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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
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
Purpurite Crystal | 29.2 gr | Cameroon Pegmatite | Famous Erongo Namibia
$37.00 CAD
Unit price perPurpurite Crystal | 29.2 gr | Cameroon Pegmatite | Famous Erongo Namibia
$37.00 CAD
Unit price perThis is a fine specimen of Purpurite, a very rare phosphate of manganese, with specimens usually coming from the manganese-rich area of Southwest Africa. It is prized for both its rarity and its intense purple color. There is iridescent purpurite on both sides of this rich specimen.
Name: Purpurite
Specimen Size: Miniature-Sized
Dimensions: 38x26x24 mm / 1.5x1.0x0.9 inches
Weight: 39.2 gr / 1.4 oz
Details: Mined in Namibia
Green Vesuvianite Crystal | Large 41 Gr | Closed Jeffrey Mine | Asbestos, Quebec
$121.00 CAD
Unit price perGreen Vesuvianite Crystal | Large 41 Gr | Closed Jeffrey Mine | Asbestos, Quebec
$121.00 CAD
Unit price perThis amazing specimen of Vesuvianite was collected in the now closed Jeffery Mine, Asbestos, Quebec, Canada. The specimen is made up of a combination of green and mauve vesuvianite crystals. It is a large specimen in good condition. A great addition to any collection!
Vesuvianite was first discovered on Mount Vesuvius in Italy in the 18th century, hence its name. It 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: 56x31x22 mm / 2.2x1.2x0.9 inches
Weight: 41 grams / 1.4 ounces
Origin: Mined in Jeffery Mine, Asbestos, Quebec, Canada
Olivine Volcanic Bomb | Lava Coated Crystal | 293.8 gr | Mt Shadwell, Australia
$159.00 CAD
Unit price perOlivine Volcanic Bomb | Lava Coated Crystal | 293.8 gr | Mt Shadwell, Australia
$159.00 CAD
Unit price perAn 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 piece has been cut to showcase the beautiful green olivine crystals. It would be a beautiful addition to any new or existing collection. Comes with a Canagem Collection specimen card.
Name: Lava Coated Volcanic Crystal Bomb
Specimen Size: Large Cabinet-Sized
Dimensions: 106x58x48 mm / 402x2.3x1.9 Inches
Weight: 293.8 Grams / 10.4 Ounce
Details: Volcanic activity Mortlake, Victoria, Australia
Calcite with Hematite on Matrix | 267.8 grams | Fluorescent Crystal | Lane's Quarry, Westfield MA
$67.00 CAD
Unit price perCalcite with Hematite on Matrix | 267.8 grams | Fluorescent Crystal | Lane's Quarry, Westfield MA
$67.00 CAD
Unit price perThis 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: 95x81x45 mm / 3.7x3.2x1.8 inches
Weight: 267.8 Grams / 9.4 oz
Origin: Mined in Lane Quarry, Westfield, Hampden Co., Massachusetts, USA
Olivine Volcanic Bomb | Lava Rock Crystal | 1.45 Kg, | Mt Shadwell, Australia
$870.00 CAD
Unit price perOlivine Volcanic Bomb | Lava Rock Crystal | 1.45 Kg, | Mt Shadwell, Australia
$870.00 CAD
Unit price perVolcanic bombs are large clots of volcanic lava rock 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 lava rocks contain olivine crystals, they are referred to as olivine volcanic bombs.
Mount Shadwell, a dormant volcano, was formed 25,000 years ago and is believed to have last erupted about 5,000 years ago. The town of Mortlake, which is situated at the foot of the volcano, is the self-proclaimed olivine capital of Australia. This is where large ejected rocks from Mt Shadwell, called volcanic bombs, are found.
This huge museum piece has been cut to show the green olivine crystals which are showcased beautifully against the surrounding black lava crust.
Would be a beautiful addition to any new or existing collection. Comes with a Canagem Collection specimen card.
Name: Olivine Crystal Bomb
Specimen Size: Large Cabinet-Sized
Dimensions: 173x121x61 mm / 6.8x4.8x2.4 Inches
Weight: 1.45 Kg / 3 lbs 3 Ounces
Details: Volcanic activity Mortlake, Victoria, Australia
Gypsum var "Duckbill" Selenite Crystal | Fluorescent | 55.3 gr | Red River Floodway | Winnipeg, Manitoba Canada
$166.00 CAD
Unit price perGypsum var "Duckbill" Selenite Crystal | Fluorescent | 55.3 gr | Red River Floodway | Winnipeg, Manitoba Canada
$166.00 CAD
Unit price perWe have for you a large Duckbill style gypsum var Selenite from world famous Red River Floodway in Winnipeg, Manitoba Canada. This is a large floater gypsum crystal cluster that occurred in the Pleistocene Age in Lake Agassiz clay. The distribution of the gypsum covers a 20 kilometer wide area, but the Floodway is one of the few excavations in the very flat terrain deep enough to intersect the gypsum layer.
The Red River Floodway has become famous, not only for its engineering marvel but also for the extremely unusual selenite specimens that were discovered during excavations. The formation is due to two generations of growth with the first growth forming near-spherical rosettes of stout intergrown crystals and the second growth, that made them famous, grew large golden crystals with a unique twinning shape that resembled a duck’s bill. These “duckbill” selenites are famous the world over and have found nowhere else in the world to date and collecting is now carefully controlled. Specimens range from having a single crystal, to having many radiating from the rosette. Some rare examples have two rosettes conjoined in striking formations. This specimen is in excellent condition.
Name: Gypsum var. Selenite
Specimen Size: Miniature-Size
Dimensions: 51x36X39 mm / 2.0x1.4X1.5 inches
Weight: 55.3 grams / 1.9 oz
Origin: Red River Floodway, Winnipeg, Manitoba, Canada
Green Vesuvianite Crystal | 14.8 Gr | Closed Jeffrey Mine | Asbestos, Quebec
$77.00 CAD
Unit price perGreen Vesuvianite Crystal | 14.8 Gr | Closed Jeffrey Mine | Asbestos, Quebec
$77.00 CAD
Unit price perThis specimen of Vesuvianite was collected in the now closed Jeffery Mine, Asbestos, Quebec, Canada. The specimen is made up of a combination of green and mauve vesuvianite crystals. It is in good condition. A great addition to any collection!
Vesuvianite was first discovered on Mount Vesuvius in Italy in the 18th century, hence its name. It 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: 41x18x14 mm / 1.6x0.7x0.5 inches
Weight: 14.8 grams / 0.5 ounces
Origin: Mined in Jeffery Mine, Asbestos, Quebec, Canada
Brazilianite | Perky Box Thumbnail Specimen | Linópolis, Divino das Laranjeiras | Minas Gerais, Brazil
$44.00 CAD
Unit price perBrazilianite | Perky Box Thumbnail Specimen | Linópolis, Divino das Laranjeiras | Minas Gerais, Brazil
$44.00 CAD
Unit price perBrazilianite 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