August 2020 Update

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


USA

Baryte
Baryte. Front
Front
Baryte. Side
Side
 

TV96AL7: Group of crystals, one of them clearly dominant, very rich in faces and perfect sharp terminations. Shiny and extremely transparent. We will send the specimen, from a classic American locality for the species, in its original Perky box from the Robert J. Noble collection, which also contains the label, where it is stated that it had previously been in the “Bunk” Melanson collection.
Book Cliffs area, Grand Junction, Mesa County, Colorado  USA

Specimen size: 2.6 × 2.5 × 1.4 cm = 1.02” × 0.98” × 0.55”

Main crystal size: 2.1 × 1.8 cm = 0.83” × 0.71”

Former collection of Bob Noble



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MEXICO

Creedite with Fluorite
 

TE16AL7: A novelty at Tucson 2020. Druse of bipyramidal Creedite crystals with sharp pointed terminations, between transparent and translucent, lustrous, and with a light violet color. On matrix with crystallized green and violet Fluorite. This specimen is quite different from the others known from this locality in recent years, although some old collection have similar specimens from the same place, which coincides with the indications that this find was made in old mine galleries.
The specimen has been reviewed, photographed and published as a new discovery in the magazine ‘Mineralogical Record’ on page 494 in the volume 51, number 3, May-June 2020
Navidad Mine, Abasolo, Rodeo, Municipio de Rodeo, Durango  Mexico (10-12/2019)

Specimen size: 7.2 × 6.6 × 4.9 cm = 2.83” × 2.60” × 1.93”

Main crystal size: 0.6 × 0.3 cm = 0.24” × 0.12”




Creedite with Fluorite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Creedite with Fluorite. Rear / Photo: Joaquim Callén
Rear / Photo: Joaquim Callén
Creedite with Fluorite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén
Order
Creedite
Creedite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Creedite. Rear / Photo: Joaquim Callén
Rear / Photo: Joaquim Callén
Creedite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén

Recorded under LED light
 

TB27AL7: A novelty at Tucson 2020: Druse, on matrix, of bipyramidal Creedite crystals, some of them doubly terminated, with sharp pointed terminations, between transparent and translucent, lustrous, and light violet in color. The specimen is quite different from those known from this locality in recent years, although in some old collections there are similar specimens from the same source, which coincides with the indications that this find was made in old galleries of the mine.
The specimen has been reviewed, photographed and published as a new discovery in the magazine ‘Mineral Up’ on page 43 of the 2020/02 edition.
Navidad Mine, Abasolo, Rodeo, Municipio de Rodeo, Durango  Mexico (10-12/2019)

Specimen size: 8.6 × 6.2 × 5.5 cm = 3.39” × 2.44” × 2.17”

Main crystal size: 0.6 × 0.3 cm = 0.24” × 0.12”




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Malachite

Recorded under LED light
 

TE27AL7: Arborescent groups on matrix of primary Malachite crystals between acicular and fibrous, with a silky luster and color changes from bright green to darker green. A different kind of specimen from what is usual from the locality.
Milpillas Mine, level 1100, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (01/2020)

Specimen size: 9.6 × 7.1 × 8.2 cm = 3.78” × 2.80” × 3.23”

Main crystal size: 3.5 × 3.3 cm = 1.38” × 1.30”




Malachite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Malachite. Side / Photo: Joaquim Callén
Side / Photo: Joaquim Callén
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SPAIN

Sphalerite with Quartz
Sphalerite with Quartz. Front
Front
Sphalerite with Quartz. Side
Side
Sphalerite with Quartz.
 

NM27AL7: Complex Sphalerite crystal twinned and translucent with good luster and a dominant toasted honey color. On a matrix of Quartz crystals. Sphalerite is a rarity in the otherwise prolific La Viesca Mine.
This aesthetic specimen comes from the Miguel David Martínez collection (nº. 433), whose label we will send to the buyer.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Asturias, Principality of Asturias  Spain (2016)

Specimen size: 8 × 4.1 × 2.8 cm = 3.15” × 1.61” × 1.10”

Main crystal size: 2 × 1.8 cm = 0.79” × 0.71”

Former collection of Miguel David Martínez



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FRANCE

Pyrite with Baryte and Siderite
 

EG14AL7: Cubic Pyrite crystals with curious stepped projections on the edges, on a group of outstanding tabular Baryte crystals partially covered with small white Siderite crystals with the so-called “saddle” habit.
Rivet Quarry, Peyrebrune area, Montredon-Labessonnié, Le Haut Dadou, Castres, Tarn, Occitanie  France (11/2018)

Specimen size: 4.2 × 3.6 × 2.6 cm = 1.65” × 1.42” × 1.02”

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




Pyrite with Baryte and Siderite. Front
Front
Pyrite with Baryte and Siderite. Side
Side
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EUROPE (excl. Spain, Portugal and France)

Almandine with Muscovite and Quartz
Almandine with Muscovite and Quartz. Front
Front
Almandine with Muscovite and Quartz. Rear
Rear
 

MF27AL7: Very well defined dodecahedral crystals, one of them clearly dominant, lustrous, brown with reddish tones. The crystals, on a Muscovite-rich metamorphic rock matrix, contrary to common practice, are neither glued nor do they have their faces retouched or polished, preserving the natural surface. It is an old piece and comes from the José Navarrete collection.
Ziller Valley (Zillertal), North Tyrol, Tyrol/Tirol  Austria

Specimen size: 10.4 × 6.1 × 4.8 cm = 4.09” × 2.40” × 1.89”

Main crystal size: 6 × 5.4 cm = 2.36” × 2.13”




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FSU

Tremolite

Recorded under LED light
Tremolite
 

TR37AL7: Flattened crystal between translucent and transparent with a fibrous appearance and a pearly luster and with curious very aerial polycrystalline recrystallizations. The specimen, of great quality for the species, comes from the prestigious Rock Currier collection (No. 6722), whose label we will send to the buyer.
Pamir Mountains, Viloyati Mukhtori Gorno-Badakhshan  Tajikistan

Specimen size: 10.3 × 2.3 × 0.8 cm = 4.06” × 0.91” × 0.31”

Fluorescence short UV & minor fluorescence long UV

Former collection of Rock Currier



Tremolite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Tremolite. Rear / Photo: Joaquim Callén
Rear / Photo: Joaquim Callén
Tremolite. Top / Photo: Joaquim Callén
Top / Photo: Joaquim Callén
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AFRICA (excl. Morocco)

Andradite (variety demantoid) with Calcite
Andradite (variety demantoid) with Calcite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Andradite (variety demantoid) with Calcite. Top / Photo: Joaquim Callén
Top / Photo: Joaquim Callén
Andradite (variety demantoid) with Calcite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén
 

MA27AL7: Andradite crystals (demantoid variety) of good size and with a balance between trapezohedron and rhombododecahedron faces. Between transparent and translucent, with good luster and a very intense and uniform green color. On matrix, with aggregates of small Calcite crystals.
Antetezambato outcrop, Antetezambato, Maherivaratra Commune, Ambanja District, Antsiranana Province  Madagascar (2010)

Specimen size: 6.6 × 5.4 × 4.7 cm = 2.60” × 2.13” × 1.85”

Main crystal size: 1.7 × 1.1 cm = 0.67” × 0.43”




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BRAZIL

Elbaite
 

TP47AL7: Transparent Elbaite crystal with good luster and a uniform lilac color. We will send the specimen, from a classic Brazilian locality, in its original Perky box from the Robert J. Noble collection, which also contains the label, stating that it was previously in the Sullivan collection.
Virgem da Lapa, Jequitinhonha, Minas Gerais  Brazil

Specimen size: 3 × 0.6 × 0.5 cm = 1.18” × 0.24” × 0.20”

Former collection of Bob Noble



Elbaite. Elbaite.
Order

CHINA

Hematite (variety iron rose) with Quartz
Hematite (variety iron rose) with Quartz. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Hematite (variety iron rose) with Quartz. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén
Hematite (variety iron rose) with Quartz. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén
 

TD53AL7: Rosette-like growths of very flattened sharp lenticular Hematite crystals with good luster and on a matrix of Quartz crystals. A modern classic which is now scarce due to the disappearance of the locality where they used to be found.
Jinlong Hill, Longchuan, Heyuan Prefecture, Guangdong Province  China

Specimen size: 18.1 × 10.2 × 7.3 cm = 7.13” × 4.02” × 2.87”




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THE JAN BUMA FLUORITE COLLECTION

Fluorite with Dolomite
 

FQ68AL7: Clusters of very sharp and shiny Fluorite crystals, sky-blue in color with distinct phantoms and covered with small white Dolomite rhombohedra that also appear as inclusions inside some of the Fluorite crystals.
The specimen comes from the Jan Buma collection (number 070403), whose base with the locality and the collection number we will send to the buyer but not the usual Jan Buma collection card, since in this case we do not have it.
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province  China

Specimen size: 12.3 × 6 × 8 cm = 4.84” × 2.36” × 3.15”

Main crystal size: 1.7 × 1.5 cm = 0.67” × 0.59”

Former Jan Buma collection. Number 070403



Fluorite with Dolomite. Front
Front
Fluorite with Dolomite. Side
Side
Fluorite with Dolomite.
Order


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