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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.

This specimen is remarkable for its relatively sharp and bladed marcasite crystal form.  It is in excellent condition.  

Name: Goethite After Marcasite Pseudomorph
Specimen Size:  Miniature-Sized Specimen
Dimensions:  36x33x27 mm / 1.4x1.3x1.1 inches
Weight: 42 grams / 1.5 ounces 
Origin: White Desert, Farafra Oasis, Egypt

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 Slice  
Specimen Size:  Cabinet-Sized  
Dimensions: 62x44x12 mm / 2.4x1.7x0.5 Inches  
Weight:  58.6 Grams / 2.1 Ounces  
Details: Volcanic activity Mortlake, Victoria, Australia  

Product Type: Tourmaline
Approx Weight (per piece):  1.4ct
Size: 7.5x4.3mm
Shape: Baguette Cut
Color: Neon Blue
Clarity:  VSI (Very Slightly Included)
Origin:  Africa

Product Type: Tourmaline
Approx Weight (per piece): 1.3ct 
Size: 12.5x3.5mm 
Shape: Baguette Cut
Color: Green Blue 
Clarity:  Clean
Origin:  Africa

Here we have for you a nice looking end cut of a Sahara Desert NWA unclassified meteorite weighing 55.8 grams. Its dimensions are 47x33x29 mm. This never classified Northwest Africa stone was found in the Sahara Desert around 2000.

It's a good quality cut NWA meteorite specimen showing interesting internal structure (L5?) and attractive mottled interior with chondrules and metallic flakes. Some weathering shows the meteorite's time spent aging in the desert. 

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

Peruvian pyrite is famous worldwide for its well-formed, highly lustrous crystals. The country is one of the top sources for high-quality pyrite specimens, particularly from the Huanzala Mine in the Áncash Region and the Quiruvilca Mine in La Libertad. These locations produce stunning pyritohedral crystals, often found in association with quartz, sphalerite, and galena.   The entire top of the specimen is covered with many sharp brassy pyrite crystals with some smaller white quartz crystals.

The term “pyritohedral” refers to a specific crystal habit that pyrite (and occasionally other minerals) can form. In this structure, the crystal takes on a polyhedral shape with 12 faces. However, unlike a perfectly symmetrical shape with identical pentagonal faces, natural pyritohedral crystals often exhibit slight irregularities or distortions in their faces.

Pyrite is known as a stone of protection, abundance, and confidence.  It is believed to shield against negative energy and promote mental clarity and willpower. 

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

Name: Pyrite Cluster 
Specimen Size:  Cabinet-Sized
Dimensions: 75x55x44 mm / 3.0x2.1x1.7 inches 
Weight: 267 Grams / 9.4 oz 
Origin: Mined in Quiruvilca Mine, Quiruvilca District, Santiago de Chuco Province, La Libertad, Peru

Cubic and crystallized pyrite matrix with some calcite zones. This top Peruvian specimen, in a spectacular sculpted shape, is in very good condition. Would be a beautiful addition to any new or existing collection.

Name: Pyrite with Calcite Crystal Cluster
Specimen Size:  Cabinet-Sized
Dimensions:  93x65x48 mm / 3.7x2.5x1.9 inches
Weight: 366 Grams / 12.9 oz
Origin: Mined in Peru

Sulfohalite is a rare sodium sulfate mineral containing chlorine, fluorine, sulfur, and sodium, and is highly sought after by mineral collectors at Searles Lake, California. It is known for forming small, often transparent to translucent, yellow-green octahedral or dodecahedral crystals, often appearing as two pyramids stacked base-to-base. 

Searles Lake, located east of Trona in San Bernardino County, California, is the type locality for sulfohalite, where it was first described by Hidden and MacKintosh in 1888. It is found within the evaporite sediments of the Searles Lake basin.  While sometimes found in abundance, it can be rare and hard to find in other years, making it a prized specimen during collection events. Usually colorless, gray, or greenish-yellow, often with a greenish-brown tint.  Typically occurs as yellow-greenish octahedral crystals.  Crystals are generally small (thumbnail or micro size). 

Name: Sulfohalite Crystal
Specimen Size:  Thumbnail-Sized
Dimensions: 34x34x35 mm / 1.3x1.3x1.4 inches  (incl box) 
Weight: 10.7 Grams / 0.4 ounces (incl box) 
Origin: Searls Lake, Trona, California

This is a rare and fantastic 41.8 gram Libyan Desert Glass from Kuffra, Libya, with dimensions of 44x38x24 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.  Characterized by its yellow to greenish-yellow color, it lacks the aerodynamic shapes of tektites and often appears as irregularly shaped pieces. It is almost pure silica (around 98%) with very few impurities. Throughout history, it has been regarded as a mystical and powerful material, sometimes used in talismans and amulets.

This piece displays extremely well and is a quality translucent specimen. It has an aesthetic shape with a beautiful wind eroded body from the years spent in the Desert. Would be a beautiful addition to any new or existing collection. Comes with a Canagem Collection specimen card.

This is a 45.4 gram lot of beautiful tumbled Lapis Lazuli from Afghanistan.  There are 5 pieces that range in size from approximately 21-33x12-19 mm.  This is the exact lot that you will receive.

Lapis lazuli is a vivid blue metamorphic rock and a gemstone that has been prized for its intense color and historical significance for thousands of years.  It's composed of lazurite (for the blue color), calcite, sodalite, and pyrite. It is the presence of pyrite that causes the gold-colored flecks or veins in the stone.  It has a moderate hardness, typically ranging from 5 to 5.5 on the Mohs scale.  High-quality lapis lazuli has been historically sourced from mines in Afghanistan; however, other deposits are found in countries such as Russia, Chile, Italy, and the United States.

Lapis lazuli is believed to promote self-awareness and mental clarity.