Up to $50

Pseudomorphs are mineral specimens that have the external shape of one mineral but are composed of another.  The pseudomorph goethite after marcasite forms when marcasite is exposed to oxidizing conditions and starts to oxidize and break down. As the marcasite breaks down, goethite replaces it in the crystal structure, preserving the shape of the original marcasite crystal. The resulting specimen appears as a marcasite crystal, but is actually composed of goethite.

The Farafra Oasis, in the White Desert, has been known for a number of years to deliver incredible pseudomorph specimens. The pseudomorphs occur within the Cretaceous Khoman Chalk, from which the White Desert derives its name.

These specimens are remarkable for their relatively sharp marcasite crystal forms in aesthetic crystal clusters. They are in excellent condition.  This collector's specimen is unique, of great quality and ready for display.

Name: Goethite After Marcasite Pseudomorph
Specimen Size:  Miniature-Sized Specimen
Dimensions:  34x30x33  mm / 1.3x1.2x1.3 inches
Weight: 38 grams / 1.3 ounces
Origin: White Desert, Farafra Oasis, Egypt

Lapis lazuli or lapis for short, is a deep-blue metamorphic rock used as a semi-precious gemstone that has been prized since antiquity for its intense color.  This specimen shows deep blue with sparks of pyrite and is in great condition.

Product Type: Lapis Lazuli Rough
Specimen Size: Miniature-Sized
Dimensions:  51x51x26 mm / 2.0x2.0x1.0 inches
Weight: 83.7 Grams / 2.9 ounces
Origin: Afghanistan

This is an attractive specimen of calcite crystals from the Wessels Mine, Kuruman, South Africa.  The entire top surface of the specimen is covered with many sharp well formed calcite crystals. Some are a frosted snow white ball shape which sit amongst a sharper sparkly druzy calcite. It is in excellent condition.

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.

Name: Calcite Crystal
Specimen Size:  Cabinet-Sized
Dimensions:  61x50x35 mm/ 2.4x2.0x1.4 inches 
Weight: 96.82 Grams / 3.4 Ounces 
Origin: Mined in Wessels Mine, Kuruman, South Africa 

This is a rare and fantastic 8 gram Libyan Desert Glass from Kuffra, Libya, with dimensions of 32x22x15 mm. 

Although its exact origin is still debated, the leading theory suggests it was formed by a high-energy event, such as a meteoric impact or airburst, that melted the desert sand directly where it lay, without being ejected into the atmosphere and re-entering. This results in different physical characteristics compared to tektites​. Libyan Desert Glass is found specifically in the Great Sand Sea of the Eastern Sahara, within a more localized area spanning parts of western Egypt and eastern Libya.

Iceland spar, formerly called Iceland crystal (Icelandic: silfurberg [ˈsɪlvʏrˌpɛrk], lit. 'silver-rock') and also called optical calcite, is a transparent variety of calcite, or crystallized calcium carbonate, originally brought from Iceland, and used in demonstrating the polarization of light.  

The most common crystal structure of Iceland spar is rhombohedral, but other structures, such as scalenohedral or prismatic, can form depending on formation conditions. Iceland spar is primarily found in Iceland but can occur in different parts of the world with suitable geological conditions such as China.

Name: Iceland Spar Optical Calcite
Specimen Size:  Miniature-Sized
Dimensions: 30x27x25 mm / 1.2x1.1x1.0 inches 
Weight: 60.8 Grams / 2.1 Ounces
Origin: Guangxi Province, China

Brazilianite forms beautiful crystals and it can be quite striking. This bright yellow green single terminated crystal would be a great addition to any new or existing collection.

Name:  Brazilianite
Specimen Size:  Thumbnail-Sized  
Dimensions:   Specimen & Box 33x33 mm / 1.3x1.3 inches  
Weight:  11.5 Grams / 0.4 Ounces (including box)  
Origin: Mined in Córrego Frio mine, Linópolis, Divino das Laranjeiras, Minas Gerais, Brazil

This is a beautiful, fully terminated thumbnail sized Quartz Point. 

Quartz crystals are among the most abundant and well-known minerals on Earth. Quartz belongs to the hexagonal crystal system. It typically forms six-sided prismatic crystals with a pointed termination. Its crystals can be colorless or exhibit a wide range of colors. The color variations are often due to the presence of impurities or trace elements during the crystal's formation. Quartz is transparent to translucent. 

This specimen would be a beautiful addition to any new or existing collection.

Name: Quartz Point
Specimen Size:  Thumbnail-Sized
Dimensions:  Specimen 26x8x8 mm / 1.0x0.3x0.3 inches
                      Specimen Box 33x33 mm / 1.3x1.3 inches  
Weight:  11.2 Grams / 0.4 Ounces (including box)  
Origin:  Bennet Quarry, Buckfield, Maine

This is a very fine and lustrous Stilbite from Parsboro, Cape d'Or, Nova Scotia, Canada. It was collected in 2002 and is a group of well terminated crystals with nice sharp edges.  

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. Commonly found in cavities in volcanic rocks, stilbite is often associated with other zeolite minerals. It is valued for its aesthetic appeal and is believed by some to have calming energy, supporting spiritual growth and emotional healing.

This is a pale green crust of hidalgoite on matrix.  It was named after the place where it was first discovered, the Zimapán mining district, Hidalgo, Mexico. 

Name: Hidalgoite
Specimen Size:  Miniature-Sized
Dimensions:    57x35x41 mm / 2.2x1.4x1.6 inches
Weight:  41.8 Grams / 1.5 ounces
Origin: Mined in Gold Hill Mine, Gold Hill, Gold Hill Mining District (Clifton Mining District), Tooele County, Utah, USA

Here we have for you a large 37.3 grams superbly shaped Indochinite Tektite from Maoming City, Guangdong Province, China. Although not a meteorite, tektite is directly linked to them or their impacts, just consider its age of around 780,000 years old.

Tektite can still be interesting because of the persistent mystery has that resisted clear explanations of their creation for generations of geologists. Dimensions are 60x22x21 mm. 

This piece displays very well and is a very nice size showing multiple characteristics of its origin.  Would be a beautiful addition to any new or existing collection. Comes with a Canagem Collection specimen card.

Here we have for you a large 51 grams superbly shaped Indochinite Tektite from Maoming City, Guangdong Province, China. Although not a meteorite, tektite is directly linked to them or their impacts, just consider its age of around 780,000 years old.

Tektite can still be interesting because of the persistent mystery has that resisted clear explanations of their creation for generations of geologists. Dimensions are 47x38x32 mm. 

This piece displays very well and is a very nice size showing multiple characteristics of its origin.  Would be a beautiful addition to any new or existing collection. Comes with a Canagem Collection specimen card.

Quartz crystals are among the most abundant and well-known minerals on Earth. It belongs to the hexagonal crystal system, and typically forms six-sided prismatic crystals with a pointed termination. Its crystals can be colorless or exhibit a wide range of colors. The color variations are often due to the presence of impurities or trace elements during the crystal's formation. Quartz is transparent to translucent. 

This is a very nice specimen of clear quartz crystals form Fisher Mountain, near Mount Ida. This beautiful crystal has excellent clarity, and the tip is in perfect condition.

Name: Quartz
Specimen Size:  Miniature-Sized
Dimensions: 40x18x15 mm / 1.6x0.7x0.6 inches
Weight: 11.14 Grams / .04 Ounces 
Origin:  Fisher Mountain, near Mount Ida, Arkansas, USA

An olivine volcanic bomb is a type of volcanic rock that contains olivine crystals and has been ejected during a volcanic eruption. Olivine is a mineral that is commonly found in the Earth's mantle and is one of the first minerals to crystallize as magma cools.

Volcanic bombs are large clots of lava that are ejected from a volcano during an explosive eruption. They can vary in size, and their shapes are often streamlined due to their molten nature as they are thrown through the air. When these volcanic bombs contain olivine crystals, they are referred to as olivine volcanic bombs.

This beautiful slice is completely surrounded by a lava crust and has been polished on both sides. 

Would be a beautiful addition to any new or existing collection. Comes with a Canagem Collection specimen card.

Name: Olivine Volcanic Bomb
Specimen Size:  Cabinet-Sized  
Dimensions: 68x46x22 mm / 2.7x1.8x0.9 Inches  
Weight:  70 Grams / 2.5 Ounces  
Details: Volcanic activity Mortlake, Victoria, Australia  

Lapis lazuli or lapis for short, is a deep-blue metamorphic rock used as a semi-precious gemstone that has been prized since antiquity for its intense color.  This specimen shows deep blue with sparks of pyrite and is in great condition.

Product Type: Lapis Lazuli Rough
Specimen Size: Cabinet-Sized
Dimensions:  73x37x31 mm / 2.9x1.5x1.2 inches
Weight: 111.6 Grams / 3.9 ounces
Origin: Afghanistan

Choose your Libyan Desert Glass!  You will receive the exact piece you choose.  This size of Libyan Desert Glass is great for jewelry making and a variety other small projects.  They would also be a beautiful addition to any new or existing collection . 

These rare and fantastic Libyan Desert Glass were found in a strewn field in the Western Desert of Egypt. The weight and dimensions of each piece are provided below. 

The impact origin of Libyan Desert Glass is still disputed by some scientists and the exact impact site has not been located, although there is clear evidence that an impact has happened. The glass was discovered during an expedition of an international scientific community in 1932; and in 2013, a published analysis of a small black rock proposed that this sample was the remnant of a cometary impact.

The major component of Libyan Desert Glass is almost pure molten silica glass. Proof exists that Libyan Desert Glass had been used as a gemstone in the making of jewellery by the Pharaohs in ancient Egypt. 

These pieces display extremely well and are quality translucent specimen. They have an aesthetic shape with a beautiful wind eroded bodies from the years spent in the Desert. Comes with a Canagem Collection specimen card.  The weight and dimensions of each piece are as follows:

A - 3.9 gr / 20x15x11 mm
B - 3.0 gr / 25x17x7 mm
C - 2.8 gr / 24x16x9 mm
D - 2.6 gr / 26x14x8 mm
E  - 3.0 gr / 21x21x9 mm

Pseudomorphs are mineral specimens that have the external shape of one mineral but are composed of another.  The pseudomorph goethite after marcasite forms when marcasite is exposed to oxidizing conditions and starts to oxidize and break down. As the marcasite breaks down, goethite replaces it in the crystal structure, preserving the shape of the original marcasite crystal. The resulting specimen appears as a marcasite crystal, but is actually composed of goethite.

The Farafra Oasis, in the White Desert, has been known for a number of years to deliver incredible pseudomorph specimens. The pseudomorphs occur within the Cretaceous Khoman Chalk, from which the White Desert derives its name.

These specimens are remarkable for their relatively sharp marcasite crystal forms in aesthetic crystal clusters. They are in excellent condition.  This collector's specimen is unique, of great quality and ready for display.

Name: Goethite After Marcasite Pseudomorph
Specimen Size:  Miniature-Sized Specimen
Dimensions:  43x28x21  mm / 1.7x1.1x0.8 inches
Weight: 37.6 grams / 1.3 ounces
Origin: Found in White Desert, Farafra Oasis, Egypt