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1573 products
Product Type: Smoky Quartz
Approx Weight (per piece): 5.4ct
Size: 12x9.7mm
Shape: Octagon Cut
Color: Dark Smoky Color
Clarity: Clean
Origin: Africa
Product Type: Tanzanite - 3 Piece Lot
Approx Weight (per lot): 1.7tcw
Size: 6.4-6.7 x 4.3-4.5mm
Shape: Oval Cut
Color: Purple and pale green
Clarity: SI
Origin: Tanzania
Tanzanite is renowned for its intense blue and violet colors, but can also be golden, green, lilac and peacock (blue and green). The sole source of tanzanite is the Merelani Hills in northern Tanzania. Discovered in the 1960s, tanzanite is considered rarer than diamonds due to its single-source origin. The mines in Tanzania are exhaustible, adding to the gemstone's allure.
With a hardness of 6.5 to 7 on the Mohs scale, tanzanite is relatively soft compared to some other gemstones. As a result, it requires gentle care to prevent scratches or damage.
Tanzanite is believed to aide with spiritual awareness, insight, and communication. Some attribute it with calming energies and the ability to enhance psychic abilities.
The NWA 267 meteorite fragment offered here is in as found condition. It weighs 16.6 grams, with dimensions of 28x27x22mm. The meteorite will come with two specimen description cards including a signed "The Mark Bostick Collection" card.
This meteorite was once a pile of weathered unclassified meteorite fragments brought to the 2000 Denver show by a Moroccan fossil dealer. These fragments, 73.9 kg. worth, where purchased by Canadian meteorite dealer Dean Bessey, who was told the following on the meteorites: "A nomad found an area with a lot of unusual strange stones near the Morocco/Algeria border. He brought one to a fossil dealer and asked: "I hear that you will pay money for stones like this". After shaking his head in disbelief at a positive response, the nomad gathered up all his camels, wives and children and brought them into the desert to search over his personal strewn field." Or at least that is how the story goes.
Many thousands of stones, 73.9 kilograms, were recovered, most of these fragments under 20 grams. Then 356 grams and a thin section of the meteorite was donated to the Vernadaky Institute of Geochemistry and Analytical Chemistry, part of the Russian Academy of Sciences, Moscow, where it was classified by M. Ivanova. This meteorite, an ordinary stone chondrite, H4 class has a Shock Rating of 2 and a Weathering Grade of 2-3 and the classification information was published in Meteoritical Bulletin 85.
While the stone did not get a heavy weathering grade, very few specimens show any crust. This meteorite is believed to have come from the Hebe class asteroids. I've included an informational photo of a NWA 267 Meteorite thin section which are used in earth geology, and in meteorites to identify the minerals in them. The photo shows a large imperfect elongated chondrule. Chondrules are unique features to meteorites. The chondrule shown is composed of mostly pyroxene and the bright colored minerals scattered throughout the thin section is mostly olivine.
One of the fun facts is that the NWA 267 was also the first meteorite ever minted onto a real legal tender coin. The National Bank of Liberia made 999 of these $10.00 Silver coins in 2004. The meteorite used in the coin, was supplied by Mark Bostick himself and his name and signature came on the certificate with the coin. The provided images of the coin shows a nomad on a camel on the obverse. A meteorite is falling through the star filled sky in the background. Reverse of coin has a seal of the Liberia Government and notes its value. We include 2 specimen cards but unfortunately the thin section and coin used in the ad are NOT included!
This is a large Hornblende crystal from Tory Hill, Ontario. The specimen has all crystal faces and terminations. It is a lustrous black color and in very good condition. There is also minor apatite on some of the surfaces. The specimen is in excellent condition.
Product Name: Hornblende Crystal
Specimen Size: Large Cabinet Sized
Dimensions: 106x79x76 mm / 4.2x3.1x3.0 inches
Weight: 873 Kg / 1 Lbs 15 Ounces
Origin: Tory Hill, Ontario, Canada
This is natural pink Elbaite Tourmaline from Mineral Gerais, Brazil. It is a thumbnail specimen that measures 21.8x3mm and has a weight of 1.9ct. The tourmaline 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 Name: Tourmaline Crystal
Specimen Size: Thumbnail Sized
Dimensions: 21.8x3.mm
Weight: 1.9ct
Origin: Mined in Morro Redondo Mine pegmatite, Coronel Murta, Minas Gerais, Brazil
Name: Schorl Tourmaline
Specimen Size: Thumbnail-Sized
Dimensions: Specimen 20x16 mm / 0.8x0.6 inches
Specimen Box 33x33 mm / 1.3x1.3 inches
Weight: 19.5 Grams / 0.7 Ounces (including box)
Origin: Mined in Rice Mine, N. Groton, Grafton County, New Hampshire
This locality dates to the late nineteenth century and fine specimens from here are hard to obtain.
This is a superb looking slice of a Sahara Desert NWA 091 classified meteorite weighing 11.53 grams. Its dimensions are 33x26x4mm.
It is a nice dark gray color and is full of small holes (the small black specks in the pictures). It is very similar to Kimble County except a bit darker. The single piece was found in the desert in 2000 and has a total mass of only 370 grams and was classified as an L6 by UCLA. It is shock level 4 (very high) and weathering grade W2 (Low). It is highly vesiculated from a shock event.
This piece displays extremely well with its professionally finished cut face and is also a very nice size. Would be a beautiful addition to any new or existing collection. Comes with a Canagem Collection specimen card.
Specimen Size: Thumbnail-Sized
Dimensions: Specimen 29x20 mm / 1.1x0.8 inches
Specimen Box 33x33 mm / 1.3x1.3 inches
Weight: 17.6 Grams / 0.6 Ounces (including box)
Origin: Mined in Faraday Twp, Bancroft, Ontario, Canada
A pseudomorph occurs when one mineral replaces another but retains the original mineral's crystal structure. In the case of turquoise after apatite pseudomorph, turquoise replaces apatite, but it still retains apatite's crystal shape.
This process leads to a visually fascinating specimen where the exterior shape looks like apatite crystals, but the composition and color are distinctly turquoise, often with the bright blue or green shades typical of turquoise.
Name: Pseudomorph Turquoise After Apatite
Specimen Size: Thumbnail-Sized
Dimensions: Specimen 13x10 mm / 0.5x0.4 inches
Specimen Box 33x33 mm / 1.3x1.3 inches
Weight: 11.7 Grams / 0.4 Ounces (including box)
Origin: Mined in Baviacora Mine, Sonora, Mexico
Córdoba is one of Europe's most famous pyromorphite-producing regions, known for yielding green, yellow-green, olive-green and brownish-green crystals from its historic lead mining districts. Spanish pyromorphite is highly regarded among mineral collectors for its rich color and attractive crystal forms.
Name: Pyromorphite
Specimen Size: Thumbnail-Sized
Dimensions: Specimen 24x11 mm / 0.9x0.4 inches
Box 33x33 mm / 1.3x1.3 inches
Weight: 18 Grams / 0.6 Ounces (including box)
Origin: Mined in Córdoba, Spain

