This piece is from the collection of Roger Maynard. Roger is a friend and was a long-time geologist with the US Geological Survey in New Mexico.
Brought to you by SIDEWINDER MINERALS
$75.00 $65.00
TOURMALINE, variety UVITE. Thumbnail-size crystal has dark red color. The red is visible under direct lighting. Red uvite crystals are far less common then green ones. Luster is vitreous. The crystal is 1.0 inch in length. From the Brumado area of Bahia, Brazil.
UVITE is a member of the Tourmaline group. It is a calcium, magnesium, aluminum, boro-silicate mineral. The crystal system is Trigonal. Hardness is 7 – 7.5 on the Mohs scale. Uvite occurs primarily in calcium- and boron-rich, metamorphic and skarn-type environments. In 2020, the International Mineralogical Association redefined Uvite as two separate minerals that are end-members of a solid-solution series: Uvite now refers to the hydroxyl-dominant end-member, while Fluor-uvite is the correct name for the fluorine-dominant end-member.
Location: Pomba pit, Serra das Éguas, Brumado, Bahia, Brazil
Metaphysical properties: Uvite diminishes fears and promotes self-confidence, awakens one from illusions, brings an awareness of reality, and enhances fortitude.
Specimen size: 1.0 x 0.5 x 0.5 inches
Specimen weight: 10 grams (0.4 ounces)
This piece is from the collection of Roger Maynard. Roger is a friend and was a long-time geologist with the US Geological Survey in New Mexico.
Brought to you by SIDEWINDER MINERALS
Weight | 10 oz |
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Dimensions | 5 × 5 × 5 in |
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Brilliant GOLD LEAF from the famous Little Jonny Mine in Leadville, Colorado. The gold weighs 1.1 grams (0.0387 ounces).
AVAILABILITY: 1 in stock
TOURMALINE, variety RUBELLITE. Single, translucent crystal with cranberry red color. One end is terminated. Luster is vitreous. Sides are striated. The crystal is 1.9 inches in length. Pictures show with and without a light on the side to illustrate the translucency. From the famous Cruzeiro Mine in Brazil.
This piece is from the collection of Roger Maynard. Roger is a friend and was a long-time geologist with the US Geological Survey in New Mexico.
RUBELLITE is the red, lithium-rich variety of the Tourmaline group. It is a sodium, lithium, aluminum, boro-silicate mineral. The crystal system is Trigonal. Hardness is 7 – 7.5 on the Mohs scale.
Location: Cruzeiro mine, São José da Safira, Minas Gerais, Brazil
The Cruzeiro Mine is one of the most important gem and specimen mines in the world. It has been mined for tourmalines and other mineral specimens since the 1950’s. There are at least five distinct pegmatites worked in the mine.
Specimen size: 1.9 x 0.5 x 0.5 inches
Specimen weight: 14.5 grams (0.5 ounces)
AVAILABILITY: 1 in stock
Double-terminated, Scalenohedral Rhodochrosite from Uchucchacua Mine, Peru
Very pretty and showy gem lustrous red scalenohedral crystals of rhodochrosite are set on matrix. The largest rhodochrosite crystal is double-terminated and measures 17 mm in length. Excellent cherry-red color. Glassy to Vitreous luster.
Location: Uchucchacua Mine, Oyon Province, Lima Department, Peru
Specimen size: 5.0 x 3.4 x 3.2 cm (2.0 x 1.3 x 1.3 inch) Miniature
Specimen weight: 70 grams (2.5 oz)
AVAILABILITY: 1 in stock
Cluster of green PERIDOT crystals. Peridot is a green, gemmy variety of Forsterite (Olivine). The largest Peridot crystal is 1.1 inches in length. From Pakistan. Peridot is a highly desirable precious gemstone. Peridot is the birthstone for the month of August and the 16th wedding anniversary gemstone. This piece is from the collection of Roger Maynard. Roger is a friend and long-time geologist with the US Geological survey in New Mexico.
AVAILABILITY: 1 in stock
Large, translucent SCHEELITE crystal with a contact twin. The largest face is 1.4 inches long. Brilliant golden-yellow color. It fluoresces blue under short wave UV light. The matrix is silvery MUSCOVITE. The specimen is from the famous Pingwu mine in China. Scheelite is a major ore for Tungsten. This specimen is from the collection of Roger Maynard. Roger is a friend and was a long-time geologist with the US Geological Survey.
AVAILABILITY: 1 in stock
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