December 2021 Update

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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


BOB NOBLE THUMBNAIL COLLECTION

Hematite
Hematite. Front
Front
Hematite. Front
Front
Hematite. Side
Side
 

TZM63AN8: A complex floater crystal of Hematite, very rich in crystal forms and extraordinarily shiny.
We will ship the specimen in its original Perky box from the Robert J. (Bob) Noble collection, which also contains the label.
N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa

Specimen size: 2 × 1.7 × 1.2 cm = 0.79” × 0.67” × 0.47”

Former collection of Bob Noble



Order

SPANISH FLUORITE

Fluorite with Baryte

Recorded under neon light
 

NFT89AN8: Group of very sharp Fluorite crystals, between transparent and translucent, with good luster and an intense, deep and uniform violet color, with small white lamellar coatings of Baryte and with preferential growth orientations.
This specimen, of excellent quality for the locality, comes from the collection of Miguel David Martínez (number 798), whose label we will send to the buyer.
Berbes mining area, Berbes, Ribadesella, Comarca Oriente, Asturias, Principality of Asturias  Spain (2004)

Specimen size: 11.2 × 6.2 × 5 cm = 4.41” × 2.44” × 1.97”

Main crystal size: 3.2 × 2.8 cm = 1.26” × 1.10”

Former collection of Miguel David Martínez



Fluorite with Baryte. Front
Front
Fluorite with Baryte. Light behind
Light behind
Fluorite with Baryte.
Order

MOROCCO

Pyrite with Quartz
Pyrite with Quartz. Front
Front
Pyrite with Quartz. Side
Side

Recorded under neon light
 

MLH13AN8: Polycrystalline growth of Pyrite crystals with cubic habit, very lustrous and with partial coatings of small white Quartz crystals.
Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region  Morocco (07/2020)

Specimen size: 3.1 × 2.8 × 2.1 cm = 1.22” × 1.10” × 0.83”

Main crystal size: 2.9 × 2.7 cm = 1.14” × 1.06”




Order
Pyrite perimorphic of Baryte

Recorded under neon light
 

MMA11AN8: A novelty from Morocco, from a discovery in the summer of 2020. White tabular crystals of Baryte partially covered by a perimorphic growth of a mosaic of small, very bright, cubic and octahedral Pyrite crystals.
Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region  Morocco (07/2020)

Specimen size: 4.5 × 3.4 × 2.5 cm = 1.77” × 1.34” × 0.98”




Pyrite perimorphic of Baryte. Front
Front
Pyrite perimorphic of Baryte. Rear
Rear
Order
Pyrite perimorphic of Baryte with Quartz
Pyrite perimorphic of Baryte with Quartz. Front
Front
Pyrite perimorphic of Baryte with Quartz. Side
Side

Recorded under neon light
 

MCX96AN8: A novelty from Morocco, from a discovery in the summer of 2020. Polycrystalline growth of a mosaic of perimorphic Pyrite crystals with bright luster, on a tabular Baryte crystal, on a matrix of white Quartz crystals partially covered by Pyrite.
Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region  Morocco (07/2020)

Specimen size: 7.6 × 6.4 × 4.3 cm = 2.99” × 2.52” × 1.69”

Main crystal size: 3.5 × 3 cm = 1.38” × 1.18”




Order
Pyrite perimorphic of Baryte

Recorded under neon light
 

MLM28AN8: A novelty from Morocco, from a discovery in the summer of 2020. White parallel and tabular Baryte crystals covered by a perimorphic growth of a mosaic of small, very bright, cubic and octahedral Pyrite crystals. On the back of the piece (see video) the almost total dissolution of the original Baryte crystals can be seen.
Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region  Morocco (07/2020)

Specimen size: 9.1 × 6 × 6.3 cm = 3.58” × 2.36” × 2.48”

Main crystal size: 4.5 × 3.8 cm = 1.77” × 1.50”




Pyrite perimorphic of Baryte. Front
Front
Pyrite perimorphic of Baryte. Rear
Rear
Order
Pyrite perimorphic of Baryte
Pyrite perimorphic of Baryte. Front
Front
Pyrite perimorphic of Baryte. Rear
Rear
Pyrite perimorphic of Baryte.

Recorded under neon light
 

MJK68AN8: A novelty from Morocco, from a discovery in the summer of 2020. White parallel and tabular Baryte crystals covered by a perimorphic growth of a mosaic of small, very bright, cubic and octahedral Pyrite crystals. On the back of the piece (see video) the almost total dissolution of the original Baryte crystals can be seen.
Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region  Morocco (07/2020)

Specimen size: 12.2 × 7.5 × 4.5 cm = 4.80” × 2.95” × 1.77”

Main crystal size: 4 × 3.5 cm = 1.57” × 1.38”




Order
Gold (spinel twin)

Recorded under neon light
 

TRB16AN8: Parallel, twisted and very stylized growth of Gold crystals of well defined morphology, with the dominant forms of the octahedron, with distinct spinel-law twins and with curious hooked terminations.
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 (2020)

Specimen size: 3.8 × 0.3 × 0.3 cm = 1.50” × 0.12” × 0.12”

With a copy of its analysis.

Weight: 1.4 grams



Gold (spinel twin). Front
Front
Gold (spinel twin). Rear
Rear
Order

AFRICA (excl. Morocco)

Aegirine
Aegirine. Front
Front
Aegirine. Top
Top

Recorded under neon light
 

JRM10AN8: Parallel growth of very sharp and lustrous complex Aegirine crystals with perfect terminations. Given its morphological rarity, the specimen has been analyzed, and we will send a copy of the analysis to the buyer.
Mount Malosa, Zomba District  Malawi

Specimen size: 9.2 × 6.6 × 6.3 cm = 3.62” × 2.60” × 2.48”

Main crystal size: 6.6 × 3.9 cm = 2.60” × 1.54”




Order

CHINA

Fluorite

Recorded under neon light
 

EDL99AN8: Spheroidal growth of small translucent octahedral Fluorite crystals, with good luster and an intense and uniform emerald-green color, something remarkable because the vast majority of pieces found so far in this mine were of a more or less intense lilac-purple color which, due to lack of the intense green shown by this specimen, did not stand out.
Guxian (Minggang), Tongbai Xian, Henan Province  China (2021)

Specimen size: 6 × 4.6 × 3.8 cm = 2.36” × 1.81” × 1.50”

Main crystal size: 4.2 × 4 cm = 1.65” × 1.57”

Fluorescent long & short UV



Fluorite. Front
Front
Fluorite. Top
Top
Fluorite. Rear
Rear
Order
Imayoshiite with Bultfonteinite, Tobermorite (Group) and Andradite
Imayoshiite with Bultfonteinite, Tobermorite (Group) and Andradite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Imayoshiite with Bultfonteinite, Tobermorite (Group) and Andradite. Side / Photo: Joaquim Callén
Side / Photo: Joaquim Callén
Imayoshiite with Bultfonteinite, Tobermorite (Group) and Andradite. Rear / Photo: Joaquim Callén
Rear / Photo: Joaquim Callén

Recorded under neon light
 

EYT26AN8: A novelty in the summer of 2021 and, in all likelihood, the best known for the species thus far. Imayoshiite occurs in numerous very sharp crystals, with a tabular habit and hexagonal outline, transparent, very lustrous and colorless to slightly yellow, associated with spheroidal growths of pinkish Bultfonteinite, with small white fibrous coatings of Tobermorite (Group) and on an Andradite matrix.
The specimens have been analyzed and we will send a copy of the analysis to the buyer.
To learn more about this species and the rest of the paragenesis discovered so far in this mine, it is essential to read the article 'Rare Borate Minerals from the Shijiangshan-Shalonggou Deposits, Hexigten Banner, Inner Mongolia, China' whose authors are César Menor-Salván, Berthold Ottens and Ed Richard, featured in Rock & Minerals magazine of September/October 2021, volume 96, number 5
Shijiangshan Mine, Yinwu, Linxi, Ulanhad League, Inner Mongolia Autonomous Region  China (09/2021)

Specimen size: 2.2 × 1.7 × 1 cm = 0.87” × 0.67” × 0.39”

Main crystal size: 0.5 × 0.4 cm = 0.20” × 0.16”




Order
Imayoshiite with Bultfonteinite, Tobermorite (Group) and Andradite

Recorded under neon light
 

EPF67AN8: A novelty in the summer of 2021 and, in all likelihood, the best known for the species thus far. Imayoshiite occurs in numerous very sharp crystals, with a tabular habit and hexagonal outline, transparent, very lustrous and colorless to slightly yellow, associated with spheroidal growths of pinkish Bultfonteinite, with small white fibrous coatings of Tobermorite (Group) and on an Andradite matrix.
The specimens have been analyzed and we will send a copy of the analysis to the buyer.
To learn more about this species and the rest of the paragenesis discovered so far in this mine, it is essential to read the article 'Rare Borate Minerals from the Shijiangshan-Shalonggou Deposits, Hexigten Banner, Inner Mongolia, China' whose authors are César Menor-Salván, Berthold Ottens and Ed Richard, featured in Rock & Minerals magazine of September/October 2021, volume 96, number 5
Shijiangshan Mine, Yinwu, Linxi, Ulanhad League, Inner Mongolia Autonomous Region  China (09/2021)

Specimen size: 3.4 × 2.7 × 2.8 cm = 1.34” × 1.06” × 1.10”

Main crystal size: 1.3 × 0.6 cm = 0.51” × 0.24”




Imayoshiite with Bultfonteinite, Tobermorite (Group) and Andradite. Imayoshiite with Bultfonteinite, Tobermorite (Group) and Andradite.
Imayoshiite with Bultfonteinite, Tobermorite (Group) and Andradite.
Order


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