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Fabre Minerals


Mineral Specimens - page 12
South America (excl. Brazil)

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Argentina


Hematite after Magnetite (variety martite)
Hematite after Magnetite (variety martite). Front
Front
Hematite after Magnetite (variety martite). Rear
Rear
 

TG14Q4: Parallel and skeletal growths of octahedral crystals, pseudomorphs after Magnetite, and almost completely covered by a second generation of laminar and bright crystals of Hematite.
Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province  Argentina (2008)

Specimen size: 5.6 × 5.5 × 4.2 cm = 2.2” × 2.2” × 1.7”




Order
Hematite after Magnetite (variety martite)
 

EB26Z1: Sharp doubly terminated crystal pseudomorphous after Magnetite. It is elongated, with very well defined skeletal forms and partially coated by small recrystallized lenticular Hematite crystals.
Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province  Argentina (2008)

Specimen size: 6.6 × 4 × 3.6 cm = 2.6” × 1.6” × 1.4”




Hematite after Magnetite (variety martite). Front
Front
Hematite after Magnetite (variety martite). Rear
Rear
Order
Hematite after Magnetite (variety martite)
Hematite after Magnetite (variety martite). Front
Front
Hematite after Magnetite (variety martite). Side
Side
 

EJ64Z1: Aggregate of Hematite crystals pseudomorphous after Magnetite, with a very sharp octahedral shape, very well defined parallel growths and some of them with skeletal forms.
Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province  Argentina (2008)

Specimen size: 7.2 × 3.8 × 4 cm = 2.8” × 1.5” × 1.6”

Main crystal size: 2.5 × 2 cm = 1.0” × 0.8”




Order
Hematite after Magnetite (variety martite)
 

EQ6Z1: Aggregate of Hematite crystals pseudomorphous after Magnetite, with a very sharp octahedral shape, some of them very elongated and almost completely coated by small lenticular recrystallized Hematite.
Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province  Argentina (2008)

Specimen size: 7.4 × 6.3 × 4.7 cm = 2.9” × 2.5” × 1.9”

Main crystal size: 3.5 × 2.5 cm = 1.4” × 1.0”




Hematite after Magnetite (variety martite). Front
Front
Hematite after Magnetite (variety martite). Rear
Rear
Order
Hematite after Magnetite (variety martite)
Hematite after Magnetite (variety martite). Front
Front
Hematite after Magnetite (variety martite). Rear
Rear
 

EK56Q1: Parallel growths of octahedral crystals, pseudomorphs of Magnetite, some of them unusually elongated and others with very well marked skeletal growths. On the faces of the Hematite a second generation of very bright thin small laminar crystals of the same mineral has formed.
Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province  Argentina (2008)

Specimen size: 7.7 × 7.5 × 5.9 cm = 3.0” × 3.0” × 2.3”

Main crystal size: 5.2 × 2 cm = 2.0” × 0.8”




Order
Hematite after Magnetite (variety martite)
 

EY56Z1: Aggregate of Hematite crystals pseudomorphous after Magnetite, with a very sharp octahedral shape and some of them very elongated and almost completely coated by small lenticular recrystallized Hematite.
Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province  Argentina (2008)

Specimen size: 9.2 × 6.6 × 7.3 cm = 3.6” × 2.6” × 2.9”

Main crystal size: 3.4 × 2.7 cm = 1.3” × 1.1”




Hematite after Magnetite (variety martite). Front
Front
Hematite after Magnetite (variety martite). Rear
Rear
Order
Hematite after Magnetite (variety martite)
Hematite after Magnetite (variety martite). Front
Front
Hematite after Magnetite (variety martite). Rear
Rear
 

EL66Q1: Parallel growths of octahedral crystals, pseudomorphs of Magnetite with very well defined faces and edges. On the faces of the Hematite a second generation of very bright thin small laminar crystals of the same mineral has formed.
Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province  Argentina (2008)

Specimen size: 9.7 × 7.7 × 5.7 cm = 3.8” × 3.0” × 2.2”

Main crystal size: 5 × 4.5 cm = 2.0” × 1.8”




Order
Hematite after Magnetite (variety martite)
 

TA57AI4: Very aerial parallel growth, on matrix, of very sharp Hematite crystals (after octahedral Magnetite) with very well defined skeletal growths, extraordinarily bright and partially coated by small recrystallized lenticular Hematite crystals. The sample is from an area currently defined as a National Park so it is not allowed to collect there any more.
Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province  Argentina (2008)

Specimen size: 10 × 5.6 × 6.2 cm = 3.9” × 2.2” × 2.4”

Main crystal size: 3.8 × 3.2 cm = 1.5” × 1.3”




Hematite after Magnetite (variety martite).
Order
Hematite after Magnetite (variety martite)
Hematite after Magnetite (variety martite). Front
Front
Hematite after Magnetite (variety martite). Rear
Rear
 

TY67Q1: Extraordinarily acute parallel growth of octahedral crystals, pseudomorphs of Magnetite, with very well defined faces and edges and with very well marked skeletal growths. On the faces of the Hematite a second generation of very bright thin small laminar crystals of the same mineral has formed.
Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province  Argentina (2008)

Specimen size: 10.6 × 5.1 × 4 cm = 4.2” × 2.0” × 1.6”

Main crystal size: 3.5 × 2 cm = 1.4” × 0.8”




Order
Rhodochrosite
 

MB87AD9: Botryoidal aggregate with spherulitic nucleus and concentric growths with very well defined color changes, from pale pink to intense red.
Capillitas Mine, Andalgalá Department, Catamarca  Argentina (2015)

Specimen size: 12.4 × 6.8 × 4.3 cm = 4.9” × 2.7” × 1.7”




Rhodochrosite. Rhodochrosite.
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Argentinian Amethyst

Argentina it is not a well know mineralogical country. An Argentinean Quartz quarry's owners carried out work searching for fine Quartz specimens to sell on the mineral market. I have an excellent relationship with him, so I purchased the best of his production. For the moment they are finding huge, doubly terminated, and frequently sceptered Amethyst Quartz. The first generation is milky white Quartz, the second generation is a deep Amethyst colored Quartz. Most of the specimens are floaters and some of them are on matrix too. Size, form and phantom inclusions are very attractive and offer to the mineral world something new that in my opinion it will help to place Argentina on the collector's map.

Doubly terminated Quartz (variety amethyst)
Doubly terminated Quartz (variety amethyst). Front
Front
Doubly terminated Quartz (variety amethyst). Side
Side
 

EV16H2: Doubly terminated floater. The color is deeper at the terminations, whose luster is also more intense than in the other faces. The crystal grew on other small crystals of Quartz (amethyst)
Don Nicolás Mine, Villa Rafael Benegas (Villa Benegas), Mina Clavero, San Alberto Department, Córdoba Province  Argentina (01-06/2002)

Specimen size: 5.2 × 3.3 × 2.8 cm = 2.0” × 1.3” × 1.1”




Order
Doubly terminated Quartz (variety amethyst) scepter
 

EC96G1: Parallel growth of two prismatic, doubly-terminated crystals. They are well developed, of an intense color and simple forms, growing as a scepter on a little matrix of white Quartz.
Don Nicolás Mine, Villa Rafael Benegas (Villa Benegas), Mina Clavero, San Alberto Department, Córdoba Province  Argentina (01-06/2002)

Specimen size: 6.8 × 4.1 × 3 cm = 2.7” × 1.6” × 1.2”

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




Doubly terminated Quartz (variety amethyst) scepter.
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Bolivia


Andorite
Andorite. Front
Front
Andorite. Rear
Rear
 

TF87AF4: Group of crystals with very well defined faces and edges, with a very well defined and fine vertical striation and with a luster that is unusual for the species.
The sample is from the Vallecillo collection, from Madrid.
San José Mine, Oruro City, Cercado Province, Oruro Department  Bolivia

Specimen size: 2 × 1.9 × 1 cm = 0.8” × 0.7” × 0.4”

Main crystal size: 1.6 × 1 cm = 0.6” × 0.4”

Former collection of José Luis Vallecillo




Order

Chile


Brochantite with Quartz (variety chalcedony)
 

MX16AE7: A novelty at Munich 2016. Spray-like aggregates of finely acicular crystals with a very intense silky luster. They are on a rocky matrix with Quartz (chalcedony variety) coatings. The sample is from a formerly poorly known mine.
Los Azules Mine, Quebrada San Miguel, Copiapó Province, Atacama Region  Chile (11-12/2015)

Specimen size: 5.9 × 3.8 × 4.9 cm = 2.3” × 1.5” × 1.9”




Brochantite with Quartz (variety chalcedony). Brochantite with Quartz (variety chalcedony).
Order
Brochantite with Quartz (variety chalcedony)
Brochantite with Quartz (variety chalcedony). Brochantite with Quartz (variety chalcedony).
 

MV56AF0: Radial sprays of delicate acicular crystals of Brochantite with a very intense silky luster in a dense coating with small darker green Atacamite crystals on a rocky matrix with Quartz (variety chalcedony). The sample is from a formerly poorly known mine.
Los Azules Mine, Quebrada San Miguel, Copiapó Province, Atacama Region  Chile (11-12/2015)

Specimen size: 6.3 × 4.5 × 3.1 cm = 2.5” × 1.8” × 1.2”

Chalcedony fluorescent short UV



Order
Brochantite
 

EB48AE3: A novelty at Munich 2016. Until now a poorly known mine, the Brochantite forms sprays of finely acicular crystals with a very intense silky luster and a very vivid color and are on a Quartz (variety chalcedony) matrix.
Los Azules Mine, Quebrada San Miguel, Copiapó Province, Atacama Region  Chile (11-12/2015)

Specimen size: 9.4 × 6.5 × 6.9 cm = 3.7” × 2.6” × 2.7”




Brochantite. Brochantite.
Brochantite.
Order

Colombia


Gold with Sphalerite
Gold with Sphalerite. Gold with Sphalerite.
 

EP68AH1: Very aerial laminar Gold growth, on a rocky matrix with black Sphalerite crystals and aggregates of micro-crystalline Quartz. The sample is from a not yet well-known Colombian mining area.
Los Delirios claim, Delirios III cut, Municipio Vetas, Soto Province, Santander Department  Colombia (02/2017)

Specimen size: 2.3 × 1.4 × 1.2 cm = 0.9” × 0.6” × 0.5”

Main crystal size: 1 × 0.4 cm = 0.4” × 0.2”




Order
Gold with Quartz
 

EK28AF9: A very rich native Gold surfaces with platy growths that are very bright and are on a Quartz matrix. The sample is from a not yet well-known Colombian mining area.
Real Minera claim, Las Arañas cut, Municipio Vetas, Soto Province, Santander Department  Colombia

Specimen size: 3 × 2.4 × 2.2 cm = 1.2” × 0.9” × 0.9”

Main crystal size: 0.2 × 0.1 cm = 0.1” × 0.0”




Gold with Quartz. Gold with Quartz.
Order
Gold with Quartz
Gold with Quartz. Gold with Quartz.
Gold with Quartz.
 

MA97AI0: A surface very rich with flat leafy Gold growths, with some acicular Gold crystals, on a rock matrix partially coated by micro-crystalline Quartz. The sample is from a not yet well-known Colombian mining area and, due its quality and good color and luster, we believe it is one of the best found there.
The specimen has been reviewed, photographed and published in the magazine ‘‘Mineral Up’’ on page 35 of the 2018/02 edition.

Los Delirios claim, Delirios III cut, Municipio Vetas, Soto Province, Santander Department  Colombia (01/2018)

Specimen size: 3.3 × 3 × 2.1 cm = 1.3” × 1.2” × 0.8”

Main crystal size: 0.7 × 0.2 cm = 0.3” × 0.1”




Order
Gold
 

EM76AH2: Dendritic growth, on a rocky matrix, of very sharp cubo-octahedral crystals with very well defined hoppered growths on some of the octahedron faces. The sample is from a not yet well-known Colombian mining area.
Potosí claim, La Tosca cut, Municipio Vetas, Soto Province, Santander Department  Colombia

Specimen size: 4.3 × 1.6 × 1.4 cm = 1.7” × 0.6” × 0.6”

Main crystal size: 0.4 × 0.3 cm = 0.2” × 0.1”

Weight: 6.6 grams



Gold. Front
Front
Gold. Rear
Rear
Gold.
Order