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Manganoneptunite Gallery

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Manganoneptunite : Na2KLi(Mn2+,Fe2+)2Ti2[Si8O24]

Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada

Mangan-neptunite crystal with green aegirine needles.Field of view 4 mm. Doug Merson photo and collection.
 © 2003 DMPhoto ID: 7267    View Count: 552

Manganoneptunite : Na2KLi(Mn2+,Fe2+)2Ti2[Si8O24], Aegirine : NaFe3+[Si2O6]

Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada

Nearly black Mangan-Neptunite-xls associated with green Aegirine xls. Picture width 2 mm. Photographer and collection O. Dziallas.
 © O. DziallasPhoto ID: 39039    View Count: 341

Manganoneptunite : Na2KLi(Mn2+,Fe2+)2Ti2[Si8O24]

Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada

Crystal size 2 mm. Self collected 2004. Photo and collection Giovanni Fraccaro.
 © GiovanniFraccaroPhoto ID: 46314    View Count: 337

Manganoneptunite : Na2KLi(Mn2+,Fe2+)2Ti2[Si8O24], Microcline : K[AlSi3O8]

Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada

Manganoneptunite crystals up to 2mm long exhibiting dark almost black color with red highlights. FOV 10mm x7.5mm
Photo ID: 212545    View Count: 93

Multiple photos availableManganoneptunite : Na2KLi(Mn2+,Fe2+)2Ti2[Si8O24]

Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada

FOV 2.4 x 2.6 mm. Collected by Modris B late 1990s.
Manganoneptunite is generally well crystalized but nearly black at STA.
Two stereo child photos.
Photo ID: 177059    View Count: 79

Manganoneptunite : Na2KLi(Mn2+,Fe2+)2Ti2[Si8O24]

Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada

Specimen and photograph by Arnaldo Brunetti

Field of view: 3mm (Found 2009)
Photo ID: 211937    View Count: 49

Multiple photos availableManganoneptunite : Na2KLi(Mn2+,Fe2+)2Ti2[Si8O24]

Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada

FOV ~ 13 x 13 mm. Found July 1998.
Manganoneptunite is common at STA. But the xls are generally tiny and very dark - almost black (as in this photo). This is part of a small miaroliric cavity exceptionally rich in the mineral. The xl on the rhs is ~ 3.5 mm - fairly large for STA. The only significant associated mineral was natrolite (out of sight ...
Photo ID: 255229    View Count: 10

Manganoneptunite : Na2KLi(Mn2+,Fe2+)2Ti2[Si8O24]

Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada

Photographed by and in the collection of Doug Merson.
 © 2005 DMPhoto ID: 31911    View Count: 380

Manganoneptunite : Na2KLi(Mn2+,Fe2+)2Ti2[Si8O24]

Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada

Picture width 4 mm. Collection and photograph Stephan Wolfsried
 © Stephan WolfsriedPhoto ID: 34439    View Count: 413

Manganoneptunite : Na2KLi(Mn2+,Fe2+)2Ti2[Si8O24]

Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada

A remarkable thumbnail! It is a 2.5 cm tall specimen with a wonderful, deep red 1.3 cm neptunite crystal showing exceptional form. Ex Marcelle and Charles Weber Collection. 2.6 x 2.0 x 1.7 cm

 © Rob LavinskyPhoto ID: 20222    View Count: 353
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