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Page 3
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Cost
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Item
Description
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Click Picture
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$15.00 |
M313b
Here is a very nice, above average quality, larger Pyrite nugget from Peru.
It measures 3" x 2 1/4" x 2 1/2" and has a natural shiny finish. This
beauty is a one of a kind, very well defined specimen that will not be duplicated.
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 Nugget
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$35.00 |
M314c
A nice specimen of natural Copper from Keweenaw Peninsula, Michigan. This
is natural native copper which has been removed from the matrix rock which
was surrounding it. It is the natural native copper just as it formed
in the rock. It weighs in at 1 lb and 8 oz.
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 Freeform
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$45.00 |
M315b
Here is a very nice quality specimen of White Apophyllite. This beautiful
mineral measures 6" x 4 1/2" x 2" and has a natural, unpolished appearance
with sparkly iridescence.
Apophyllite, a Zeolite, is Silicate mineral with very well defined clear
Crystals and is very popular as a collector's mineral. The Crystal structure
will refract like in obvious rainbows and can form "natural pyramids" when
tumbled.
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Apophyllite
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$30.00 |
M316c
This is a larger, clear Calcite Rhombus with many occlusions through out the
entire piece. It measures approximately 2 3/4" x 3 1/4" x 1 1/2" in
depth. It is an interesting addition for your collection. I
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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Calcite
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$15.00 |
M300b
This is a very pretty, desert Sand Selenite specimen from Morocco. This specimen
measures 5 1/2" x 3" x 2". This unusual piece has a soft Copper
Brown color with a real unique shape. A one of a kind gift for that
one of a kind person. Another photo.
Selenite, also known as Satin Spar, Desert Rose and Gypsum Flower, is
a variety of Crystalline Gypsum. Gypsum is a very soft mineral composed
of Calcium Sulfate. Desert Roses are rosette shaped Gypsum with outer
druze of sand or with sand throughout and often sand colored.
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Desert Rose
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$6.50 |
M312b
This is a clear Calcite rhombus with many occlusions through out the entire
piece. It measures approximately 1 1/2" x 1 1/2" x 1 1/2" in depth.
It is an interesting addition for your collection. Item is similar
to picture. Each piece is unique therefore the size and shape many vary
slightly. 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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Calcite
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$30.00 |
M302b
This is a nice quality and beautiful specimen of polished
Malachite-Azurite from Zaire, Africa. The specimen measures 2 7/8" x
2 1/2"
x 1 1/4". The Malachite-Azurite is polished on all sides.
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-Azurite
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$30.00 |
M306b
This is an interesting Barite specimen from China. It measures 2
1/4" x 2" x 1 5/8" and has a nice sparkly, shiny appearance. This
Crystal cluster has unique tabular Crystals with a translucent Green color
and Gold accents. A very cool mineral.
Another photo.
Barite is a mineral
consisting of Barium sulfate and is generally white or colorless. It
is used in the manufacture of paints and paper. Although Barite contains
a 'heavy' metal, Barium, it is not considered to be a toxic chemical because
of its extreme insolubility.
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Barite
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$30.00 |
M309c This is something
different for any collector. Here is a very nice, very pretty Selenite
Crystal from Utah. It measures 7" x 4" x 1" and has a natural shiny
appearance. A great conversation piece or use it wire wrap a new piece
of jewelry.
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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$32.00 |
M305b
Here is an Apophyllite-Quartz mineral combination. This amazing mineral
measures 6 1/2" x 5 1/4" x 2 1/4" and has a super sparkly appearance.
A great way to begin your mineral collection!! Apophyllite, a Zeolite,
is Silicate mineral with very well defined clear Crystals and is very popular
as a collector's mineral. The Crystal structure will refract like in
obvious rainbows and can form "natural pyramids" when tumbled.
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Apophyllite-Quartz
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$35.00 |
M307b
This is an interesting mineral combination! Here is an Apophyllite-Stilbite
mix. This fantastic mineral measures 4 1/2" x 3 1/4" x 2 7/8" and has a super sparkly
appearance. A great way to begin your mineral collection with a super
combo mineral!! Another photo.
Apophyllite, also a Zeolite, is Silicate mineral with very well defined
clear Crystals and is very popular as a collector's mineral. The Crystal
structure will refract like in obvious rainbows and can form "natural pyramids"
when tumbled.
Stilbite is another Silicate mineral from the Zeolite family.
It is often characterized by its sheaf like aggregates. The color is
usually white and when the cleavage is perfect, will have a distinct pearly
luster.
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Apophyllite-Stilbite
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$35.00 |
M303b
Here is a very interesting Prehnite-Epidote specimen. It measures
1 1/2" x 1 1/4" x 1" and has a lightly frosted appearance. This mineral
has an botryoidal shape with several Epidote Crystals clinging and embedded
into the pretty Green baubles. Absolutely amazing. Prehnite
is a Phyllosilicate mixture of Calcium and Aluminum. Although it is
not a Zeolite, it is often associated with them and with Datolite and Calcite,
in veins and cavities of Basaltic rocks, sometimes in Granites, Syenites or
Gneisses. The color varies from light green to grey to white to yellow
or a mix of colors. It is translucent.
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Prehnite-Epidote
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$35.00 |
M304c
Here is something different for the mineral collector. This
is a very nice, bright Yellow Pyrite and White Quartz specimen in a dark Slate
matrix. It measures 3 1/2" x 5 1/4" x 1 1/4" and does not have any polish.
A really neat, unique mineral to add to your collection.
Another photo.
Sulfur is an abundant, tasteless, multivalent non metal mineral.
In its native form, it is a yellow crystalline solid. It can be found
as a pure element or as Sulfide and/or Sulfate minerals. It is primarily
used commercially in fertilizers but is also widely used in gunpowder, matches,
insecticides and fungicides. It may have a faint odor similar to that
of matches which is often from the composition of the hydrogen in the sulfuric
compounds. When heated, Sulfur will turn into a blood red liquid and
when burned it emits a blue flame and the peculiar, notable odor.
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Pyrite-Quartz
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$30.00 |
M312b
Here is something different for the mineral collector.
This is a very nice, good quality Vera Cruz Amethyst Crystal cluster.
The specimen measures 2 1/4" x 1 1/2" x 1 1/2" and has over 15 well defined
Crystals resting in matrix. The larger Crystals have a darker Purple
tip while the smaller Crystals have a soft Lavender color.
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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Vera Cruz Amethyst Crystal Cluster
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$35.00 |
M301b
Here is an above average quality of a larger specimen
of Hemimorphite Crystals setting on a dark Rust base of Limonite. It
measures 4 1/2" x 2 3/4" x 3 5/8" with a natural rough appearance and
many differently shaped translucent Grey and Clear Crystals. A different
mineral for the different collector. This material is from Mexico.
Another photo.
Hemimorphite is a sorosilicate mineral that is chiefly associated with
Smithsonite. It commonly forms crystalline crusts and layers and also
massive, granular, rounded aggregates or finely shaped clusters of crystals.
It may fluorescence a strong green in UV short wave light and weak pink in
UV long wave light.
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-Limonite
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$12.00 |
M308b
This is a Ruby Mica set of specimens. It is approximately
5 pieces or the equivalent equal to 1 pound. The pieces range in measurements
of 2" to over 6". This Muscovite Mica is mined in Custer County, South
Dakota and will be shipped to you as it comes out right from the mine.
A great choice in minerals for any collector. Please remember these
pieces do come in random sizes, therefore no choice can be given.
Mica is from the group of sheet Silicate minerals. Mica is widely
distributed and occurs in igneous, metamorphic and sedimentary regions throughout
the world. Large Mica Crystals are used for various applications and
are typically mined from Granitic Pegmatites. It has a high dielectric
strength and excellent chemical stability which makes it favorable in the
manufacturing of capacitors for radio frequency applications. It is
also used in the manufacturing of glass that is used in stoves and kerosene
heaters because it is heat resistant.
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Ruby Mica
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$45.00 |
M311c
Here is a nice, above average quality, Sand Selenite Rose from Mexico.
This specimen measures 4 3/4" x 4 1/4" x 4" and has a soft Grey color.
This is a unique mineral that would make a nice addition to your
collection. Selenite, also known as Satin Spar, Desert Rose and Gypsum
Flower, is a variety of Crystalline Gypsum. Gypsum is a very soft mineral
composed of Calcium Sulfate. Gypsum Flowers are rosette shaped Gypsum
with spreading fibers and can include an outer druze of sand or with sand
throughout. The difference between Desert Roses and Gypsum Flowers is
that Desert Roses look like roses, whereas, gypsum flowers are a myriad of
shapes.
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Sand Selenite Rose
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$16.00 |
M318b
Here is a nice, above average quality, Sand Selenite Rose from Mexico.
This specimen measures 4 1/2" x 3" x 2 1/2" and has a soft Grey color.
This is a unique mineral that would make a nice addition to your
collection. Selenite, also known as Satin Spar, Desert Rose and Gypsum
Flower, is a variety of Crystalline Gypsum. Gypsum is a very soft mineral
composed of Calcium Sulfate. Gypsum Flowers are rosette shaped Gypsum
with spreading fibers and can include an outer druze of sand or with sand
throughout. The difference between Desert Roses and Gypsum Flowers is
that Desert Roses look like roses, whereas, gypsum flowers are a myriad of
shapes.
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Sand Selenite Rose
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$65.00 |
M310c
This is a very pretty, above average quality, larger, desert Selenite flower
specimen from China. This specimen measures 7 1/2" x 9 1/2" x 5". This unusual
piece has a soft Beige color with White accents resulting in a real unique
shape. A one of a kind gift for that one of a kind person.
Another photo.
Selenite, also known as Satin Spar, Desert Rose and Gypsum Flower, is
a variety of Crystalline Gypsum. Gypsum is a very soft mineral composed
of Calcium Sulfate. Desert Roses are rosette shaped Gypsum with outer
druze of sand or with sand throughout and often sand colored.
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Selenite Rose
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