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387 products
387 products
Rutile from Diamantina, Minas Gerais, Brazil is a particularly good locality for collector-quality rutile. It is quite different in appearance from the familiar golden rutile needles included in quartz.
Diamantina rutile is commonly found as well-developed, elongated tetragonal crystals with very strong luster. The colour can range from reddish-brown to a very dark wine-red or blood-red, sometimes appearing almost black until the crystal is placed in strong transmitted light. This deep red colour is a characteristic noted specifically for rutile from the Diamantina area and has been associated with relatively higher iron content
Name: Rutile
Specimen Size: Thumbnail-Sized
Dimensions: 20x6x4 mm (Box 33x33 mm / 1.4x1.3x1.3 Inches)
Weight: 11.4 Grams / 0.4 Ounces (including Box)
Origin: Diamantina, Minas Gerais, Brazil
This Diopside specimen, collected in 2002, is from the Jeffrey Mine in Asbestos (now Val-des-Sources), Québec, which is a classic Canadian mineral locality. The crystals are typically green to pale green, colorless or grayish-green, and can be quite transparent and glassy. They commonly occur as slender prismatic or very flat, blade-like crystals, sometimes with strong vertical striations. Some of the Jeffrey Mine diopside is particularly attractive because the crystals are transparent and sharply formed.
Diopside is especially interesting at Jeffrey Mine because it occurs with other well-known minerals from the locality, particularly grossular garnet, vesuvianite, prehnite and wollastonite. Diopside specimens from the mine are now increasingly difficult to obtain, since the Jeffrey Quarry is closed.
Name: Diopside
Specimen Size: Thumbnail-Sized
Dimensions: 27x7x5 mm / 1.1x0.3x0.2 inches
Weight: 2.8 grams / 0.1 Ounces
Origin: Mined at Jeffrey Mine, Asbestos, Québec, Canada
This specimen of violet manganoan Vesuvianite was collected in the now closed Jeffery Mine, Asbestos (now Val-des-Sources), Québec, Canada. This thumbnail specimen features a cluster of lustrous, intergrown Vesuvianite crystals displaying attractive shades of pink, purple and warm salmon-orange. Fine striations are visible on many of the crystal faces, and the specimen has good colour and visual interest from both sides.
The Jeffrey Mine in Asbestos, Quebec, is a classic Canadian locality known for producing Vesuvianite in a remarkable range of colours, including pink, purple, green and multicoloured crystals. Now closed, the mine remains an important source of collectible mineral specimens. This is an attractive example of the colourful Vesuvianite from this well-known locality. A great addition to any collection!
Name: Vesuvianite Crystal
Specimen Size: Thumbnail-Sized
Dimensions: 22x15x13 mm / 0.9x0.6x0.5 inches
Weight: 3.16 grams / 0.1 ounces
Origin: Mined in Jeffery Mine, Asbestos, Québec, Canada
Green tourmaline from the Santa Rosa Mine in Minas Gerais, Brazil, is attractive collector material known for its rich green colour, lustrous crystal faces and well-defined, strongly striated crystals. The Santa Rosa Mine is a well-known Brazilian tourmaline locality and has produced a variety of tourmaline compositions and colours. This tourmaline specimen has not been treated in any way, it is 100% natural.
It is believed that Tourmaline can be used to repel negativity. It is said to enhance one's physical wellbeing by providing an increase in physical vitality, emotional stability, and intellectual acuity.
Product Type: Tourmaline
Specimen Size: Thumbnail-Sized
Dimensions: 24.8x10x8mm
Weight: 4.3 grams | 22 ct
Origin: Santa Rosa Mine, Minas Gerais, Brazil
Russia is the classic locality for uvarovite, and the Saranovskii Mine in the Middle Urals is its type locality. Uvarovite's most desirable colour is a rich emerald or chrome green, often with a very attractive sparkling appearance. Unlike many garnets, however, uvarovite almost never occurs as large individual crystals. It is usually found as tiny, sharply formed crystals covering the surface of a chromite matrix, producing what mineral collectors call a uvarovite druse.
Name: Uvarovite
Specimen Size: Miniature-Sized
Dimensions: 51x30x6 mm / 2.0x1.2x0.2 inches
Weight: 24.3 grams / 0.8 ounces
Origin: Mined in Saranovskii Mine, Ural Mountains, Russia
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).
Mined in various locations as follows: (thumbnail size)
- Cuprite - Daye Mine, Hubei Prov. China
- Autunite - Daybreak Mine, Spokane County, Washington USA
- Scholzite - Reaphook Hill Deposit, Blinman, S. Australia
- Smithite Realgar - Lengenbach Quarry, Binntal, Valais, Switzerland
Apophyllite and prehnite are beautiful minerals that are often found together in attractive mineral specimens. Apophyllite is known for its clear, white, pale green, or sometimes pink, glass-like crystals that often form sharp pyramidal or prismatic shapes. Prehnite is typically pale green to yellow-green and is commonly found in rounded, grape-like formations called botryoidal aggregates.
Apophyllite is believed to promote self-reflection and authentic self-expression, helping to reduce stress, release mental blockages, and overcome anxiety by revealing truth and facilitating the release of suppressed emotions. Prehnite is considered a stone of unconditional love, known for its healing properties, especially for healers, and is thought to bring harmony to spaces, assist in decluttering, and create a healing sanctuary, particularly when used in gardens.
Name: Apophyllite and Prehnite Cluster Crystal
Specimen Size: Cabinet-Sized
Dimensions: 65x58x49 mm / 2.6x2.3x1.9 inches
Weight: 86 Grams / 3 Ounces
Origin: Mined in Mumbai (Bombay), India
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.
Phantom quartz is a variety of quartz, or "rock crystal", that forms over pre-existing crystals. The included crystal is visible due to some variation in composition making the boundary of the included crystal visible. Such crystals display the outlines of numerous smaller crystals, known as phantoms. Great crystal to acquire.
Name: QuartzSpecimen Size: Cabinet-Sized
Dimensions: 64x36x31 mm / 2.5x1.4x1.2 inches
Weight: 104 Grams / 3.7 Ounces
Origin: Mined in Bihar/Orissa, India
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. It has a colourless streak. Prehnite is transparent to translucent, with a vitreous to pearly luster. It forms in cavities in basaltic lavas.
Prehnite is said to be a stone of unconditional love and the crystal to heal the healer. Placing it in the garden is believed to help make a home into a healing sanctuary and teach one how to be in harmony with nature. A good Fung Shui stone, prehnite is said to be helpful for decluttering, helping one let go of possessions no longer needed.
Name: Prehnite Crystal Cluster
Specimen Size: Cabinet-Sized
Dimensions: 75x40x29 mm / 2.9x1.6x1.1 inches
Weight: 94 Grams / 3.3 Ounces
Origin: Mined in Mumbai (Bombay), India
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 Clusters (3 Piece Lot)
Specimen Size: Thumbnail-Sized
Dimensions: 17x15x9 - 20x18x13 mm / 0.7x0.6x0.3 - 0.8x0.7x0.5 inches
Weight: 13.4 Grams (Total) / 0.47 Ounces (Total)
Origin: Mined in Merelani Hills, Arusha, Tanzania
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.
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: 83x60x18 mm / 3.3x2.4x0.7 Inches
Weight: 108.2 Grams / 3.8 Ounces
Details: Volcanic activity Mortlake, Victoria, Australia
This is a bicolor yellow quartz crystal from Madagascar. Madagascar produces beautiful quartz crystal specimens, some of which come from the Ambolo quartz mine in Antsirabe. Smoky quartz and citrine quartz have also been collected from this area, but the supply of natural citrine is extremely limited.
Name: Quartz
Specimen Size: Thumbnail-Sized
Dimensions: Specimen 26x5x5 mm / Box 33x33 mm
Weight: Specimen: 1.2 grams / 11.8 Grams including box
Origin: Mined in Madagascar
The smoky-brown color of this beautiful calcite cluster is a result of trace impurities or microscopic inclusions incorporated during crystal growth. Iron, manganese, or tiny mineral inclusions can impart shades ranging from pale champagne to deep smoky brown.
Donghai Mine, Jiangsu Province, China, is located within the Sulu ultrahigh-pressure metamorphic belt, one of the world's most geologically significant regions. Formed during the collision of two ancient continental plates hundreds of millions of years ago, the area contains rocks that were buried deep within the Earth before being uplifted to the surface. Later hydrothermal activity deposited mineral-rich veins throughout the region, creating exceptional crystals of quartz, fluorite, calcite, and other minerals.
Today, Donghai is internationally recognized as one of China's premier mineral-producing districts. In addition to quartz, the district is well known for its beautifully crystallized fluorite and calcite, valued for their vibrant colors, transparency, and excellent crystal form. Specimens from Donghai are prized not only for their beauty but also for the remarkable geological history they represent.
Name: Smoky Calcite Cluster
Specimen Size: Large Cabinet-Sized
Dimensions: 235x150x100 mm / 9.3x5.9x3.9 inches
Weight: 1.885 Kg / 4.15 pounds
Location: Donghai Mine Jiangsu Province, China
This a beautiful green Fluorite cluster from China's Donghai Mine in Jiangsu Province - a location that's well known for producing stunning fluorite with exceptional clarity and a vibrant green colour.
Donghai Mine, Jiangsu Province, China, is located within the Sulu ultrahigh-pressure metamorphic belt, one of the world's most geologically significant regions. Formed during the collision of two ancient continental plates hundreds of millions of years ago, the area contains rocks that were buried deep within the Earth before being uplifted to the surface. Later hydrothermal activity deposited mineral-rich veins throughout the region, creating exceptional crystals of quartz, fluorite, calcite, and other minerals.
Today, Donghai is internationally recognized as one of China's premier mineral-producing districts. In addition to quartz, the district is well known for its beautifully crystallized fluorite and calcite, valued for their vibrant colors, transparency, and excellent crystal form. Specimens from Donghai are prized not only for their beauty but also for the remarkable geological history they represent.
This is a lovely piece that would make a great addition to any collection.
Name: Green Fluorite Cluster
Specimen Size: Large Cabinet-Sized
Dimensions: 225x140x110 mm / 8.9s5.5x4.33 inches
Weight: 2.3 kg / 5.1 lbs
Location: Donghai Mine, Jiangsu Province, China
This is a natural "Ball Peen" Mica specimen from Branchville, Connecticut. Instead of forming flat, book-like sheets as muscovite usually does, mica specimens from the Branchville Mica Mine develop a rounded, bulbous termination resembling the rounded end of a ball-peen hammer, from which its name is derived.
The Branchville Mica Mine, which has been inactive since 1944 and is mostly flooded, is one of the most historically important mineral localities in the United States. Opened in the 1870s as a mica mine, it quickly became internationally recognized for its scientific significance after Yale University mineralogists discovered an exceptional variety of rare minerals within its pegmatite. The quarry served as the type locality for several newly identified mineral species and played a key role in advancing the study of pegmatites and mineral formation. It is especially famous for producing the distinctive "ball-peen" muscovite crystals, along with fine specimens of beryl, spodumene, and other rare minerals.
This classic specimen from Connecticut will come protected in a Perky Box. The box will show its age but is just another way to show how old the specimen is. The original label when the specimen was catalogued is also a nice touch.
Name: Mica
Specimen Size: Miniature-Sized
Dimensions: 33x19x16 mm / 1.3x0.7x0.6
Weight: 10.9 Grams / 0.4 Ounces
Origin: Mined in Fillow Quarry, Branchville, Redding, Fairfield County, Connecticut, USA
This is an incredible green/yellow, fluorapatite crystal from Cerro del Mercado (Iron Mountain) in Durango, Mexico. It is completely free of the matrix and has a relatively perfect termination. The catalog number 2246 of this phantom specimen came from the Earl Calvert Collection.
At Cerro de Mercado, numerous veins containing gemmy, lemon-yellow to greenish fluorapatite crystals cut through the hematite massif. These crystals have been collected for decades from the area's iron mines, but they have become much more scarce with recent mechanization of the mining operations.
The bright, lustrous apatite crystals form hexagonal shapes with off-center terminations. They are found in vugs, often associated with quartz and calcite. Most crystals are around an inch in length, though larger crystals up to about 4 inches long have been found.
Name: Fluorapatite Crystal
Specimen Size: Thumbnail-Sized
Dimensions: Specimen 22x7x6mm / 0.9x0.3x0.2 inches
Box 33x33 mm / 1.3x1.3 inches
Weight: Specimen 2.23 grams
Origin: Mined in Cerro del Mercado, Durango, Mexico

