Crystals & Minerals

You will receive one of the Pseudomorphs pictured.

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:  23-28x20-23  mm / 0.9-1.1x0.8-0.9 inches
Weight:  17-23 grams / 0.6-0.8 ounces
Origin: Found in White Desert, Farafra Oasis, Egypt

This is a beautiful specimen of golden brown Vesuvianite crystals on a white carbonate matrix from Mexico. A great addition to any collection! It was first discovered on Mount Vesuvius in Italy in the 18th century, hence its name.

Vesuvianite typically occurs as a green, brown, yellow, or blue-green crystal, and is often found in metamorphic and igneous rocks. The alternate name, Idocrase, is from the Greek eidos “form”, and krasis “mixture”, because Vesuvianite often appears to combine the crystal forms of other minerals. It is used as a gemstone.

Name: Vesuvianite Crystal
Specimen Size:   Miniature-Sized
Dimensions:  56x29x26mm / 2.2x1.1x1.0 inches
Weight:   46 grams / 1.6 Ounces
Origin: Sierra de Cruces, Coahuila, Mexico

Barite is a mineral composed of barium sulfate (BaSO4) and is known for its high density and wide range of colors and crystal formations. Barite is a type of mineral specimen that features clusters of thin, blade-like barite crystals growing on a matrix of other minerals.

This specimen was found in Campinas Grande, Pernambuco, Brazil, an area known for producing high-quality barite specimens with a range of crystal habits and colors.

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

Name: Barite Crystal on Matrix
Specimen Size:  Miniature-Sized
Dimensions:  42x44x33  mm / 1.6x1.7x1.3  inches
Weight: 37.4 Grams / 1.3 Ounces
Origin: Mined in Campinas Grande, Pernambuco, Brazil

This is an Adamite Crystals on Limonite matrix mined in Mina Ojuela, Mapimi, Durango, Mexico.  Adamite typically occur as small, brightly colored, prismatic or blocky crystals, or as crusts or aggregates. It is commonly found in association with other minerals such as limonite, calcite, and smithsonite.  Adamite colors include green, yellow, white, and reddish-brown. The green color of adamite is caused by the presence of traces of copper in its crystal structure.  One of the unique features of adamite is its strong fluorescence under ultraviolet (UV) light. It can exhibit vibrant green or yellow fluorescence.

Adamite was first discovered in 1866 in the Ojuela Mine in Durango, Mexico. It was named after French mineralogist Gilbert-Joseph Adam (1795-1881), who studied the mineralogy of the mine.

Adamite is associated with joy, creativity, and the balancing of energies. Some believe it can enhance one's ability to express themselves and promote a positive outlook.  It is highly valued by collectors for its bright colors and distinctive crystal habits and would be a great addition to any new or existing collection.

Name:  Adamite Crystals on Limonite Matrix  
Specimen Size:  Cabinet-Sized  
Dimensions:  70x25x39 mm /  2.7x1.0x1.5 inches  
Weight:  77.1 Grams / 2.7 Ounces  
Origin:  Mined in Mina Ojuela, Mapimi Durango, Mexico  

Rhodochrosite is a beautiful pink to red mineral that is typically found in veins associated with silver, copper, lead, and zinc ores. Peru is one of the most famous sources of rhodochrosite, and the country is known for producing some of the most vibrant and high-quality specimens of this mineral.

These tumbled rhodochrosite would make a beautiful addition to a mineral collection. 

Rhodochrosite is believed to have healing properties, particularly related to the heart and emotional healing. It is said to promote love, compassion, and self-awareness, and to help release emotional trauma and negative patterns. It is also thought to be a stone of creativity, helping to stimulate and enhance artistic expression.

Product Type:  Rhodocrosite
Approx Weight (per lot):  28.5-71.4 grams
Shape: Tumbled
Color: Pink
Clarity: Opaque
Origin: Peru

Rhodochrosite is a beautiful pink to red mineral that is typically found in veins associated with silver, copper, lead, and zinc ores. Peru is one of the most famous sources of rhodochrosite, and the country is known for producing some of the most vibrant and high-quality specimens of this mineral.

These tumbled rhodochrosite would make a beautiful addition to a mineral collection.  They are also perfectly sized for jewelry-making.

Rhodochrosite is believed to have healing properties, particularly related to the heart and emotional healing. It is said to promote love, compassion, and self-awareness, and to help release emotional trauma and negative patterns. It is also thought to be a stone of creativity, helping to stimulate and enhance artistic expression.

Product Type:  Rhodocrosite
Approx Weight (per lot):  6.0 - 17.7 grams
Origin: Peru

Prehnite is a green to yellowish-green colored mineral that belongs to the phyllosilicate family. It is composed of calcium, aluminum, and silicate, with traces of iron, magnesium, and other elements. Prehnite crystals have a unique pearly luster and can form in a variety of shapes, including tabular, prismatic, and stalactitic formations.

Prehnite is believed to have a calming effect on the mind and emotions, promoting relaxation and inner peace. It is also said to be a stone of unconditional love, compassion, and healing.

Name: Prehnite and Graphite Crystal Cluster
Specimen Size:   Thumbnail-Sized
Dimensions: 19-25 mm / .75 - 1.0 inches
Weight: 7.0 - 8.4 Grams / 0.2 - 0.3 Ounces
Origin: Mined in Merelani Hills, Arusha, Tanzania

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:  32x31x26  mm / 1.3x1.2x1.0 inches
Weight: 29 grams / 1 ounces
Origin: Found in White Desert, Farafra Oasis, Egypt

This is a beautiful cluster of clear quartz crystals on a carpet of green pistacite, also known as epidote. The epidote underneath are clearly visible through the quartz. 

Pistacite is a historical term once commonly used to describe a green variety of epidote, named for its pistachio-like color. While the term is still recognized among collectors and in older literature, it has largely been replaced in modern mineralogy by the more general name green epidote.

Pistacite (green epidote) is often associated with growth, release, and emotional healing. Some believe it helps clear negative energy and encourages letting go of patterns or emotions that no longer serve you. It’s thought to support personal transformation by boosting a sense of hope and forward movement, especially during times of change or recovery.

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

Name: Clinozoisite var. Pistacite and Quartz Cluster
Specimen Size:  Cabinet-Sized
Dimensions: 85x70x57 mm / 3.3x2.7x2.2  inches
Weight: 326.4 Grams / 11.5 ounces
Origin: Mined in Alicante, Valencian Community, Spain