New Finds from the Huanggang Mines, Inner Mongolia

By admin • Crystallized Classics • 16 Jun 2015
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The ‘flood’ of specimens from Huanggang seems to have slowed somewhat this year, but fantastic new minerals are still being found, and the locality has already established itself as THE global occurrence of several minerals, such as Helvite-Genthelvite and Ilvaite. Geologically, the Huanggang mines are an Fe-Sn exogreisen, formed when Cretaceous-age anorogenic-type granites intruded calcaerous sedimentary rocks and metal-rich fluids migrated upward from the granitic intrusives into overlying skarn and vein deposits, forming rich polymetallic orebodies which are also rich in crystallized minerals found in abundant open pockets. 

(Landscape around the Huanggang Mines; photo by Jiang Bin)

                            (Miner offering specimens for sale; Jiang Bin photo)

                                                                    The following 11 specimens were selected by myself for quality, value and representativeness of this important new Chinese mineral locality. Enjoy!

H-01: Ilvaite: Huanggang Mines, Hexigten Banner, Inner Mongolia, China: $75.00

Great luster and nice terminations on this make it a good specimen for the locality. By now, the Ilvaite crystals from Huanggang are recognized as being by far the best in the world. While I saw numerous Ilvaite’s for sale in Tucson this year, I only ended up buying a handful which I considered really nice for the price, having great luster, aesthetics, and form. A modern Chinese ‘classic.’
Specimen Dimensions: 4.3 x 1.6 x 1.4 cm. Weight: 47 grams. 
H-02: Ilvaite: Huanggang Mines, Hexigten Banner, Inner Mongolia, China: $125.00
A great sharp crystal in fine condition and with the distinctive ‘tapered’ habit this species is known for. 
Specimen Dimensions: 6.8 x 2.8 x 2.4 cm. Weight: 132 grams.
H-03: Ilvaite: Huanggang Mines, Hexigten Banner, Inner Mongolia, China: $100.00 
A very nice group of sharp, lustrous parallel Ilvaite crystals from the Huanggang Mine, Hexigten province, Inner Mongolia, China. Great luster and nice terminations and aesthetics.
Specimen Dimensions: 6.1 x 1.7 x 2.6 cm. Weight: 51 grams. 
H-04: Ilvaite: Huanggang Mines, Hexigten Banner, Inner Mongolia, China: $125.00
A great cluster of 3 crystals which are better in person. A modern Chinese ‘classic.’
 Specimen Dimensions: 7 x 3.5 x 3.4 cm. Weight: 88 grams. 
H-05: Ilvaite: Huanggang Mines, Hexigten Banner, Inner Mongolia, China: $100.00
A great, aesthetic cluster of 2 lustrous terminated crystals which are better in person. A modern Chinese ‘classic.’
Specimen Dimensions: 6.4 x 4.7 x 2 cm. Weight: 105 grams. 
H-06: Helvite-Genthelvite on quartz and Ilvaite: Huanggang Mines, Hexigten Banner, Inner Mongolia, China: $150.00
A very nice group of sharp, large Helvite-Genthelvite crystals to 2 cm. on  matrix of quartz, ilvaite and andradite from the Huanggang Mine, Hexigten province, Inner Mongolia, China. Analysis is needed to prove if this is helvite or genthelvite; some crystals are also zoned and contain both species.
 
 By now, the Helvite-Genthelvite crystals from Huanggang are recognized as being probably the best in the world. A modern Chinese ‘classic’!
 
Specimen Dimensions: 12.5 x 7.4 x 5.5 cm. Weight: 617 grams.
H-07: Helvite-Genthelvite: Huanggang Mines, Hexigten Banner, Inner Mongolia, China: $120.00
An excellent group of sharp brown Helvite-Genthelvite crystals to 1.8 cm. in a radiating cluster with minor chlorite from the Huangang Fe-Sn mine, Hexigten Province, Inner Mongolia, China. A great example of the recent find of Helvite-Genthelvite from this very interesting locality which has proven to be the best of the species.
Specimen Dimensions: 3.2 x 2.7 x 1.8 cm. Weight: 34 grams
H-08: Helvite-Genthelvite: Huanggang Mines, Hexigten Banner, Inner Mongolia, China: $115.00
Sharp brown Helvite-Genthelvite crystals to 1.5 cm. in an aesthetic aerial grouping on chlorite matrix- much better in person; a super thumbnail!
Specimen Dimensions: 2.8 x 2.5 x 2 cm. Weight: 16 grams.
H-09: Helvite-Genthelvite on magnetite, fluorite, quartz: Huanggang Mines, Hexigten Banner, Inner Mongolia, China: $215.00
Sharp brown Helvite crystals to 1 cm. on lustrous magnetite and fluorite crystals from the Huangang Fe-Sn mine, Hexigten Province, Inner Mongolia, China. A great example of the recent find of Helvite from this very interesting locality which has proven to be the best of the species. Some of these have proved to be Genthlevite, but I will err on the side of caution with this specimen as say it is probably Helvite. Undamaged and with great aesthetics. 
Specimen Dimensions: 8 x 5 x 3.2 cm. Weight: 205 grams.
H-10: Helvite-Genthelvite on magnetite, Arsenopyrite, quartz: Huanggang Mines, Hexigten Banner, Inner Mongolia, China: $225.00
A cabinet-size specimen of sharp brown Helvite-Genthelvite crystals to 8 mm. on lustrous magnetite and arsenopyrite crystals with small aesthetic chlorite-included Quartz crystals from the Huangang Fe-Sn mine, Hexigten Province, Inner Mongolia, China. A great example of the recent find of Helvite from this very interesting locality which has proven to be the best of the species. Undamaged and with great aesthetics. A great specimen from an exciting new find!
Specimen Dimensions: 12.5 x 6.5 x 8.5 cm. Weight: 950 grams.
H-11: Quartz & Dolomite: Huanggang Mines, Hexigten Banner, Inner Mongolia, China: $115.00
A sharp crystals of doubly-terminated peach-colored Quartz with chlorite and dolomite from the Huangang Fe-Sn mine, Hexigten Province, Inner Mongolia, China. A great example of the recent find of these distinctive quartz crystals from perhaps the most exciting new locality in China; reminiscent of Dal’Negorsk quartz. 
Specimen Dimensions: 8.5 x 7.5 x 6.5 cm. Weight: 137 grams.

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