Minerals

This is a fabulous specimen of Black kyanite and quartz mined in Marilac, Safira pegmatite district, Eastern Brazilian pegmatite province, Minas Gerais, Brazil.  The specimen will sit perfectly flat to allow easy display in a favorable position.

Kyanite is a silicate mineral and is known to be one of the most attractive natural minerals in the world, frequently found with lustrous bladed crystals, with the intensity of color varying by location of extraction. Kyanite regularly forms fibrous, radiating crystals, as well as flattened and tabular. Some crystals form with white striations, color bands, and even multi-colored crystals, though typically found with a deep blue streak running down the middle.

Name: Kyanite and Quartz Crystal
Specimen Size:  Cabinet-Sized
Dimensions:  92x48x25 mm / 3.6x1.9x1inches 
Weight:   104.36 grams / 3.7 Ounces 
Origin:  Safira pegmatite district, Eastern Brazilian pegmatite province, Minas Gerais, Brazil

Amphibole is a group of dark-colored, complex silicate minerals that form in a variety of geological settings.  The amphibole group includes several mineral species, such as hornblende, tremolite, actinolite, anthophyllite, and others. Each variety has its own unique chemical composition and physical properties.

Amphibole minerals can exhibit a range of colors, including dark green, black, brown, and even colorless. They often have a prismatic crystal habit, forming elongated crystals with distinct cleavage angles.  They are commonly found in igneous and metamorphic rocks. They crystallize in magma and can also form during metamorphism when pre-existing rocks are subjected to high pressure and temperature.

This top specimen is in very good condition. Would be a beautiful addition to any new or existing collection.

Name: Amphibole on Matrix Crystal 
Specimen Size:   Miniature-Sized
Dimensions:   52x49x35 mm / 2x1.9x1.4 inches / Crystal is 11 mm
Weight: 63.44 Grams / 2.2 oz
Origin: Mined in Czech Republic

This is a large sparkly cluster of beautiful multi-colored bladed barite and some Cerussite crystals.  Barite crystal formations grow in parallel sheets that almost appear fibrous. It is well-known for its great range of colors and varied crystal forms and habits. Cerussite is commonly known as white lead and is an important ore mineral.  It consists of lead carbonate which crystallizes in the orthorhombic system.  Its color will vary depending on the composition and structure, with colorless, white, grey and green tinted, being the most common colors of crystals found.

Name: Barite, Cerussite Crystal Cluster
Specimen Size:  Miniature-Sized
Dimensions:  53x38x33 mm / 2.1x1.5x1.3 inches
Weight:  96.8 Grams / 3.4 Ounces
Origin: Mined in Mibladen Mining District, Midelt, Khenifra Province, Morocco

Deep purple is the most famous color of Fluorite, but it can also be sky blue, sea green, sunny yellow, and crystal clear. There are rarer colors of pink, reddish orange (rose) and even black. Fluorite is very attractive and in demand. It is easy to see why fluorite earns the reputation as "The Most Colorful Mineral in the World".

Because Fluorite comes in a wide range of colours, it is often said that it contains something of all other gemstones in it.  According to folklore, it is the home of rainbows.

Fluorite is said to increase concentration and foster mental balance.  Nicknamed the "genius stone" fluorite is believed to be excellent for study and work areas.  It helps the mind stay focused on the task at hand.

Name: Fluorite on Calcite
Specimen Size:   Cabinet-Sized
Dimensions: 86x65x75 mm / 3.4x2.6x2.9 inches
Weight: 364 Grams / 12.8 Ounces
Origin: Hercules Mine, Coahuila, Mexico

Name: Star Mica - Muscovite with Quartz

Specimen Size:  Miniature-Sized

Dimensions:  49x39x27 mm / 1.9x1.5x1 inches

Weight:  38.1 Grams / 1.3 ounces

Origin: Mined in Minas Gerais, Brazil

This is a specimen of Star Mica or Muscovite and Quartz cluster.  These clusters show crystals that grow in sheets or book formations.  It is silvery gold with good transparency when held up to the light.  The name Muscovite comes from the term Muscovy Glass which was a name for the thick sheets of Mica used as a substitute for glass Russia. The name Mica is derived from the Greek word that means to split.

On this nice specimen, the matrix faces are covered with beautiful golden yellow point stars of muscovite mica, a typical shape for this rare mica formation. The stars are the result of twinning; the points show a bit of wear but this does not detract from the beauty of such a piece.

Mesolite is a fragile member of the zeolite group and forms almost exclusively in delicate, needle-like crystal habits. Prehnite can form prismatic, tabular, or pyramidal crystals, but usually occurs in botryoidal, reniform, stalactitic, granular, or compact habits. 

It is usually green in colour, but may be white, colourless, yellow, or gray.  Prehnite is transparent to translucent, with a vitreous to pearly luster.  Prehnite forms in cavities in basaltic lavas.

Name: Mesolite Flowers on Quartz and Prehnite in Geode
Specimen Size:  Large Cabinet-Sized
Dimensions: 82x76x76 mm / 3.25x3x3 inches
Weight: 519 Grams / 1 Lbs 2 Ounces
Origin: Mined in Dindoshi, India

Cave calcite is not actually calcite, but aragonite which forms within caves, mines and moist areas that are rich in limestone. Formations occur as stalactites and stalagmites, typically as botryoidal or feathery branches.

Cave calcite appears in many colors ranging from clear, to milky white, and rusty oranges. These colors, in addition to their funky, tree-like formations, make cave calcite an exciting addition to any collection. The specimen is in good condition.

Product Name: Aragonite - Cave Calcite
Specimen Size:  Cabinet-Sized
Dimensions:   60x42x46 / 2.4x1.6x1.8 inches
Weight:   111.8 grams / 3.9 Ounces)
Origin: Arizona, USA

This is a stunning specimen of calcite cubes on mordenite druse.  The crystals are well defined and look beautiful together.

Calcite is found throughout the world in sedimentary, metamorphic, and igneous rocks. Some geologists consider it to be a "ubiquitous mineral" - one that is found everywhere. Calcite is the principal constituent of limestone and marble. 

Mordenite was first described in 1864 by Henry How. He named it after the small community of Morden, Nova Scotia, Canada, along the Bay of Fundy, where it was first found.  It is one of the most abundant zeolites and is found in volcanic rock such as rhyolite, andesite, and basalt. It is associated with other zeolites such as stilbite and heulandite.

Name: Calcite Cubes on Mordenite Druse
Specimen Size:  Large Cabinet-Sized
Dimensions: 228x152x127 mm / 9x6x5 inches
Weight: 3.43 KG / 7 lbs 9 ounces 
Details: Mined in Nashik, India

This is a beautiful combination of Apophyllite, Stilbite and Calcite on Chalcedony Druse. It is a large specimen at over 2 kg and has many double terminated crystals.

Stilbite is a zeolite mineral appreciated for its delicate crystal formations and pastel hues, ranging from colorless to white, yellow, pink, and peach.  It forms distinctive tabular crystals with a bowtie or butterfly shape and exhibits a vitreous to pearly luster. 

One of the distinguishing features of apophyllite is its ability to form well-defined crystals with a pyramid-like shape. These crystals often exhibit a prismatic or pseudo-cubic habit and have a vitreous luster. Apophyllite is transparent to translucent and is commonly found in colorless or white varieties, although it can also occur in shades of green, pink, yellow, or brown.

Chalcedony is a microcrystalline Quartz found in many different colours and patterns.  It has a number of crystals grouped under it many of which are very familiar, including Agate, Carnelian, Chrysoprase, Aventurine, Jasper and Onyx.

Calcite is found throughout the world in sedimentary, metamorphic, and igneous rocks. Some geologists consider it to be a "ubiquitous mineral" - one that is found everywhere. Calcite is the principal constituent of limestone and marble. This huge crystal specimen would be a beautiful addition to any new or existing collection.

Name: Apophyllite, Stilbite and Calcite on Chalcedony Druse
Specimen Size:  Large Cabinet-Sized
Dimensions: 222x178x95 mm / 8.75x7x3.75 inches
Weight: 2.46 KG / 5 lbs 6 ounces
Origin: Mined in Jalgaon, India

Gyrolite often forms nodular aggregates that can appear glassy, dull or even fibrous. The aggregate nodules often accompany many fine and rare minerals such as Apophyllite and Okenite plus many of the Zeolites. Looks very nice on Prehnite! Would be a beautiful addition to any new or existing collection.

Name: Gyrolite spheres with Apophyllite on Prehnite Druze
Specimen Size:  Large Cabinet-Sized
Dimensions: 171x89x70 mm / 6.75x3.5x2.75 inches
Weight: 979 Grams / 2 lbs 2 ounces
Origin: Mined in Mumbai (Bombay), India

This is a fabulous specimen of terminated Kyanite blades, Staurolite and Quartz mined in Barra do Salinas district, Barra do Salinas, Coronel Murta, Minas Gerais, Brazil.  The specimen was mounted on a wood stand to allow easy display in a favorable position and to protect the specimen.

Kyanite is a silicate mineral with the chemical formula Al2SiO5. It's known to be one of the most attractive natural minerals in the world, frequently found with lustrous blue bladed crystals, with the intensity of color varying by location of extraction. Kyanite regularly forms fibrous, radiating crystals, as well as flattened and tabular. Some crystals form with white striations, color bands, and even multi-colored crystals, though typically found with a deep blue streak running down the middle.

Name: Bladed Kyanite, Staurolite and Quartz Crystal
Specimen Size:  Large Cabinet-Sized
Dimensions:  103x35x52 mm / 4.0x1.4x2.0 inches (including stand)
Weight:   173 grams / 6.1 Ounces (including stand)
Origin:  Barra do Salinas district, Barra do Salinas, Coronel Murta, Minas Gerais, Brazil

This is a fabulous specimen of bladed Kyanite and Quartz mined in Barra do Salinas district, Barra do Salinas, Coronel Murta, Minas Gerais, Brazil.  The specimen was mounted on a wood stand to allow easy display in a favorable position and to protect the specimen.

Kyanite is a silicate mineral with the chemical formula Al2SiO5. It's known to be one of the most attractive natural minerals in the world, frequently found with lustrous blue bladed crystals, with the intensity of color varying by location of extraction. Kyanite regularly forms fibrous, radiating crystals, as well as flattened and tabular. Some crystals form with white striations, color bands, and even multi-colored crystals, though typically found with a deep blue streak running down the middle.

Name: Bladed Kyanite and Quartz Crystal
Specimen Size: Large Cabinet-Sized
Dimensions:  104x96x46 mm / 4.1x3.8x1.8 inches (including stand)
Weight:   271 grams / 1.4 Ounces (including stand)
Origin:  Barra do Salinas district, Barra do Salinas, Coronel Murta, Minas Gerais, Brazil