Crystals & Minerals

Iceland Spar, also known as optical calcite, is a clear, transparent variety of calcite famous for its unique optical property called double refraction. When you place the crystal over text or an image, it appears doubled — a visual effect that occurs because light splits into two rays as it passes through the crystal. This fascinating trait made Iceland spar historically important in early optical instruments and scientific studies, including navigation and the development of polarizing microscopes.

It’s typically colorless or very lightly tinted and forms naturally in sharp, rhombohedral shapes. High-quality Iceland spar is most famously found in Iceland, though it also occurs in places like Mexico, the U.S., and China.

Iceland Spar (optical calcite) is often associated with clarity, insight, and truth. Because of its double refraction property, some see it as a symbol of seeing beyond surface appearances — helping to highlight different perspectives or reveal hidden aspects of a situation. It's thought to support clear thinking and honest communication, making it a favorite for meditation or decision-making spaces.

Name: Iceland Spar Optical Calcite
Specimen Size:  Miniature-Sized
Dimensions: 36x25x21 mm / 1.4x1.0x10.8 inches 
Weight: 59 Grams / 2.1 Ounces
Origin: Guangxi Province, China

This is a collect of beautiful, thumbnail sized mineral specimens.  These rare, premium specimens will be protected in individual display boxes that measure  28x28x21 mm (1x1x7/8 inches).

The locations of the mines for each specimen are as follows:

• Charoite - Murun, Siberia, Russia
• Olivenite - Majuba Hill, Nevada, USA
• Cowlesite - Burnt Cabin Creek, Spray, Oregan, USA
• Berthierite - Herja, Romania

This is a collect of beautiful, thumbnail sized mineral specimens.  These rare, premium specimens will be protected in individual display boxes that measure  28x28x21 mm (1x1x7/8 inches).

The locations of the mines for each specimen are as follows:

• Analcime - Burnt Cabin Creek, Spray, Oregon
• Rosasite - Ojuela Mine, Mapimi, Mexico
• Minyulite - Tom's Quarry, Kapunda, South Australia
• Kasolite - Musonoi Mine, Kolwezi, DR Congo

Mimetite crystals from the Mount Bonnie Mine in the Northern Territory of Australia are known for their lustrous, often iridescent, tan to yellow, and sometimes colorless or white, tabular, hexagonal crystals.  It is frequently found on a gossan matrix. These specimens are considered rare and highly sought after by collectors, especially those with unusual luster or iridescent qualities. The Mount Bonnie Mine is a well-known locality for producing fine mimetite specimens, often associated with other minerals like Duftite and Coronadite

This extremely rare specimen will come protected in its specimen display box with a Canagem Specimen Mineral Card.

Name:  Mimetite Crystal
Specimen Size:  Thumbnail-Sized
Dimensions:  18X12 mm  / 0.7x0.5 inches
Weight: 3.69 Grams / .13 Ounces
Origin: Mined in Mount Bonnie Mine, Grove Hill, Victoria-Daly Region, Northern Territory, Australia

Samarskite is a radioactive rare earth mineral. Samarskite crystallizes in the orthorhombic – dipyramidal class as black to yellowish brown stubby prisms although it is typically found as anhedral masses. Specimens with a high uranium content are typically metamict and appear coated with a yellow brown earthy rind.

Samarskite-(Y) is rich in rare earth elements (REEs), niobium (Nb), and tantalum (Ta)—all of which are valuable in advanced electronics, alloys, and green energy technologies. The mineral can also contain trace amounts of uranium and thorium, which may cause it to be slightly radioactive.

Due to its uranium content, samarskite-(Y) is considered radioactive. It's recommended to wash hands after handling and avoid inhaling dust when breaking or handling the mineral. 

This specimen is in very good condition and displays very well.  Make this a special specimen in your collection. 

Name: Samarskite (Y)
Specimen Size:  Thumbnail-Sized  
Dimensions:  18x18x10 mm / 0.7x0.7x0.4 inches  
Weight:  3.4 Grams / 0.12 Ounces   
Origin: Luster # 2 1/2 Pegmatite, South Platte Mining District, Jefferson County, Colorado, USA 

Health Warning:    Contains uranium – always wash hands after handling. Avoid inhaling dust when handling or breaking. Never lick or ingest. Avoid prolonged exposure in proximity of the body. Store away from inhabited areas.

This is a 16.9ct lot of beautiful rough emeralds.  This is the exact lot that you will receive.  The sizes of the emeralds range from 7.5 to 9.0 mm.

Ancient Romans associated the emerald with Venus, the goddess of love and beauty.   They firmly believed that this stone's purity was so strong that no evil presence could exist around it.

Emerald is connected to the heart chakra.  It is said to bring about great love and promote happiness and faithfulness in a relationship.

Carletonite is a rare and visually delicate mineral best known for its soft blue color, though it may also appear in pink, white, or colorless forms. It crystallizes in the tetragonal system and has a Mohs hardness of 4 to 4.5, which makes it too soft for most jewelry applications but highly prized by collectors. It displays a vitreous luster and is usually transparent to translucent.

Carletonite was first discovered in the Mont Saint-Hilaire alkaline complex in Quebec, Canada, which remains the only location where well-formed, high-quality specimens have been found. The mineral was named in honor of Carleton University in Ottawa. Although Mont Saint-Hilaire is the only confirmed and significant source, there have been occasional reports of possible carletonite occurrences in Russia and the United States. These findings are extremely limited and typically lack the clarity and crystal quality seen in the Canadian material.

Name:  Carletonite
Specimen Size:  Miniature-Sized  
Dimensions: 58x34x39 mm / 2.3x1.3x1.5 inches  
Weight:  88.8 Grams / 3.1 Ounces  
Origin:  Mined in Mont Saint Hilaire, Quebec, Canada

Hubnerite is a rare manganese tungstate mineral and the manganese-dominant member of the wolframite series. It typically forms dark reddish-brown to nearly black blade-like crystals with a submetallic to silky luster. This dense mineral is an important tungsten ore and is commonly found in high-temperature hydrothermal veins, often with quartz and fluorite. Specimens from Peru and Colorado are especially well known for their sharp, aesthetic crystal formations.

This specimen is in very good condition and displays very well.  Make this a special specimen in your collection. 

Name: Hubnerite
Specimen Size:  Miniature-Sized  
Dimensions:  35x24x22 mm / 1.4x0.9x0.9 inches  
Weight:  18.2 Grams / .06 Ounces   
Origin: Ruby Mine, San Juan Co., Colorado

Zinnwaldite is a rare, lithium-rich mica mineral known for its dark, silvery brown to reddish-brown color. It forms in layered, sheet-like crystals and has a soft, slightly shiny surface typical of the mica group. It was first discovered in the Zinnwald area on the German–Czech border, which is where its name comes from.

Zinnwaldite is believed to promote clarity, balance, and inner strength—making it an excellent companion for decision-making, emotional resilience, and self-trust.

This specimen is in very good condition and displays very well.  Make this a special specimen in your collection. 

Name: Zinnwaldite
Specimen Size:  Cabinet-Sized  
Dimensions:   72x44x22 mm / 2.7x1.7x1.5 inches  
Weight:  61.7 Grams / 2.2 Ounces   
Origin: Price Lake, Florence Co., Wisconsin

Astrophyllite is a striking and rare mineral known for its bronze to golden-bladed crystals that radiate like starbursts, often embedded in a dark matrix of other minerals. The name comes from Greek, meaning “star leaf,” referring to its star-like crystal formations. It  is found in locations such as Russia, Norway, Greenland, and Canada.  This specimen of Astrophyllite crystals originates from the world famous site of Mont Saint-Hilaire, Quebec. 

There are other traces of minerals such as pink albite, analcime and microcline in a complex matrix in a spectacular shape. 

Astrophyllite is often seen as a stone of inner illumination and self-discovery. Some believe it helps reveal hidden potential and encourages personal truth, making it a supportive companion during times of change or reflection. It’s sometimes associated with letting go of the past and embracing a more authentic path forward.

This specimen is in very good condition and displays very well.  Make this a special specimen in your collection. 

Name: Astrophyllite Cluster
Specimen Size:  Cabinet-Sized  
Dimensions:   70x44x37 mm / 2.7x1.7x1.5 inches  
Weight:  70.7 Grams / 2.5 Ounces   
Origin: Mont Saint-Hilaire, Quebec, Canada

This is a natural cluster formation of large calcite crystals with hematite inclusions. This piece has some white color to translucent crystals with areas of orange/red coloring from hematite inclusions, with sharp tabular crystal formations. There are some nicks and imperfections on a few crystals but would still shine in the proper setup.  They don't take away from how interesting this piece is.  Would be a nice addition to any new or existing collection.

Name: Calcite with Hematite Crystal Cluster
Specimen Size:  Cabinet-Sized
Dimensions: 75x54x55 mm / 2.8x2.1x2.2 inches 
Weight:  160.5 Grams / 5.7 oz 
Origin: Mined in Lane Quarry, Westfield, Hampden Co., Massachusetts, USA

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 marcasite crystal form.  It is in excellent condition.  

Name: Goethite After Marcasite Pseudomorph
Specimen Size:  Miniature-Sized Specimen
Dimensions:  27x24x21 mm / 1.1x0.9x0.8 inches
Weight: 20.8 grams / 0.7 ounces
Origin: White Desert, Farafra Oasis, Egypt