50 Years proposing Minerals (25 online)

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Carles Curto Text: Carles Curto (formerly curator of the Geology Museum, Barcelona) & Jordi Fabre
Alfredo Petrov Translation: Alfredo Petrov
Assistance from John S. White (former Smithsonian curator) John S. White


MOROCCO

Gold (spinel twin) with Quartz
Gold (spinel twin) with Quartz. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Gold (spinel twin) with Quartz. Rear / Photo: Joaquim Callén
Rear / Photo: Joaquim Callén

Fluorescent light (daylight)
 

TMP102AN5: A recent find in 2021 has provided these elegant Gold specimens. The piece shows excellent crystallization, with the dominant forms of the octahedron in highly stylized parallel growths and with the distinct twinning according to the spinel law, and a little bit of Quartz matrix. The material has been carefully analyzed and we will send a copy of the analysis to the buyer.
Aouint Ighoman, Assa-Zag Province, Guelmim-Oued Noun Region  Morocco (01/2021)

Specimen size: 2 × 0.9 × 0.3 cm = 0.79” × 0.35” × 0.12”

With analysis copy

Weight: 0.9 grams



Gold on Quartz

Fluorescent light (daylight)
 

TPF51AN5: A recent find in 2021 yielded these elegant Gold specimens. This piece shows good crystallization and, above all, is on matrix, which until now has been extremely rare. The material has been carefully analyzed and we will send a copy of the analysis to the buyer.
Aouint Ighoman, Assa-Zag Province, Guelmim-Oued Noun Region  Morocco (01/2021)

Specimen size: 1.8 × 1.7 × 0.9 cm = 0.71” × 0.67” × 0.35”

Main crystal size: 1.8 × 0.7 cm = 0.71” × 0.28”

With analysis copy



Gold on Quartz. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Gold on Quartz. Rear / Photo: Joaquim Callén
Rear / Photo: Joaquim Callén
Gold on Quartz
Gold on Quartz. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Gold on Quartz. Rear / Photo: Joaquim Callén
Rear / Photo: Joaquim Callén
Gold on Quartz.

Fluorescent light (daylight)
 

TFG94AN5: A recent find in 2021 yielded these elegant Gold specimens. This piece shows good crystallization and, above all, is on matrix, which until now has been extremely rare. The material has been carefully analyzed and we will send a copy of the analysis to the buyer.
Aouint Ighoman, Assa-Zag Province, Guelmim-Oued Noun Region  Morocco (01/2021)

Specimen size: 2.7 × 1.8 × 1.9 cm = 1.06” × 0.71” × 0.75”

Main crystal size: 0.4 × 0.2 cm = 0.16” × 0.08”

With analysis copy



Gold on Quartz

Fluorescent light (daylight)
 

TGJ16AN5: A recent find in 2021 yielded these elegant Gold specimens. This piece shows good crystallization and, above all, is on matrix, which until now has been extremely rare. The material has been carefully analyzed and we will send a copy of the analysis to the buyer.
Aouint Ighoman, Assa-Zag Province, Guelmim-Oued Noun Region  Morocco (01/2021)

Specimen size: 4 × 2.5 × 1.8 cm = 1.57” × 0.98” × 0.71”

Main crystal size: 1.1 × 0.8 cm = 0.43” × 0.31”

With analysis copy



Gold on Quartz. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Gold on Quartz. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén
Gold on Quartz
Gold on Quartz. Gold on Quartz.

Fluorescent light (daylight)
 

TTV87AN5: A recent find in 2021 yielded these elegant Gold specimens. This piece shows good crystallization and, above all, is on matrix, which until now has been extremely rare. The material has been carefully analyzed and we will send a copy of the analysis to the buyer.
Aouint Ighoman, Assa-Zag Province, Guelmim-Oued Noun Region  Morocco (01/2021)

Specimen size: 4.4 × 3.4 × 2 cm = 1.73” × 1.34” × 0.79”

Main crystal size: 0.8 × 0.3 cm = 0.31” × 0.12”

With analysis copy



Gold on Quartz

Fluorescent light (daylight)
 

TMB51AN5: A recent find in 2021 yielded these elegant Gold specimens. This piece shows good crystallization and, above all, is on matrix, which until now has been extremely rare. The material has been carefully analyzed and we will send a copy of the analysis to the buyer.
Aouint Ighoman, Assa-Zag Province, Guelmim-Oued Noun Region  Morocco (01/2021)

Specimen size: 4.4 × 3.7 × 2.5 cm = 1.73” × 1.46” × 0.98”

Main crystal size: 1 × 0.6 cm = 0.39” × 0.24”

With analysis copy



Gold on Quartz. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Gold on Quartz. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén
Gold with Quartz and Pyrite
Gold with Quartz and Pyrite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Gold with Quartz and Pyrite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén
Gold with Quartz and Pyrite.

Fluorescent light (daylight)
 

TGH27AN5: A recent find in 2021 yielded these elegant Gold specimens. This piece shows excellent crystallization, with the dominant forms of the octahedron in highly stylized parallel growths and with distinct twinning according to the spinel law, but, above all, it is in a Quartz matrix with coatings of small Pyrite crystals, which until now has been extremely rare. The material has been carefully analyzed and we will send a copy of the analysis to the buyer.
Aouint Ighoman, Assa-Zag Province, Guelmim-Oued Noun Region  Morocco (01/2021)

Specimen size: 5 × 4.7 × 3 cm = 1.97” × 1.85” × 1.18”

Main crystal size: 1.6 × 0.3 cm = 0.63” × 0.12”

With analysis copy



Vanadinite (variety arsenic-bearing vanadinite) with Mottramite

Fluorescent light (daylight)
 

ERC27AN5: Druse, on matrix, of slightly arsenical elongated Vanadinite crystals with curvatures, many of them doubly terminated, lustrous and of a lighter color than usual in this type of specimen, with black Mottramite coatings. The Mottramite was analyzed and we will send a copy of the analysis to the buyer. The piece comes from Touissit's past, and has a very high quality even compared to other specimens from those glorious times.
Touissit, Touissit District, Jerada Province, Oriental Region  Morocco (±1990)

Specimen size: 4.2 × 3.8 × 3 cm = 1.65” × 1.50” × 1.18”

Main crystal size: 2.6 × 1.5 cm = 1.02” × 0.59”




Vanadinite (variety arsenic-bearing vanadinite) with Mottramite.

SOUTH AMERICA (excl. Brazil)

Augelite with Quartz
Augelite with Quartz. Augelite with Quartz.

Fluorescent light (daylight)
 

TFM53AN5: Very sharp isolated crystals of Augelite with very sharp crystal forms, translucent, with good luster and an intense light green color. They are implanted on a matrix with fine transparent Quartz crystals.
Tamboras Mine, Mundo Nuevo, Huamachuco, Sánchez Carrión Province, La Libertad Department  Peru

Specimen size: 8.7 × 5.7 × 4.4 cm = 3.43” × 2.24” × 1.73”

Main crystal size: 1.5 × 1.1 cm = 0.59” × 0.43”





CHINA

Fluorite with Calcite and Gypsum

Fluorescent light (daylight)
 

TMB26AN5: Fluorite crystals, very sharp and extraordinarily lustrous, covering a group of scalenohedral Calcite crystals, and all partially covered by thin layers of Gypsum. The specimen has been thoroughly analyzed and no traces of Yttrium were found. We will send a copy of the analysis to the buyer.
Qinglong Mine, Dachang, Qinglong, Qianxi'nan Autonomous Prefecture, Guizhou Province  China (2021)

Specimen size: 3.8 × 3.6 × 1.9 cm = 1.50” × 1.42” × 0.75”

Calcite fluorescent long & short UV

With analysis copy



Fluorite with Calcite and Gypsum. Front
Front
Fluorite with Calcite and Gypsum. Rear
Rear
Fluorite with Calcite and Gypsum
Fluorite with Calcite and Gypsum. Front
Front
Fluorite with Calcite and Gypsum. Rear
Rear

Fluorescent light (daylight)
 

TFB46AN5: Fluorite crystals, very sharp and extraordinarily lustrous, covering a group of scalenohedral Calcite crystals, and all partially covered by thin layers of Gypsum. The specimen has been thoroughly analyzed and no traces of Yttrium were found. We will send a copy of the analysis to the buyer.
Qinglong Mine, Dachang, Qinglong, Qianxi'nan Autonomous Prefecture, Guizhou Province  China (2021)

Specimen size: 4.7 × 3 × 2.4 cm = 1.85” × 1.18” × 0.94”

Calcite fluorescent long & short UV

With analysis copy



Veszelyite with Cuprodongchuanite and Hemimorphite

Fluorescent light (daylight)
 

TMA96AN5: Veszelyite crystals isolated or in small groups, very sharp, of extraordinary quality for the species and very similar to the famous ones from the Black Pine mine but even more intense in color. They are translucent, lustrous and deep blue, and on a matrix with green Cuprodongchuanite and white Hemimorphite. Only a few specimens of this type were uncovered during the finds of the year 2021.
Sanguozhuang, Dongchuan District, Kunming Prefecture, Yunnan Province  China (2021)

Specimen size: 4.4 × 3.3 × 2.7 cm = 1.73” × 1.30” × 1.06”

Main crystal size: 0.9 × 0.4 cm = 0.35” × 0.16”




Veszelyite with Cuprodongchuanite and Hemimorphite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Veszelyite with Cuprodongchuanite and Hemimorphite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén
Veszelyite with Hemimorphite
Veszelyite with Hemimorphite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Veszelyite with Hemimorphite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén

Fluorescent light (daylight)
 

TPD70AN5: Veszelyite crystals isolated or in small groups, very sharp, of extraordinary quality for the species and very similar to the famous ones from the Black Pine mine but even more intense in color. They are translucent, lustrous and deep blue, and on a matrix with white Hemimorphite. Only a few specimens of this type were uncovered during the finds of the year 2021.
Sanguozhuang, Dongchuan District, Kunming Prefecture, Yunnan Province  China (2021)

Specimen size: 4.4 × 3.7 × 4.1 cm = 1.73” × 1.46” × 1.61”

Main crystal size: 0.6 × 0.5 cm = 0.24” × 0.20”





ASIA (excl. China)

Fluorite with Muscovite

Fluorescent light (daylight)
 

ERJ92AN5: Group of Fluorite crystals, basically octahedral in habit but also with smooth cube faces along with the octahedral faces (and other crystallographic forms) incorporating very extensive and easily visible fine polycrystalline growths. The crystals are large, transparent, with very bright luster and an intense and uniform pink color, on a matrix of very sharp lamellar crystals of Muscovite. Exceptional.
Chumar Bakhoor, Hunza Valley, Nagar District, Gilgit-Baltistan (Northern Areas)  Pakistan (2019)

Specimen size: 13.4 × 9.3 × 8.8 cm = 5.28” × 3.66” × 3.46”

Main crystal size: 9.3 × 6.8 cm = 3.66” × 2.68”

Fluorescent long & short UV



Fluorite with Muscovite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Fluorite with Muscovite. Side / Photo: Joaquim Callén
Side / Photo: Joaquim Callén
Fluorite with Muscovite. Top / Photo: Joaquim Callén
Top / Photo: Joaquim Callén
Fluorite with Muscovite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén


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