Fluorite on Siderite with Chalcopyrite

Luise Mine, Rottleberode, Stolberg, Harz, Saxony-Anhalt, Germany

7.5 X 6.8 X 5.7cm

Collected in the 1800s and brought from Germany to the USA by well-known collector Martin Jensen, this piece was in the late Harvey Gordon Collection before I acquired it from his family on his passing. The Fluorite is 3.8cm across the top edge, has lightly frosted front and side faces, with a top and side face that have weakly greasy luster with marked tranlucency throughout. From the top, the Fluorite shows weakly zoned bands of clear to white to very faint pink at the core. The pink is more of a floating ghost than a sharp zone, and the Fluorite sits atop a sharply crystallized Siderite matrix with a few scattered crystals of Chalcopyrite near the base of the Fluorite. I have not seen very many of these, but this is the best I have seen, and Harvey valued it quite highly. Despite a small cleave on the top edge of the front face, minor contacting on the back, and a few very tiny nicks on a couple other edges, this specimen is in remarkable condition for its age.                            #FG-001          $750


6 Specimens added July 12, 2016

Fluorite on Pyrite

Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru

4.5 X 4.0 X 2.8cm

Classic combination of pink, gemmy fluorite on a matrix of numerous small brassy pyrite crystals from Huanzala! The late Rock Currier once stated that Huanzala had probably produced more mineral specimens than any other mine, but really good Fluorites like this are fairly scarce and usually quite pricey. This piece features a complexly terminated group of at least two obvious original Fluorite crystals with dominant spinel-twinning now intergrown. The front, top and back of the Fluorite grouping (as viewed in the photograph above) are in great shape, and even the small contacts on the sides are mostly etched and possibly slightly rehealed, essentially making this a floater. Ex. Paul Geffner Collection.                                                                  #FG-002          SOLD


Ojuela Mine, Mapimí, Municipio de Mapimí, Durango, Mexico

4.0 X 4.0 X 3.5cm

Sharp group of Fluorites to 2.5cm on edge, with relatively large crystals for Ojuela. These are usually more pronounced purple throughout, but this one features a clear zone near the outer purple edge, and a faint grayish-blue core. This came out of an older collection with Ojuela pieces from the 1960s and 1970s, but I don't have any more information. The group is in great condition with generally sharp edges and corners, with a few small cleaves on the back and base, the minor extent of which are clearly shown in the photos.

#FG-006          $375



Xianghauling Sn-Polymetallic Ore Field, Linwu County, Chenzhou Prefecture, Hunan Province, China

7.0 X 4.1 X 2.9cm

For a brief bit, Fluorite specimens this good were not uncommon, as the Chinese opened mines en masse in the late 1990s and early 2000s to feed their Industrial Revolution. Now that much of their infrastructure is completed (temporarily?), the mining and flood of specimens have slowed. I selected this older specimen from Xianghualing a while back because, even then, it had an extra pizzaz that distinguished it from the "crowd;"  this is an undamaged, light-mint green, mostly gemmy Fluorite 2.6cm on its longest edge, perched on a scrap of Calcite-lined matrix. Martin Zinn, Collector and (transitioning?) Show Promoter once used this piece as an example to me of his idea of "perfect balance." Ex. Lloyd Tate Collection.              #FG-003          $375

Fluorite on Quartz

Yaogangxian Mine, Yaogangxian W-Sn Ore Field, Yizhang County, Chenzhou Prefecture, Hunan Province, China


Another specimen I selected and kept back from the hoards of Chinese material that poured out in the 1990s up until very recently, as China permitted mining en masse to supply its Industrial Revolution. As the specimens from Yaogangxian continue to dwindle, they will become more and more highly prized as they typically incorporate the most sought-after color of Fluorite: blue! This piece comprises a 6.0cm-wide grouping of glassy, gemmy blues (a slight bit more on the greenish side than the blues from Illinois, USA) with very fine zones of purple near their margins, on a contrasting white matrix of terminated Quartz crystals. Commanding presence, flash, color, and display make for a strong piece of "eye candy!"                                                             #FG-005          $975

Calcite on Fluorite

Moscana Mine, Solís, Corvera de Asturias, Villabona Mining Area, Asturias, Spain

9.0 X 6.5 X 5.2cm

A distinctive combination from this venerable locality with a 5.8cm-long, doubly terminated, sceptered Calcite crystal on glassy, light yellow crystals of Fluorite. The Calcite has smaller sparkling Calcite crystals on the top and back, and the Fluorites locally have purplish zones. On the bottom is an old collection number I don't recognize, and any associated card was lost before I acquired the specimen. Very small contacts occur, as seen in the photos, but this is normal for these pieces and reflected in the price!

#FG-004          SOLD

Fluorite Gallery I