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| DCN1830 | _110 € |
| Fluorite, Calcite, Stibiconite |
| Dugupi-Maanshan Sb deposit, Niujie, Weishan County, Dali Prefecture, Yunnan Province, China |
| Cabinet | 18x16x9cm | 2530g |
| Large specimen of light purple phosphorescent fluorite, widely overgrown by a thick, sparkly layer consisting of a multitude of species, namely aragonite, calcite, gypsum, fluorite, quartz and secondary antimony minerals, not analyzed and preliminarily named here "stibiconite". There are strong hints that rarer secondary Sb-minerals, such as coquandite are present. Opaque cloudy to white areas, usually along the edges of the otherwise transparent fluorite xls may in fact be inclusions related to antimony content, as the "whitest" fluorite xls occur in immediate vicinity of amorphous secondary Sb-minerals. The inclusions, (which often look like edge damages!) cause a green shortwave fluorescence with noticeable phosphorescence in the otherwise blue fluorescent fluorite. Found 2009. |
| fluorescent fluorite LW blue with greenish edges SW greenish white phosphorescent! |
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| DCN1930 | _135 € |
| Aragonite, Metastibnite? |
| Dugupi-Maanshan Sb deposit, Niujie, Weishan County, Dali Prefecture, Yunnan Province, China |
| Cabinet | 18x14x12cm | 2150g |
| Coralloid aragonite with intergrown and included dark red secondary antimony minerals, probably metastibnite. Originally pure white and fluorescent, the inclusions color the aragonite in various shades of pink, red, yellow, brown and grey. |
| fluorescent LW yellow areas, SW green! |
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| DCN1831 | _140 € |
| Fluorite, Calcite, Stibiconite |
| Dugupi-Maanshan Sb deposit, Niujie, Weishan County, Dali Prefecture, Yunnan Province, China |
| Cabinet | 17x17x10cm | 3150g |
| Large specimen of light purple phosphorescent fluorite. Columnar structures represent perimorphs after stibnite, which completely vanished into secondary antimony minerals that are also present on this specimen. Not analyzed and preliminarily named here "stibiconite", there are strong hints that rarer secondary Sb-minerals, such as coquandite are present. Opaque cloudy to white areas, usually along the edges of the otherwise transparent fluorite xls may in fact be inclusions related to antimony content, as the "whitest" fluorite xls occur in immediate vicinity of amorphous secondary Sb-minerals. The inclusions, (which often look like edge damages!) cause a green shortwave fluorescence with noticeable phosphorescence in the otherwise blue fluorescent fluorite. The unilateral overgrowth on the fluorite column consists mainly of light brown, corroded calcite, aragonite (bright white balls) and secondary antimony minerals. Found 2009. |
| fluorescent fluorite LW blue with greenish edges SW greenish white phosphorescent! |
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| ECN1832 | _140 € |
| Fluorite, Calcite, Stibiconite with Aragonite, Gypsum |
| Dugupi-Maanshan Sb deposit, Niujie, Weishan County, Dali Prefecture, Yunnan Province, China |
| Large Cabinet | 21x16x14cm | 3850g |
| Large specimen of light purple phosphorescent fluorite, widely overgrown by a thick, sparkly layer consisting of a multitude of species, namely aragonite, calcite, gypsum, fluorite quartz and secondary antimony minerals, not analyzed and preliminarily named here "stibiconite". There are strong hints that rarer secondary Sb-minerals, such as coquandite are present. Opaque cloudy to white areas, usually along the edges of the otherwise transparent fluorite xls may in fact be inclusions related to antimony content, as the "whitest" fluorite xls occur in immediate vicinity of amorphous secondary Sb-minerals. The inclusions, (which often look like edge damages!) cause a green shortwave fluorescence with noticeable phosphorescence in the otherwise blue fluorescent fluorite. Found 2009. |
| fluorescent fluorite LW blue with greenish edges, green matrix minerals SW greenish phosphorescent fluorite, bright green matrix minerals |
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| DCN1518 | _145 € |
| Fluorite, Stibiconite with Calcite, Quartz |
| Dugupi-Maanshan Sb deposit, Niujie, Weishan County, Dali Prefecture, Yunnan Province, China |
| Cabinet | 15x13x7cm | 1440g |
| One of the best defined fluorite specimens from this locality: sharp cubes to 1.5cm modified by dodecahedron, light purple with multiple deep purple phantoms. Some xls are partially white from inclusions of secondary antimony minerals. Although probably the most common mineral, good fluorite specimens are rarely found at this locality. On a stibiconite rich matrix, partially overgrown by calcite and quartz. |
| fluorescent LW and SW blue |
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| DCN1519 | _155 € |
| Fluorite with Calcite, Gypsum, Metastibnite |
| Dugupi-Maanshan Sb deposit, Niujie, Weishan County, Dali Prefecture, Yunnan Province, China |
| Cabinet | 16x14x11cm | 2610g |
| Multiply stepped, penetration twinned fluorite, resulting in a somewhat rounded appearance. Quite transparent with darker cores and a noticeable color change from sky blue in overcast daylight to light purple in incandescent light. Associated by yellow, scalenohedral calcite and secondary antimony minerals! Note the four-color fluorescence, particularly the unusual greenish-blue fluorescence of the fluorite! |
| fluorescent LW multicolor blue Fluorite, yellow Calcite, SW blue, green, yellow and orange zones |
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| DCN1764 | _165 € |
| Fluorite, Calcite, Stibiconite |
| Dugupi-Maanshan Sb deposit, Niujie, Weishan County, Dali Prefecture, Yunnan Province, China |
| Cabinet | 16x10x9cm | 1320g |
| Light purple fluorite with yellow coating of varying iridescence! The columnar structure of the fluorite aggregates represent perimorphs after stibnite that completely vanished into secondary antimony minerals which are also present on this specimen. Not analyzed and preliminarily named here "stibiconite", there are strong hints that rarer secondary Sb-minerals are present, such as coquandite. Opaque white areas, usually along the edges of the otherwise transparent fluorite xls may in fact be inclusions related to antimony content, as the "whitest" fluorite xls occur in immediate vicinity of amorphous secondary Sb-minerals. The inclusions, (which often look like edge damages!) cause a green shortwave fluorescence with noticeable phosphorescence in the otherwise blue fluorescent fluorite. Yellow effects are caused by whitish fluorescence shining through the yellow surface coating. The unilateral overgrowth on the fluorite column consists mainly of light brown, corroded calcite scalenohedrons, aragonite (bright white balls) and secondary antimony minerals. Found 2009. |
| fluorescent fluorite LW zoned whitish and blue SW zoned greenish, also phosphorescent |
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| ECN1754 | _170 € |
| ?Metastibnite included Selenite, Stibiconite |
| Dugupi-Maanshan Sb deposit, Niujie, Weishan County, Dali Prefecture, Yunnan Province, China |
| Large Cabinet | 28x16x10cm | 3250g |
| Three faces are prominent on this large specimen: a white to pink sparkly face of small gypsum xls, an area with larger, transparent gypsum xls with bright red metastibnite inclusions and a face of exposed matrix, colored yellow from numerous stibiconite pseudomorphs. With such stibiconite content, the specimen probably contains over a kilogram of antimony. |
| fluorescent LW yellow SW greenish to orange |
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| ECN1468 | _180 € |
| Aragonite var. flos ferri, Fluorite, Metastibnite with Selenite, Stibiconite |
| Dugupi-Maanshan Sb deposit, Niujie, Weishan County, Dali Prefecture, Yunnan Province, China |
| Large Cabinet | 23x17x13cm | 5520g |
| Large specimen of peculiar "rat-tail" aragonite covering purple fluorite. The yellow color of the aragonite is caused by secondary antimony minerals, whereas the grey dusting is composed of metastibnite. |
| fluorescent LW patchy yellow |
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| DCN1762 | _190 € |
| Fluorite, Calcite, Stibiconite |
| Dugupi-Maanshan Sb deposit, Niujie, Weishan County, Dali Prefecture, Yunnan Province, China |
| Cabinet | 19x15x10cm | 2120g |
| Large matrix specimen of light purple fluorite, coated yellow and iridescent. The columnar structure of the aggregates represents a perimorph after stibnite that completely vanished into secondary antimony minerals which are also present on this specimen, mainly as bright white areas. Not analyzed and preliminarily named here "stibiconite", there are strong hints that rarer secondary Sb-minerals are present, such as coquandite. Opaque white areas, usually along the edges of the otherwise transparent fluorite xls may in fact be inclusions related to antimony content, as the "whitest" fluorite xls occur in immediate vicinity of amorphous secondary Sb-minerals. Transparent surface inclusions, (which often look like edge damages!) cause a green shortwave fluorescence with noticeable phosphorescence in the otherwise blue fluorescent fluorite. Yellow effects are caused by whitish fluorescence shining through the yellow surface coating. The unilateral overgrowth on the fluorite column consists mainly of light brown, corroded calcite scalenohedrons, aragonite (bright white balls) and secondary antimony minerals. Found 2009. |
| fluorescent fluorite LW zoned whitish and blue SW zoned greenish, also phosphorescent |
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| DCN1523 | _210 € |
| Fluorite, Calcite, Metastibnite |
| Dugupi-Maanshan Sb deposit, Niujie, Weishan County, Dali Prefecture, Yunnan Province, China |
| Cabinet | 11.5x9.5x8.5cm | 1010g |
| Tightly intergrown, penetration twinned fluorite, resulting in a rounded appearance. Quite transparent with noticeable color change from sky blue in overcast daylight to light purple in incandescent light. Associated by yellow, scalenohedral calcite and secondary antimony minerals! Note the four-color fluorescence, particularly the unusual greenish-blue fluorescence of the fluorite! Found 2008. This specimen is featured in the Mineralogical Record Magazine in the January/February issue 2010! |
| fluorescent LW multicolor blue Fluorite, yellow Calcite, SW blue, green, yellow and orange zones |
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| ECN1937 | _210 € |
| Fluorite, Calcite, Stibiconite |
| Dugupi-Maanshan Sb deposit, Niujie, Weishan County, Dali Prefecture, Yunnan Province, China |
| Large Cabinet | 27x18x11cm | 5300g |
| Large specimen of vibrant bluish purple fluorite in xls to 1.5cm, some skeletal and with white phantoms. Color change between bluish purple and purple. Slightly blue iridescent! On a relatively large matrix that is populated by stibiconite, aragonite and white and brown, mostly crystalline and yet unidentified minerals. Strong Shortwave phosphorescence is observed on some of the matrix minerals! |
| fluorescent LW multicolor blue fluorite, yellow matrix minerals, SW strongly phosphorescent matrix minerals! |
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| ECN1447 | _220 € |
| ?Metastibnite included Selenite with Aragonite |
| Dugupi-Maanshan Sb deposit, Niujie, Weishan County, Dali Prefecture, Yunnan Province, China |
| Large Cabinet | 42x16x10cm | 7700g |
| Large swallowtail twin selenite x, transparent with matte surface and unilateral aragonite overgrowth (highly fluorescent). Distinct bright red phantom, caused by yet unidentified Sb-minerals. The detail photo was taken through a cleavage window of the selenite x. Inconspicuous damages (untreated!), see photo. |
| fluorescent LW zoned orange interior, SW patchy bright yellow surface minerals |
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| ECN1759 | _230 € |
| Fluorite, Stibiconite with Calcite |
| Dugupi-Maanshan Sb deposit, Niujie, Weishan County, Dali Prefecture, Yunnan Province, China |
| Large Cabinet | 20x14x9cm | 2300g |
| Large matrix specimen of light purple fluorite, partially yellow and iridescent coated. The columnar structure of the aggregates represents a perimorph after stibnite that completely vanished into secondary antimony minerals which are also present on this specimen, mainly as bright white areas. Not analyzed and preliminarily named here "stibiconite", there are strong hints that rarer secondary Sb-minerals are present, such as coquandite. Opaque white areas, usually along the edges of the otherwise transparent fluorite xls may in fact be inclusions related to antimony content, as the "whitest" fluorite xls occur in immediate vicinity of amorphous secondary Sb-minerals. Transparent surface inclusions, (which often look like edge damages!) cause a green shortwave fluorescence with noticeable phosphorescence in the otherwise blue fluorescent fluorite. Yellow effects are caused by whitish fluorescence shining through the yellow surface coating. The unilateral overgrowth on the fluorite column consists mainly of light brown, corroded calcite scalenohedrons, aragonite (bright white balls) and secondary antimony minerals. Found 2009. |
| fluorescent fluorite LW zoned whitish and blue SW zoned green and phosphorescent |
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| DCN1506 | _240 € |
| Fluorite, Stibiconite, ?Valentinite with Calcite, Quartz |
| Dugupi-Maanshan Sb deposit, Niujie, Weishan County, Dali Prefecture, Yunnan Province, China |
| Cabinet | 11x10x5.5cm | 570g |
| One of the best fluorite specimens from this locality: sharp cubes to 1.5cm modified by dodecahedron, light purple with multiple deep purple phantoms. Although being one of the most common mineral, fluorite specimens with smooth faces are rarely found at this locality. The back side of the specimen has pockets of secondary antimony minerals. Unilateral overgrowth of calcite, quartz and other minerals. Found 2008. This specimen is featured in the Mineralogical Record Magazine in the January/February issue 2010! |
| fluorescent LW and SW white to yellow calcite |
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| ECN1760 | _290 € |
| Fluorite, Calcite, Stibiconite |
| Dugupi-Maanshan Sb deposit, Niujie, Weishan County, Dali Prefecture, Yunnan Province, China |
| Large Cabinet | 21x19x12cm | 3350g |
| Large matrix specimen of light purple to pink, phosphorescent fluorite! Columnar structures represent perimorphs after stibnite, which completely vanished into secondary antimony minerals that are also present on this specimen. The unilateral overgrowth on the fluorite column consists mainly of light brown, corroded calcite scalenohedrons, transparent second-generation calcite xls, aragonite (bright white balls), gypsum and secondary antimony minerals. Specimens like this with several and undamaged fluorite columns can only be retrieved from suitable matrix outcrops, as the underlying fluorite/stibiconite structure is too brittle for the conventional retrieval techniques. The specimen therefore has a naturally grown underside. |
| fluorescent fluorite LW zoned whitish and blue SW zoned greenish and phosphorescent |
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| DCN1513 | _415 € |
| Fluorite, Calcite, ?Metastibnite, ?Coquandite |
| Dugupi-Maanshan Sb deposit, Niujie, Weishan County, Dali Prefecture, Yunnan Province, China |
| Cabinet | 14x14x11cm | 1720g |
| Medium purple fluorite xls, some with white rims, all with corner modifications, on matrix. Unilateral overgrowth of small, sparkly, yellow calcite xls. Note the red surface coating which is probably metastibnite! Under the calcite is a pocket of what is probably the rare antimony mineral coquandite with typical silky appearance. Quite colorful specimen at daylight as well as UV! Note the unusual greenish blue SW fluorescence of the fluorite! Found late 2008. This specimen is featured in the Mineralogical Record Magazine in the January/February issue 2010! |
| fluorescent LW multicolor blue Fluorite, yellow Calcite SW green Fluorite and orange patches! |
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| DCN1514 | _430 € |
| Gypsum var. Selenite, Fluorite with Calcite |
| Dugupi-Maanshan Sb deposit, Niujie, Weishan County, Dali Prefecture, Yunnan Province, China |
| Cabinet | 12x10x8.5cm | 680g |
| Terminated, transparent selenite x, with soft edges that give it a "molten" appearance, growing on a bed of light purple, fully crystallized fluorite. Further contrast is added by pockets of yellow calcite. Difficult to photograph due to the transparency of the selenite and actually better in person! Found late 2008. This specimen is featured in the Mineralogical Record Magazine in the January/February issue 2010! |
| fluorescent LW multicolor blue Fluorite, yellow Calcite, SW greenish Fluorite! |
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