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Oolites in the Great Salt Lake, Utah, are tiny, sand-sized, spherical or ovoid grains (0.15–1.5 mm) formed by calcium carbonate precipitating in concentric layers around a nucleus—often brine shrimp fecal pellets or mineral fragments—in shallow, wave-agitated water. These light brown grains, commonly found on Antelope Island and Stansbury Island, are modern examples of carbonate sedimentation.
This geological specimen found around Stansbury Island and other parts of the Great Salt Lake is an interesting addition to any mineral collection.
Name: Oolites
Specimen Size: Miniature-Sized
Dimensions: 50x22 mm / 2.0x0.9 inches (Incl bottle)
Weight: 31.4 Grams / 1.1 ounces (incl bottle)
Origin: Salt Lake, Utah, 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 and bladed marcasite crystal form. It is in excellent condition.
Name: Goethite After Marcasite Pseudomorph
Specimen Size: Miniature-Sized Specimen
Dimensions: 36x27x27 mm / 1.4x1.0x1.0 inches
Weight: 45.2 grams / 1.6 ounces
Origin: White Desert, Farafra Oasis, Egypt
The Gold Hill Wash Prospect, part of the Clifton-Gold Hill Mining District, is known for its rich mineral resources, including jarosite. This mineral is part of the larger group of minerals found in the area, which also includes limonite.
The Gold Hill Mine, operated by the Western Utah Copper Company in the early 20th century, was significant for its arsenic deposits, although it closed after World War I. The mine's portals and shafts have since been sealed by the state of Utah.
This specimen from the Gold Hill Mine is a matrix covered with minute jarosite crystals. This specimen is an interesting addition to any mineral collection.
Name: Jarosite
Specimen Size: Miniature-Sized
Dimensions: 53x49x33 mm / 2.1x1.9x1.3 inches
Weight: 64.91 Grams / 2.3 ounces
Origin: Mined in Gold Hill Mine, Gold Hill, Gold Hill Mining District (Clifton Mining District), Tooele County, Utah, USA
Pyromorphite (lead chloro-phosphate) was a common mineral of the oxidized zone of the Broken Hill orebody, and exceptional specimens of various crystal forms and colors were found. Some examples were yellow and some brown, while others were green. Their crystal habits varied from almost needle-like to thick barrels. This example illustrates one of those forms – barrel-shaped, six-sided, clove-brown crystals.
This hard to acquire specimen is in good condition. A rare and really beautiful specimen. Would be a great addition to any new or existing collection.
Name: Pyromorphite
Specimen Size: Thumbnail-Sized
Dimensions: 22x9x8 mm / 0.9x0.3x0.3 inches
Weight: 5.74 Grams / 0.2 ounces
Origin: Mined in Broken Hill, New South Wales, Australia
Cubanite is a rare copper-iron sulfide mineral prized by collectors for its distinctive brassy-yellow metallic luster and geometric crystal forms. This exceptional specimen originates from the now-closed Henderson No. 2 Mine in Chibougamau, Québec—a historically significant locality that produced some of the finest cubanite crystals in North America.
At 6.27 grams, this piece represents a substantial and well-formed example of the species. The mine's closure adds to the collectability and scarcity of material from this source.
This top specimen is in very good condition and would be a beautiful addition to any new or existing collection.
Name: Cubanite on Matrix
Specimen Size: Thumbnail-Sized
Dimensions: 28x16x8 mm / 1.1x0.6x0.3 inches
Weight: 6.27 Grams / 0.2 oz
Origin: Mined in Henderson No. 2 mine, Chibougamou, Québec, Canada
Orange spessartine garnets from California are highly regarded for their intense "mandarin" orange color and are often found in matrix, particularly in the pegmatites of Southern California, including areas near Kern County. While the most famous, high-quality, gemmy spessartine crystals in matrix, accompanied by schorl and quartz, are famously associated with the Little Three Mine in nearby Ramona (San Diego County), similar pegmatite occurrences in the region, including Kern County, produce desirable collector specimens.
Spessartine garnet is considered a "high vibration" stone and is often associated with creativity. The specimens from this region are known for being 100% natural and untreated.
Name: Spessartine Garnet
Specimen Size: Cabinet-Sized
Dimensions: 70x60x43 mm / 2.8x24x1.7 inches
Weight: 240 Grams / 8.5 oz
Origin: Kern County, California
This is a great fluorescent Scapolite and Biotite crystal from Ontario. Fluorescent scapolite, often referred to by the synonym wernerite is a well-known, highly reactive fluorescent mineral found in Haliburton County, Ontario, particularly within the Bancroft area. These specimens are prized for their bright reactions under ultraviolet (UV) light.
Haliburton scapolite often fluoresces a bright yellow under longwave (LW) and midwave (MW) UV light. Some specimens, especially those from specific roadcuts, can exhibit a bright red or magenta color under shortwave (SW) UV light.
The specimen is in very good condition. Make this a special specimen in your collection.
Name: Scapolite and Biotite Crystals
Specimen Size: Cabinet-Sized
Dimensions: 75x65x50 mm / 3.0x2.5x2.0 inches
Weight: 296.25 grams / 10.4 ounces
Origin: Haliburton County, near Bancroft, Ontario Canada
Quartz from the Palermo #1 pegmatite in North Groton, New Hampshire typically occurs as clear to smoky hexagonal crystals with a bright vitreous luster, formed in pockets within a complex granitic pegmatite. These quartz crystals are often found attached to or associated with mica-rich schist, the layered metamorphic host rock composed mainly of mica and quartz, sometimes with sillimanite.
The site has been mined for various materials since 1863, including mica, beryl, and feldspar, and is now primarily known for its rich specimen variety, though it is not open to individual collecting.
Name: Quartz and Schist
Specimen Size: Cabinet-Sized
Dimensions: 75x59x35 mm / 2.9x2.3x1.4 inches
Weight: 141.83 Grams / 5 ounces
Origin: Mined in Palermo No. 1, Groton, Grafton Co.
This Analcime specimen comes from the Poudrette Quarry at Mount-Saint-Hilaire and displays a nice terminated crystal. The specimen also has many black aegirine crystals and astrophyllite sprays at the base of the main crystal.
Great looking translucent, colorless analcime crystal cluster. An excellent specimen from the world renowned location that is MSH. This beautiful crystal would be a great addition to any new or existing collection.
Name: Analcime, aegirine and astrophyllite
Specimen Size: Miniature-Sized
Dimensions: 58x53x38 mm / 2.3x2.1x1.5 inches
Weight: 142.77 Grams / 5.0 Ounces
Origin: Mined in Poudrette Quarry, Mont-Saint-Hilaire, Québec, Canada
This is a natural raw green tourmaline crystal slice, it measures 9.8x9.5mm 2.28ct. This green tourmaline is transparent and 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 Slice
Specimen Size: Thumbnail Size
Dimensions: 9.8x9.5mm
Weight: 2.28ct
Origin: Brazil
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