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Cost
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Item
Description
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Click Picture
for Larger Image
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$65.00 |
M300c This is a nice
quality and beautiful specimen of Malachite from Zimbabwe,
Africa. It has a good mix of the different green Malachite colors
throughout. The lovely specimen measures
4 7/8" x 4 5/8" x 2 5/8" thick and is in it's natural
unpolished form. A great addition for any collection. Another photo
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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.
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Malachite
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$24.00 |
M301c
Here is an awesome quality larger specimen
of Pink Halite Crystals in a large cluster. It
measures 5" x 3 3/8" x 2 3/8" with a natural appearance
and many differently sized isometric Pink and lighter Pink Crystals. A different
mineral for the different collector. This material is from
California.
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Halite, commonly known as rock salt, commonly found and well known
mineral, the mineral form of sodium chloride. Halite forms isometric
crystals. The mineral is typically colorless or white, but may also be
light blue, dark blue, purple, pink, red, orange, yellow or gray depending
on the amount and type of impurities. It can be found in salt lakes
and oceans in a dissolved solution or as a solid mass in various locations
formed via various processes. It commonly occurs with other
evaporite deposit minerals such as several of the sulfates, halides, and
borates. Pink halite is regarded as a crystal of personal power and
healing.
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Pink Halite
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$8.00 |
M302c Here
is something different for the mineral collector. This is an Apache Tear
or Obsidian specimen in Perlite matrix from Arizona. The Apache Tear
measures approximately 5/8" x 3/4"in the matrix that is 2" x 1 5/8" x
1". The Apache Tear has has a vivid Black color contrasting with the gray
Perlite. This material has a unique shape
and lots of character.
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Obsidian is a type of naturally-occurring glass formed as an
extrusive igneous rock. It is produced when felsic lava erupted from a
volcano, cools rapidly through the glass transition temperature and
freezes without sufficient time for Crystal growth. Because of the lack of
Crystal structure, Obsidian blade edges can reach almost molecular
thinness, leading to its ancient use of projectile points (arrow heads),
and its modern use as surgical scalpel blades.
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Apache Tear
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$160.00 |
M303b This is a
lovely specimen of Purple or Grape Chalcedony from the Mamuju area of Sulawesi Barat
Province of Indonesia. The bubbly or botryoidal cluster of tiny purple grapes is also known as
Manakarra Stone or Grape Agate. It has numerous pretty purple colored "grapes" with lighter
ones in different areas and is all natural. The exceptionaly beautiful Grape
Chalcedony measures 6" x 4 1/8" x 2 3/4". Simply
amazing!
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Chalcedony is a cryptocrystalline form of silica, composed of very fine
intergrowths of the minerals quartz and moganite. Chalcedony has a waxy
luster, and may be semitransparent or translucent. It can assume a wide
range of colors, but those most commonly seen are white to gray,
grayish-blue or a shade of brown ranging from pale to nearly black. |
Grape Chalcedony
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$60.00 |
M304b
Here is something different for the mineral collector. This
is a very nice, bright Yellow Pyrite with some what appears to be Galena
mixed with creamy colored crystals all on matrix. It measures 3 7/8" x 3" x 1
3/4" and does not have any polish.
A really neat, unique mineral to add to your collection.
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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
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$15.00 |
M305b
Here is a nice, above average quality, Sand Selenite Rose from
Morocco. This unique specimen measures approximately 4 1/2" x 3 1/2" x 2
7/8" and has a soft Grey color on the multitude of different sized
"petals". This is an interesting mineral that would make a nice addition to your
collection.
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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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$15.00 |
M306b
This is an interesting Yellow Barite specimen from Mexico. These nice
light Honey Golden colored Barite with some lovely "rainbow" reflections as it's rotated in the
light. The entire specimen
measures 1 3/4" x 1 1/8" x 5/8" and has a nice unique appearance.
It may be small but it's packed with beauty.
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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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Yellow Barite
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$20.00 |
M307c
This is an interesting mineral specimen! A gorgeous Apophyllite with
crystal clusters radiating in all different directions. It
has a super natural appearance with beautiful clear Apophyllite crystals and is from Jaglon, India. This
very cool mineral measures 4 3/4" x 1 3/8" x 3". A great way to begin your mineral collection
with a super mineral! Another
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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 |
M308c
Here is a gorgeous Fluorite specimen.
It measures 3 3/8" x 2 5/8" x 1 1/2" and has
lots of sparkle. The all natural specimen has a nice arrangement in an unusual design
with lots of character. Grab this one quick as it's sure not to last long!
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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. |
Fluorite
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$16.00 |
M309c This is something
different for any collector. Here is a very nice, very pretty
Selenite Crystal from Mexico. This Selenite is also known as
Fishtail or Angel's Wing Selenite. It measures 4 1/8" x 3" x
1 3/4" thick and has a natural shiny appearance. A great
conversation piece.
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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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$50.00 |
M310b
This is and exceptional larger specimen of Apophyllite and Stilbite in matrix
from India. This lovely specimen measures 8 3/8" x 6 1/4" x 3 5/8". A one of a kind gift for that
one of a kind person.
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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.
Stilbite is another Silicate mineral from the Zeolite family.
It is often characterized by its sheaf like aggregates. The color is
usually white or pink and when the cleavage is perfect, will have a
distinct pearly luster.
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Apophyllite - Stilbite Specimen
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$125.00 |
M311c
This is a very nice Epidote specimen from Peru. This amazing
Epidote cluster has very well defined dark green columnar prism crystals
of different sizes, all going different directions from the unidentified
tan colored matrix. The entire lovely specimen measures 6 3/4"
x 4 1/8" x 2 1/4" and has a nice natural sparkly appearance. A great way to begin your mineral collection!! Another
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Epidote is an abundant rock-forming mineral, but one of the
secondary origin. Many of the characters of the mineral vary with the
amount of iron present. Prismatic, columnar crystals, often shiny, finely
striated faces. The color is green, gray, brown or nearly black but
usually a characteristic shade of yellowish-green or pistachio green.
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Epidote
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$20.00 |
M312b Here's a stunning
item, a gorgeous Crystal Quartz Cluster. It measures 4 7/8" x 2
5/8" x 1 1/2" and has a natural finish giving it a truly unique appearance. It has several crystals in
various sizes pointing in all direction giving it a spectacular design!
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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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Crystal Quartz Cluster
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$150.00 |
M313b This is a splendid Spanish
Pyrite specimen from the Navajun Mine, Piritas De Navajus S.L., Spain.
This very interesting specimen has 2 large excellent quality Pyrite cubes
in matrix as well as 2 more small cubes. The largest shiny Pyrite
cube measures approximately 1 1/8" x 1" x 1". The other small
cubes being 1/4" square. The entire specimen measures 3 5/8" x 2
5/8" x 3 1/8" overall and weighs nearly 1 3/4 pounds. Very, very cool!!
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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
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$30.00 |
M314c This is a very pretty
Smokey Quartz Crystal Cluster from France. It measures 3 1/2" x 3 1/2" x
1 1/2" and has not been polished. A great addition to any collection and
is a true beauty. 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 Smokey Quartz, Chalcedony, Amethyst, Citrine, and Carnelian which are results of
mineral impurities or heat treatments.
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Smokey Quartz Crystal
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$80.00 |
M315b Here is a new item; a
very nice, beautiful quality Sphalerite Matrix specimen. Close
inspection shows how it grew in layers which resembles Rose Petal
formations with lots of Gold sparkle. The lovely Matrix measures
4 3/4" x 3 5/8" x 1 3/8. Very
different and very nice!
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Sphalerite is a mineral that is the chief ore of Zinc. It consists
mainly of Zinc Sulfide in crystalline form but almost always contains
valuable Iron. When the Iron content is high, it is an opaque black
variety called Marmatite. It is usually found in association with Galena,
Pyrite, Calcite, Dolomite and Fluorite. It is usually yellow, brown or
gray to gray-black in color and may have a shiny or dull luster or sheen.
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Sphalerite Matrix |
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$55.00 |
M316b Here's a new item, a
very cool specimen of Marcasite. This interesting
piece measures 4 3/4" x 2 1/4" x 3/8". This pretty specimen
has great color and neat structure. This would be a wonderful addition to
any collection.
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The mineral marcasite, sometimes called “white iron pyrite”, is
iron sulfide with orthorhombic crystal structure. It is physically and
crystallographically distinct from pyrite, which is iron sulfide with
cubic crystal structure. Both structures do have in common that they
contain the disulfide having a short bonding distance between the sulfur
atoms. Marcasite is lighter and more brittle than pyrite. Specimens of
marcasite often crumble and break up due to the unstable crystal
structure. |
Marcasite
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$35.00 |
M317b
This is a very nice quality and beautiful specimen of
Druzy Quartz on matrix from an unidentified location in Mexico. This
lovely specimen has an interesting druzy and
bubbly texture in most of the two cavities of the matrix rock, likely
Limonite . The unique specimen measures almost 5 5/8" x 4 1/8" x
1 5/8" thick. A great addition for any collection.
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view
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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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Druzy Quartz
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$300.00 |
M318c Here's
a fabulous new item, an exceptional piece of Vivianite. It has
spectacular green and indigo blue colored crystals protruding from the
earth colored matrix. At first glance the crystals seem almost black but
hold up to bright light and prepare to be amazed. It's quite difficult to
capture it's brilliance in a photo and the picture don't do this piece
justice. The excellent piece
measures 6 3/8" x 3 1/2" x 2". A very nice specimen that makes a
unique display item.
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Vivianite is a hydrated iron phosphate mineral found in a number of
geological environments. Small amounts of manganese, magnesium and calcium
may substitute for iron in the structure. Colorless, very pale green,
becoming dark blue, dark greenish blue, indigo-blue, then black with
oxidation.
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Vivianite
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$50.00 |
M319b
This is a terrific example of Tourmaline with Albite specimen from Brazil.
It has dark
green Tourmaline columnar prisms embedded and protruding from them with unmatched character
contrasted by the white Albite. The
excellent piece measures 4" x 2 3/4" x 3 1/4" tall and
is unaltered from nature in any way. A very nice specimen that
makes a unique display item.
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Tourmaline is one of the most chemically complicated of all
Silicate minerals. It is a complex Silicate of Aluminum and Boron and the
composition varies widely with Sodium, Calcium, Iron, Magnesium, Lithium
and many other elements that enter into it's structure. It can occur in a
long, slender needle-like crystal to a thick prismatic and columnar
crystal to a radial like daisy formation. It comes in many colors usually
black and brown (iron rich); brown and yellow (magnesium rich); and blue,
red, green, yellow, and pink (lithium rich). This mineral is found in
igneous rocks, like Granite Pegmatite, and metamorphic rocks such as
Schist and Marble.
Albite is a common feldspar mineral and a sodium aluminosilicate
that occurs most widely in pegmatites and felsic igneous rock such as
granite. It also may be found in low-grade metamorphic rocks. Albite
usually forms brittle, glassy crystals that may be colorless, white,
yellow, green pink or black.
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Tourmaline - Albite
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$45.00 |
M320c Here
is a fabulous new item, a great piece of Covellite. This exquisite
specimen measures 5 7/8" x 3" x 3 1/8". A very nice unique specimen that makes
a fabulous display item.
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Covellite (also known as covelline) is a rare copper sulfide
mineral with the formula CuS. This indigo blue mineral is commonly a
secondary mineral in limited abundance and although it is not an important
ore of copper itself, it is well known to mineral collectors.
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Covellite
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$26.00 |
M321b
Here's a neat new item, a Deming Agate from New Mexico.
This neat specimen
measures 4 1/8" x 3 1/8" x 4 1/8". It has been cut and the
front face polished in our very own Lapidary Department. It has a pretty banding,
crystal cavity that goes clear through and a great design!
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Agates mostly occur as nodules in volcanic rocks or waters containing
silica in solution 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.
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Deming Agate
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