Minerals from Different Locations

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$45.00 M516c  Here is a very different, very beautiful light Peach and White combination mineral.  It measures 6 1/4" x 7 1/4" x 1 1/2" and has an interesting multi-textured appearance.  This mineral grouping has White Stilbite sheaves, super cool clear Fluorapophyllite cubical Crystals resting in a Peach colored nubby base covered by tiny White spheres.  Just amazing.

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.

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.

mineral

Fluorapophyllite-Stilbite


$32.00 M500b  This is a beautiful, deep Green specimen of Uvarovite Garnet.  It measures 3" x 2" x 1" and has not been polished.  It has a very nice sparkly appearance with tiny Crystal like formations.  This material is from Sarany in Ural, Russia.

Uvarovite is from a Chromium bearing Garnet group mineral species.  It is one of the rarer of the Garnet minerals and is the only consistently green Garnet species with a beautiful emerald green color.  It occurs as well formed fines sized Crystals.  Specimens of Uvarovite are much sought after by collectors for outstanding brilliance and color.

uvarovite

Uvarovite Garnet


$32.00 M515c   This is a larger, beautiful piece of Blue Kyanite from Brazil. This is a nice specimen measuring 4 1/2" x 2 1/2" x 1 1/2" and has a very pretty shaded Blue color.  This specimen has White Quartz embedded in the Blue Kyanite giving the appearance an extra sparkle and shine.

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.

mineral

Kyanite-Quartz


$24.00 M512b  Here is a very nice, larger piece of Rhodocrosite with several Calcite Crystals mixed with Galena on a Limestone bed with an extra bonus of very tiny, very sparkly Pyrite Crystals on the bottom of the specimen.  It measures 3 5/8" x 3" x 1 3/4" and has a nice peach, sparkly appearance.  This mineral is from Santa Rita Mine in Peru.

Rhodocrosite is a Manganese Carbonate mineral.  In its rare, pure form, it is typically a rose-red color but impure specimens can be shades of pink to pale brown with pink as the most common color.  Rhodocrosite is often associated with Calcium, Zinc and Magnesium.  Its main use is as an Ore of Manganese which is a key component of stainless steel and certain aluminum alloys.  It is relatively soft in formation and is very difficult to cut and therefore is rarely found faceted in jewelry.

mineral

Rhodocrosite-Calcite-Galena-Pyrite

$44.00 M510b  Here is something very different for the mineral collector.  This is a nice piece of Tetrahedrite from Pachapaqui Ancash in Peru.  This specimen measures 2 1/8" x 1 1/4" x 3/4" with several smaller crystal areas.  A really neat addition to any mineral collection.

Tetrahedrite is a rare Copper antimony sulfide mineral.  It is closely related to Tennantite and other elements, most notably Iron and Zinc along with less common Silver, Mercury and Lead.  It gets its name from the distinctive tetrahedron shaped cubic Crystals and usually occurs in massive form.  The color is steel grey to a metallic black.

tetrahedrite

Tetrahedrite

$9.00 M513b  This is a set of 5 very nice, hand selected Aragonite Crystals from Morocco.  Each Crystal measures approximately  1+" and have many radiating barrel shaped Crystals protruding from them.  Each Crystal has own unique shape and color.  A very nice gift or educational tool.  Items will be similar to like item.

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.

arragonite crystals

Aragonite Crystals

$23.00 M505b  Here is an interesting find.  This is a very nice specimen of Stibnite from China.  It measures 1 3/4" x 2 1/4" x 1" and has a sparkly Grey metallic color and an unique "spiky" appearance.

Stibnite, also known as Antimonite, is a Sulfide mineral that forms grey Crystals.  It is the most important source for the rare Metalloid Antimony.  It is used in the manufacture of fireworks, batteries, safety matches and mascara.

mineral

Stibnite

$15.00 M504b   Here is a very interesting mineral specimen of pretty Blue Calcite.  It measures 3 3/4" x 2 1/2" x 1 1/4" and has a soft opaque appearance.  The mineral has a subtle Blue and White color with a smooth, natural texture. 

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.

calcite

Calcite

$30.00 M506c   Here is a very nice specimen of Purple Fluorite from Cave in the Park, Illinois.  This a nice quality mineral measuring 2" x 1 3/4" x 1 1/2" and has a rough, natural texture with sparkly iridescence.  The mineral has a deep Purple color with an interesting vein of Gold Pyrite running through the middle of the specimen. 

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.

mineral

Fluorite

$75.00 M502b  Here is a larger Almandine Garnet from China.  It measures approximately 2 1/2" x 2 1/2" x 2 3/4" and has been polished on the natural facet edges, thus retaining the natural formation of the crystal but polished to show the true color of the mineral.  The larger sizes like this specimen are rare.  A great specimen for the collector

Almandine garnets an iron aluminum mineral and  is the most common the all the garnets. It is normally found in metamorphic rock composed of mostly mica.  Transparent crystals are used for gemstones.  Alamadine forms rounded crystals with 12 or more sides (rhombic dodecahedron) or (24 sided trapezohedron).   Larger sizes are more rare.

alamadine garnet

Almandine Garnet

$38.00 M501b  Here is something different for the mineral collector.  This is a very nice, above average quality Crystal Quartz cluster.  It measures 7" x 4 1/4" x 2 3/4" and has several larger Crystal points with very nice facets and a pretty formation.  This cluster also has several very unique, full Crystals with some in a tabular state.  A very nice Crystal cluster to add to your collection.

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. Crystals form when they undergo a process of solidification.  The end result may be a single Crystal, but generally many Crystals form simultaneously which leads to a polycrystalline solid. 

crystal quartz cluster

Quartz Crystal Cluster

$40.00 M507c  Here is a very nice, above average quality Smokey Quartz specimen.  It measures 2 3/4" x 3 1/2" x 2 1/2" and has a natural shiny appearance.  These Crystals have been irradiated which enhances the dark Brown to Black color.  An amazing work of nature.

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.

smokey quartz

Smokey Quartz

$28.00 M508c  This is an interesting piece of light Gold Calcite covered with a sprinkling of shiny, sparkly Pyrite.  It measures 2 3/4" x 2 3/8" x 2 1/4" with a very nice cubical appearance.  This material is from Morocco.

Another photo.

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.

mineral

Calcite-Pyrite

$120.00 M509b    Here is a very, large specimen of a Quartz Crystal cluster from China.  It measures 7 1/4" x 6 3/4" x 2 1/2" and has a natural shine.  This specimen has a natural Citrine color and rests on a wooden base.  This very beautiful Crystal cluster has a floral-like patterns with numerous, various sized Crystals with many complete points, but close observation will reveal some breakage with some of the smaller Crystals.

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. Crystals form when they undergo a process of solidification.  The end result may be a single Crystal, but generally many Crystals form simultaneously which leads to a polycrystalline solid. 

crystal

 Quartz Crystal

$25.00 M514c   This is an interesting, very nice quality Zeolite mineral!  Here is a super sparkly Apophyllite specimen. This fantastic mineral measures 4 3/4" x 3 1/4" x 2" and has a snow-like appearance.  A great way to begin your mineral collection !  This material is from Mumbai, India.

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.

apophyllite

Apophyllite

$12.00

M503b  Here is a very nice soft Rust colored Mimetite mineral.  The mineral measures 2 1/2" x 1 1/2" x 1" and has a sparkly, shiny appearance.  It has some very unique Mimetite Crystals resting on matrix.  Definitely something different to start a mineral collection.

Mimetite is an Arsenic mineral often associated with Lead, Galena, Vanadinite, Wulfenite, Calcite and Arsenopyrite.  It resembles Pyromorphite as it falls in the same series of minerals as Pyromorphite and Vanadinite.  Mimetite is known as a collector's specimen often creating botryoidal crusts on the the surface of the specimen.  It is not used as a gemstone due to its softness.

mimetite

Mimetite

$20.00 M511b  Here is a very nice, but different mineral for the mineral collector.  This is a mixed mineral specimen of Conichalcite and Limonite that measures 2 1/4" x 2" x 1 1/4"and has a bright Green color.  The Conichalcite rests in a bed of Rusty Limonite and has several White to Clear Calcite Crystals resting in the mineral. 

Conichalcite is known for a sparkling green color that is hard to mistake for any other mineral.  It is often encrusted onto Limonite producing a very colorful specimen.  It is associated with Limonite, Malachite, Adamite, Olivenite and Smithsonite.

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.

conichalcite

Conichalcite-Limonite
 

$35.00 M517c  Here is 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 4 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.

copper

Copper
 

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