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EY37AC1: Volborthite
Volborthite was the new sensation in the Tucson Show 2015 as well as in Ste. Marie, but the number of them seems to be somewhat limited.
The Milpillas ones are without doubt the world's best for their luster, shape, good contrast with the white clay matrix and the crystal size of the best ones, so all together these are a new standard for this species. We are proud to offer this one which has a very reasonable balance quality / price.
This specimen was published on the Mineralogical Record´s web page, in the ‘What’s New in the Mineral World?’ section, report #41, August 22, 2015 edition, page 8
Milpillas Mine, level 26, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (04/2015)
Specimen size: 1.5 × 1.1 × 0.6 cm = 0.59” × 0.43” × 0.24”
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EC67AC1: Volborthite
Volborthite was the new sensation in the Tucson Show 2015 as well as in Ste. Marie, but the number of them seems to be somewhat limited.
The Milpillas ones are without doubt the world's best for their luster, shape, good contrast with the white clay matrix and the crystal size of the best ones, so all together these are a new standard for this species. We are proud to offer this one which has a very reasonable balance quality / price.
This specimen has been reviewed and published in the special "Milpillas" of the magazine ‘Lapis’ number 07-08/2017, page 37
Milpillas Mine, level 26, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (04/2015)
Specimen size: 3.2 × 2.9 × 1.9 cm = 1.26” × 1.14” × 0.75”

Main crystal size: 1.1 × 0.5 cm = 0.43” × 0.20”
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TV68AE9: Volborthite
Rosette aggregate, on matrix, of flattened and very well defined crystals that are bright with a deep green color. The Milpillas Volborthite samples are probably the world's best for their quality, luster, and crystal size, and they are considered a new standard for this species. An excellent thumbnail.
This specimen has been reviewed and published in the special "Milpillas" of the magazine ‘Lapis’ number 07-08/2017, page 38
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2015)
Specimen size: 1 × 0.9 × 0.8 cm = 0.39” × 0.35” × 0.31”
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TD89AG1: Volborthite
Not all Volborthites are expensive! This group of crystals with a color change on top is not bad at all. The change of color, which may look like a break, makes its price reasonable.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2015)
Specimen size: 4.3 × 4.2 × 2.3 cm = 1.69” × 1.65” × 0.91”

Main crystal size: 1.7 × 1 cm = 0.67” × 0.39”
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TC93AJ4: Volborthite
Very aerial group of sharp flattened crystals that are very bright and with a deep green color. The Milpillas Volborthites are without doubt the world's best for their luster, shape, good contrast with the white clay matrix and crystal size, so all together these are a new standard for this species.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2015)
Specimen size: 3.2 × 3 × 1.5 cm = 1.26” × 1.18” × 0.59”
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TJ86AK3: Volborthite
Rosette of sharp, flattened, bright Volborthite crystals, deep olive-green, with a little matrix on the back. The specimens of Volborthite from Milpillas are considered the best of the species for their quality, luster and crystal size, setting a new standard for the species. An excellent miniature of great quality.
Milpillas Mine, level 26, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (04/2015)
Specimen size: 2.7 × 2.2 × 1.3 ×  cm = 1.06” × 0.87” × 0.51”
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TB92AF5: Volborthite
Rosette growths on matrix of flattened Volborthite crystals that are well defined, bright with a deep green color. The Milpillas Volborthite samples are considered among the world's best for their quality, luster, and crystal size, and they are a new standard for this species. Furthermore, this particular sample is from the selected group of the best Volborthites found there.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2015)
Specimen size: 6.7 × 3.9 × 2.7 cm = 2.64” × 1.54” × 1.06”
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XM110EL: Volborthite on Dickite
Groups of acicular crystals of Volborthite with a deep olive-green color on a Dickite matrix. The Milpillas Volborthite specimens are considered the best of the species due to their quality, luster and crystal size, and set a new standard for the species. An excellent miniature of great quality.
Milpillas Mine, level 26, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (04/2015)
Specimen size: 2.1 × 1.2 × 0.4 cm = 0.83” × 0.47” × 0.16”
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XM145TC: Volborthite on Dickite
Groups of Volborthite crystals with two different morphologies: acicular and flattened. The very lustrous and deep olive-green crystals sit on a Dickite matrix. Milpillas Volborthite specimens are considered the best of the species due to their quality, luster and crystal size, and set a new standard for the species.
Milpillas Mine, level 26, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (04/2015)
Specimen size: 3 × 2.2 × 2.1 cm = 1.18” × 0.87” × 0.83”
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TE67AJ2: Volborthite with Azurite
Rosette aggregate of flattened and very well defined Volborthite crystals that are bright with a deep olive green color. With a very sharp, doubly terminated Azurite crystal on the Volborthite that we must consider a rarity. The Milpillas Volborthite samples are probably the world's best for their quality, luster, and crystal size, and they are considered a new standard for this species. An excellent miniature, different from other well-known Volborthites.
The sample has been noted and photographed in the monograph 'The Milpillas Mine' of the ‘Mineralogical Record‘ magazine on page 620 in the volume 52, number 5, September-October 2021
Milpillas Mine, level 26, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (04/2015)
Specimen size: 3 × 2.2 × 1.9 cm = 1.18” × 0.87” × 0.75”

Main crystal size: 1 × 0.3 cm = 0.39” × 0.12”
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EF67AE4: Volborthite with Azurite and Malachite
Flattened rosette-like aggregates of very large (for the species) Volborthite crystals. They have a uniform deep green color and are with translucent and bright Azurite crystals and small spherical Malachite aggregates. A miniature of special quality.
Milpillas Mine, level 1280, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2014)
Specimen size: 3.4 × 3 × 2.7 cm = 1.34” × 1.18” × 1.06”
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TX66AE8: Volborthite with Brochantite
Very aerial aggregate of unusually sharp, isolated and complete Volborthite crystals. They have very well defined forms, are bright, have a deep green color and are on matrix, with fibrous Brochantite aggregates.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2015)
Specimen size: 3.1 × 1.9 × 1.5 cm = 1.22” × 0.75” × 0.59”

Main crystal size: 1.8 × 0.9 cm = 0.71” × 0.35”
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EV67AC1: Volborthite with Malachite
Volborthite was the new sensation in the Tucson Show 2015 as well as in Ste. Marie, but the number of them seems to be somewhat limited.
The Milpillas ones are without doubt the world's best for their luster, shape, good contrast with the white clay matrix and the crystal size of the best ones, so all together these are a new standard for this species. We are proud to offer this one which has a very reasonable balance quality / price.
Milpillas Mine, level 26, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (04/2015)
Specimen size: 1.3 × 1 × 0.9 cm = 0.51” × 0.39” × 0.35”
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TC67AB3: Volborthite with Malachite
A novelty at Tucson 2015. Big and thick Volborthite crystal with deep olive-green color with yellowish shades, partially coated by aggregates of small acicular crystal of the same Volborthite. It is on Malachite, and on matrix. Due to the size and the definition of the crystal this sample has an extraordinary quality for the species, a rare copper vanadate. In fact, we are not aware of better Volborthite than those found at the Milpillas mine.
The sample has been analyzed and we will send a copy of the analysis to the buyer.
The specimen has been photographed and published in the magazine ‘Mineral Up’ number 01/2015, page 43
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2014)
Specimen size: 2.3 × 1.5 × 1.6 cm = 0.91” × 0.59” × 0.63”

Main crystal size: 1.4 × 1 cm = 0.55” × 0.39”
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TR13AG1: Volborthite with Malachite, Azurite and Dickite
The Volborthites of Milpillas are among the most spectacular discoveries that have happened in the mineral world in recent years. In general they are of an enormous quality and in aspects this great rosette of crystals with Malachite and on matrix stands out among all others. If someone wants a definitive piece, here it is.
The specimen has been reviewed, photographed and published in the magazine ‘Mineral Up’ on page 69 of the 2017/01 edition
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2015)
Specimen size: 4.9 × 3.5 × 2.2 cm = 1.93” × 1.38” × 0.87”
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MA48AA7: Wardite
Aggregate of very sharp dipyramidal crystals, translucent and bright, with a pale green color and a considerable size for the species.
Stoneman Camp, Young's Creek, Dawson mining district, Yukon Territory  Canada (07/1995)
Specimen size: 4.2 × 2.6 × 1.6 cm = 1.65” × 1.02” × 0.63”

Main crystal size: 1.8 × 1.7 cm = 0.71” × 0.67”
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HM90MA: Wardite coated by Childrenite
Group on matrix of very sharp Wardite crystals, with well defined faces and edges and covered by a thin layer of Childrenite microcrystals.
Stoneman Camp, Young's Creek, Dawson mining district, Yukon Territory  Canada (07/1996)
Specimen size: 6.7 × 4.3 × 2.7 cm = 2.64” × 1.69” × 1.06”
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MA14AM2: Wardite with Childrenite
Very sharp dipyramidal Wardite crystal, of considerable size for the species, with very well defined faces and edges, translucent, lustrous, with a very pale green color and with brown inclusions of Childrenite.
Stoneman Mountain, Rapid Creek, Dawson mining district, Yukon Territory  Canada (07/1995)
Specimen size: 2.4 × 1.8 × 1.7 cm = 0.94” × 0.71” × 0.67”

Main crystal size: 2.1 × 2.1 cm = 0.83” × 0.83”
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MA14AL4: Wardite with Childrenite
Clusters of very sharp Wardite crystals with a dipyramidal habit, translucent with transparent points, from white to pale green. On matrix, with coatings of small Childrenite crystals with an intense brown color.
Rapid Creek area, Dawson mining district, Yukon Territory  Canada (07/1995)
Specimen size: 5.2 × 3.7 × 2.8 cm = 2.05” × 1.46” × 1.10”
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MC14AI4: Wardite with Childrenite
Two dipyramidal crystals on matrix, very aerial and sharp, translucent with a pale green color and with some faces partially coated by microcrystals of Childrenite.
Stoneman Camp, Young's Creek, Dawson mining district, Yukon Territory  Canada (07/1995)
Specimen size: 4.7 × 2.5 × 2.7 cm = 1.85” × 0.98” × 1.06”

Main crystal size: 1.4 × 1.2 cm = 0.55” × 0.47”
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MBB56AO1: Wardite with Childrenite
Very sharp Wardite crystals, with a dipyramidal shape, translucent, on matrix and with some of their faces partially covered by small Childrenite crystals.
Stoneman Mountain, Rapid Creek, Dawson mining district, Yukon Territory  Canada (07/1995)
Specimen size: 5 × 3.7 × 2.4 cm = 1.97” × 1.46” × 0.94”
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SM180MBP: Wardite with Childrenite
Very sharp Wardite crystals with a bipyramidal habit, translucent and with transparent vertices, white to pale green in color. On matrix, with coatings of small Childrenite crystals with an intense cream color.
Stoneman Mountain, Rapid Creek, Dawson mining district, Yukon Territory  Canada (07/1995)
Specimen size: 6.3 × 6.2 × 2.4 cm = 2.48” × 2.44” × 0.94”

Main crystal size: 1.2 × 1.2 cm = 0.47” × 0.47”
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ME86AL6: Wardite with Childrenite
Sharp bipyramidal Wardite crystals, ivory-white to very pale yellow, with slightly greenish tones, on matrix, with small Childrenite crystals.
Stoneman Camp, Young's Creek, Dawson mining district, Yukon Territory  Canada (07/1995)
Specimen size: 6.2 × 5.7 × 4 cm = 2.44” × 2.24” × 1.57”
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SM90MB: Wardite with Childrenite
Dipyramidal Wardite crystals, very well defined, very pale yellow color with greenish tones. On matrix, with Childrenite crystals.
Stoneman Camp, Young's Creek, Dawson mining district, Yukon Territory  Canada
Specimen size: 7.7 × 4.3 × 2.3 cm cm = 3.03” × 1.69” × 0.91”

Main crystal size: 1.2 × 1.1 cm cm = 0.47” × 0.43”
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MD56AB1: Wardite with Childrenite
Two dipyramidal crystals on matrix, very aerial and sharp, translucent, with a pale green color and with some faces partially coated by microcrystals of Childrenite.
Stoneman Camp, Young's Creek, Dawson mining district, Yukon Territory  Canada (07/1995)
Specimen size: 3.8 × 3.2 × 3 cm = 1.50” × 1.26” × 1.18”

12641 results found. 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