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$185.00$165.00Two blue, translucent TOURMALINE, variety ELBAITE, crystals with pink LEPIDOLITE Mica from the famous Cruzeiro mine in Brazil. Minor white Calcite. Luster is vitreous. The longest crystal is 1.2 inches. This specimen is thumbnail size as it fits in a 1.25 inch perky box. Pictures are with and without a direct light on the side of the crystals to show the blue color and translucency.
AVAILABILITY: 1 in stock
$385.00$340.00Large, 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
$75.00$65.00This brilliant cluster of BRAZILIANITE crystals is translucent. The longest crystal is 1.0 inch. Color is green with a hint of yellow. The luster is vitreous. 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
$175.00$150.00Slice from a cluster of RHODOCHROSITE STALACTITES from the famous Capillitas mine in Argentina. The dozens of creme-colored “straws” are quite striking. Three years ago, the mine was taken over by the government to mine silver and copper. No more Rhodochrosite will come from this mine.
AVAILABILITY: 1 in stock
$200.00$180.00Cross section of a RHODOCHROSITE STALACTITE from the famous Capillitas mine in Argentina. Since most of the Rhodochrosite from this mine is sold to make jewelry, it is priced according to weight. This piece weighs 25 grams. At US$8 per gram, the price is $200. Three years ago, the mine was taken over by the government to mine silver and copper. No more Rhodochrosite will come from this mine.
AVAILABILITY: 1 in stock
$336.00$300.00Cross section of a RHODOCHROSITE STALACTITE from the famous Capillitas mine in Argentina. Since most of the Rhodochrosite from this mine is sold to make jewelry, it is priced according to weight. This piece weighs 42 grams. At US$8 per gram, the price is $336. Three years ago, the mine was taken over by the government to mine silver and copper. No more Rhodochrosite will come from this mine.
AVAILABILITY: 1 in stock
$99.00$85.00This piece glitters! Stunning color contrast of green Siderite “Blades” with brassy iridescent Chalcopyrite, whitish Calcite, and gray Tetrahedrite crystals in this specimen. The green blades of Siderite in this piece are very rare! Several of the Siderite blades are at least 0.5 inch long. The Calcite crystals are flattened and translucent. The luster of the Siderite is vitreous while the Chalcopyrite and Tetrahedrite have a brilliant metallic luster.
AVAILABILITY: 1 in stock
$250.00$200.00Cluster of large, green, translucent FLUORITE crystals with several CALCITE crystals. The Fluorite fluoresces Blue under long-wave UV light. Specimen is 6.1 inches in length. Largest Fluorite cube is 3.5 inches long. All Fluorite crystals have beveled edges, usually with etching. 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
$30.00$25.00Stibnite is an Antimony Sulfide mineral. This specimen has one primary Stibnite crystal 5.4 inches long that is terminated at one end. The color is silver-gray. It has a metallic luster. The piece has many minor Stibnite crystals at one end.
AVAILABILITY: 1 in stock
$99.00$80.00This specimen is entirely translucent Hyalite Opal except for a little bit of dirt on the bottom that I could not clean off. The Hyalite fluoresces a brilliant green under a short-wave UV light.
AVAILABILITY: 1 in stock
$180.00$150.00Reddish-Pink RHODOCHROSITE with minor Tetrahedrite and Chalcopyrite from The Sweet Home Mine in Colorado.
AVAILABILITY: 1 in stock
$99.00$80.00Reddish-Pink RHODOCHROSITE with minor Galena and Pyrite from The Sweet Home Mine in Colorado.
AVAILABILITY: 1 in stock
$35.00$30.00Vitreous black TOURMALINE from the Harney Peak Pegmatite of South Dakota.
AVAILABILITY: 1 in stock
$40.00$35.00Cluster of brilliant emerald-green Dioptase crystals on matrix. The largest dioptase crystal is 0.5 inches. Crystals are rhombohedral shape. The specimen is from the type location for dioptase: Altyn-Tyube deposit, Karaganda Region, Kazakhstan.
AVAILABILITY: 1 in stock
AVAILABILITY: 1 in stock
AVAILABILITY: 1 in stock
AVAILABILITY: 1 in stock
- $90.00
Fluorite from Mount Antero (the highest mineral locality in North America)
Rare specimen
6 x 6 x 2 cm Specimen
2 x 2 x 1 cm Fluorite Crystal
Sold by Rocky Mountain Gems and Minerals
AVAILABILITY: 1 in stock