inorganic precipitates called
marine cements and speleotherms. Ammolite is a form of Aragonite with
impurities that make it iridescent and valuable as a gemstone.
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Aragonite
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$35.00 |
M602c
This is something different for the mineral collector. Here is a
nice section of a Purple Amethyst Geode. The specimen measures
5 3/8" x
nearly 3 1/2" x 2 3/8" and has a natural sparkly appearance. This lovely
piece has an array of nice various shades of Purple Crystals. Just plain
beautiful!
Another photo
Amethyst is a purple variety of Quartz often used as an ornament.
Upon exposure to heat, Amethyst generally becomes yellow, which some refer
to as Citrine or "burnt" Amethyst. It occurs in color from a light,
slightly pinkish violet to a deep grape purple. It is widely distributed
as a mineral.
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Amethyst
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$35.00 |
M617c
This is a very nice specimen of Azurite in matrix. It is a pretty
deep Blue color with areas of Green mixed in with Black. It measures over 3
1/8" x 3 1/4" x
1 7/8". This is a beautiful work
of nature. Another photo
Another photo
Azurite is a mineral belonging to the Carbonate group of minerals.
It is commonly found with Malachite, Goethite and Calcite. It is typically
associated with Copper deposits including Limestone which is the source of
the Carbonate.
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Azurite
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$12.00 |
M605b
Here is a very nice specimen of Smithsonite. from Chihuahua, Mexico. It has
a pretty pale Pink color desired by many collectors. It measures approximately
1 1/2"
x over 1 1/8" x nearly 3/4" with a natural unpolished botryoidal surface.
Another photo
Another photo
Smithsonite is a mineral ore of zinc, commonly confused with
Hemimorphite until it was realized they are two distinct minerals. They
are similar in appearance and are found in similar colors. Smithsonite
often occurs in association with other minerals like Hemimorphite,
Willemite, Cerussite, Malachite and Azurite. It was named in honor of
James Smithson first identified the mineral and whose bequest established
the Smithsonian Institution.
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Smithsonite
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$28.00 |
M616b
Here is something different for the mineral collector. This is a
very nice, above average quality combination mineral which includes White
Quartz, Yellow Calcite, sparkly Pyrite and Galena all wrapped up in one super
specimen. The mineral group measures 3 1/2" x 3 1/2" x 1 3/4" and has
a beautiful appearance. 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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Pyrite-Quartz
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$24.00 |
M618c
Here is something different for the mineral collector. This is a
very nice, above average quality Fluorite specimen from China. The
mineral has a very pretty purple color with white accents in a natural and
unpolished state. It measures 3 3/8" x nearly 2 1/2" x 1 1/8" and has
a beautiful appearance. Another photo
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.
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Fluorite
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$26.00 |
M607b
Here is a very nice interesting specimen of an Apatite crystal resting in a bed
of unidentified material. The pretty green crystal measures 1" long
and the matrix is over 3" x 1 5/8" x 1 3/4" with a natural texture and
finish. This cool mineral has several other tiny green Apatite
Crystals scattered about. A very beautiful addition to any rock
collection.
Another photo
Apatite is a part of the phosphate group of minerals that was formed in
igneous rocks and in metamorphosed limestone. Apatite is translucent or
transparent and usually green in color but can be colorless, white,
yellow, bluish, reddish, brown or purple.
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Apatite
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$30.00 |
M613b Here is a smaller
specimen of Hemimorphite from Mexico. This mineral measures 5" x 3 1/2"
x 2" and has nice sparkly crystals covering much of the entire specimen.
A very nice, very different mineral for your collection.
Another photo
Hemimorphite is a Silicate mineral that is chiefly associated with Smithsonite.
It is more rare than Smithsonite due to the development of Crystals.
It may show strong green fluorescence in short wave ultraviolet light and
weak light pink fluorescence in long wave ultraviolet light. It is found
worldwide.
Limonite is an ore consisting of a mixture of hydrated Iron Oxide-Hydroxide
of varying composition of minerals such as Goethite, Lepidocrocite, or Jarosite.
It has been mined with Hematite as an Ore for the production of Iron. Limonite
is heavy and has a yellow-brown color. It is often used as the pigment
ochre in many paints.
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Hemimorphite
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$18.00 |
M615c
Here is something different for the mineral collector. This is a
interesting Aragonite specimen. It measures 3" x 3" x 2" and has a
natural white and brown color with a sparkly appearance. This
material has a botryoidal
shape and lots of character.
Another photo
Aragonite is a Carbonate mineral that can occur in conjunction with
Calcium Carbonates. Aragonite differs from Calcite in the formation
of the Crystal shapes which can be in lattice, crystal, columnar or fibrous
in many different designs, shapes and sizes. Aragonite will form in
mollusk shells, oceans and salt water caves as inorganic precipitates called
marine cements and speleotherms. Ammolite is a form of Aragonite with
impurities that make it iridescent and valuable as a gemstone.
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Aragonite
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$40.00 |
M614b
Here is an above very nice,
average quality specimen of Malachite. The mineral measures 3
1/4" x
2 3/8" x over 2 1/4" and has a nice appearance. It has an unique
fibrous pattern and various pretty Green colors. Absolutely amazing.
Another photo
Another photo
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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$26.00 |
M604c
Here is a nice specimen of Fluorite from the Wei Shan Mine, Yunnan
Province in China. It measures nearly 3 7/8" x 2 5/8"
x almost 1 1/2". It has a beautiful range of Dark Purple to
lighter Purple to nearly clear Fluorite crystals. Absolutely amazing.
Another photo
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.
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Fluorite
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$12.00 |
M603c
Here is a new and different item at the Rock
Shed. This a very nice, very interesting Azurite Nodule. It
measures nearly 1/2" x 1/2" x 1/4" and has a very pretty deep
blue
colored crystals. You also will receive the nodule in the case it
was photographed in. Definitely something different for your mineral collection! Azurite is a mineral belonging to the Carbonate group of minerals.
It is commonly found with Malachite, Goethite and Calcite. It is typically
associated with Copper deposits including Limestone which is the source of
the Carbonate.
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Azurite Nodule
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$35.00 |
M610c Here is a very
nice specimen of Vanadinite on matrix. This mineral is from Morocco.
It measures 3" x 2 1/4" x 1" and has many hexagonal Vanadinite crystals.
This is a beautiful work of nature and very fragile.
Another photo
Another photo
Vanadinite is a mineral belonging to the Apatite group of Phosphate
minerals. It is one of the main industrial Ores of the metal Vanadium
and a minor source of Lead. Vanadinite is relatively uncommon and is
associated with Galena, Wulfenite, Limonite and Barite. It is usually
bright red or orange-red in color although it may sometimes be brown, red-brown,
grey, yellow or colorless.
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Vanadinite
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$50.00 |
M606c
Here is a very unique specimen combination of Okenite, Phrenite, and Calcite
Crystals in a Limestone matrix. This specimen is from Maharashtra, India.
It measures 6 1/2" x 3 1/2" x 2" with the majority of the mineral on one side
of the specimen. This mineral can not be polished as it would destroy
the soft, fuzzy spherical Okenite crystals and possibly dislodge the smaller
Phrenite bubble-like spheres. This is a one-of-a-kind mineral for the
one-of-a-kind mineral collector.
Another photo
Okenite is part of the Calcium Silicate
family and is an unusual mineral. It frequently appears as a cotton-ball
cluster with other minerals in matrix. The color is usually white but
may have a yellow or blue tint. Okenite has very slender long, thread
like fibers that make up a spherical or rounded aggregate. The Okenite
clusters may bring out the urge to touch the fine fibers and to test its softness.
We suggest refraining from this as the crystals are very delicate and once
touched, they are never the same again.
Phrenite is a mineral from the Calcium Aluminum Silicate group.
It can be found in shades of green, yellow or brown as well as white.
Some specimens are gem quality and make beautiful jewelry. It is found
world wide but most notable deposits are found in Australia, South Africa,
Germany and the United States.
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Okenite-Phrenite
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$45.00 |
M609b
Here is a new find at the Rock Shed. This is an above average quality,
larger piece of Goethite. It measures over 4 1/4" x 4 1/4" x
nearly 3" and has
a natural rough texture. Goethite has a White Crystalline Calcite structure
with unique Iron Ore compositions. This material is from Mexico.
Another photo
Another photo
Goethite is an Iron bearing Oxide mineral found in soil and other low
temperature environments. Historically, Goethite has been used as a
paint pigment found on cave paintings in France. Its main modern use
is that of an Iron Ore content or objects using Iron Ore. Goethite is
found worldwide usually in the form of concretions, stalactitic formations,
oolites, reniform or botryoidal accumulations.
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Goethite
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$16.00 |
M612b This is
a nice, natural native copper which has been mostly removed from the
matrix rock which was surrounding it. The white quartz matrix is visible
in many areas. It measures 3 3/8" x 2 1/4" x 1 1/8" and has a
natural texture and finish. Just a nice specimen of something
different!
Another photo
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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Copper
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$16.00 |
M608b Here is
something really different for you mineral collection!! This is a
very nice, above average quality Pyrite Sun. It measures 3" x
nearly 3" x
1/4" and has a natural,
shiny appearance. This beauty was found in the coal mines of Illinois
and are surrounded by Black shale and coal. They date in age to 350
million years old.
Another photo
Pyrite, or Iron Pyrite, is an Iron sulfide with isometric Crystals that
usually appear as cubes. It is brittle and can break or powder easily.
Its metallic luster and brass yellow hue have earned it the nickname of "fool's
gold" due to many miners mistaken it for the real thing. Ironically,
small quantities of actual gold are sometimes found in Pyrite. It is
the most common of the sulfide minerals and is usually found with other sulfides
or oxides in Quartz veins, sedimentary or metamorphic rocks.
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Pyrite Sun
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$22.00 |
M611b This is a very
nice, above average quality Smokey Quartz specimen. It measures
over 3 3/4" x
3 1/2" x 1 1/4" and has a pretty sparkly appearance. This Quartz
material has been heat treated which gives it the deep, rich Black color.
This material is from Arkansas.
Another photo
Another photo
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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Smokey Quartz
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