Anthoinite

Yellow earthy masses of anthoinite, intermixed with dark brown ferberite (was labeled as cassiterite, not found at locality). S287-027 Specimen courtesy of Excalibur Mineral Company. Specimen label indicates locality is "Gikunga, Kifuruwe, Rwanda". The indicated locality is the best match of the label information with the Mindat database.

© 2007, JGW, courtesy of Photographic Guide to Miner

dimension area mm. 2 x 2 photo and collection Luigi Chiappino

White, chalky with some platy crystals of anthoinite. Former Jaroslav Hyrsl collection. Rolf Luetcke specimen and photo.

White mass of Anthoinite Size: 9,5 X 5 cm Collection and photo: Arliguie M

© Arliguie M

FOV 5 x 3 mm Collection and photo Roberto Bosi

© Roberto Bosi

4.7 x 3.3 x 2.4 cm. Anthoinite is a very rare anhydrous tungstate and this very rare and weird looking combination is from an obscure Rwanda locale, an unusual Al-rich phosphate pegmatite. It is rare from any world-wide locale. Striking box-works on three sides of the matrix are filled with straw-yellow anthoinite. The matrix is a real rarity in ...

© Rob Lavinsky & irocks.com

Creamy white chalky Anthoinite Locality on label: Nyakabingu, Bumbogo, Rwanda Acquired from Jaroslav Hyrsl

White mass of Anthoinite from TL. Collection and photo: Arliguie M.

4.7 x 3.3 x 2.4 cm. Anthoinite is a very rare anhydrous tungstate and this very rare and weird looking combination is from an obscure Rwanda locale, an unusual Al-rich phosphate pegmatite. It is rare from any world-wide locale. Striking box-works on three sides of the matrix are filled with straw-yellow anthoinite. The matrix is a real rarity in ...

© Rob Lavinsky & irocks.com

White, chalky with some platy crystals of anthoinite. Former Jaroslav Hyrsl collection. Rolf Luetcke specimen and photo.

White microcrystalline aggregates of anthoinite - rare secondary tungsten mineral - with some yellowish "ferrigunstite" variety of hydrokenoelsmoreite, and some unchanged black ferberites. The tiny orange crystals may be raspite. Photo layer stacking technique used.

© Łukasz Kruszewski 2022

Anthoinite is a very rare anhydrous tungstate and this very rare and weird looking combination is from an obscure Rwanda locale, an unusual Al-rich phosphate pegmatite. It is rare from any worldwide locale. The habit of scheelite still can be observed, this is one of the most uncommon pseudomorph minerals that I have ever seen. Ex J. Hyrsl, to ...

© Rob Lavinsky & MineralAuctions.com

White microcrystalline aggregates of anthoinite - rare secondary tungsten mineral - with some yellowish "ferrigunstite" variety of hydrokenoelsmoreite, and some unchanged black ferberites; another view. The tiny orange crystals may be raspite. Not sure about the pink mineral. Photo layer stacking technique used.

© Łukasz Kruszewski 2022

White microcrystalline aggregates of anthoinite - rare secondary tungsten mineral - with some yellowish "ferrigunstite" variety of hydrokenoelsmoreite, but in this view mostly with some unchanged black ferberite. Not sure about the bluish mineral. Photo layer stacking technique used.

© Łukasz Kruszewski 2022

White microcrystalline aggregates of anthoinite - rare secondary tungsten mineral - with some yellowish "ferrigunstite" variety of hydrokenoelsmoreite, and some unchanged black ferberites; a whole replacement pocket is shown here. The tiny orange crystals may be raspite. Not sure about the identity of the pink mineral. Photo layer stacking ...

© Łukasz Kruszewski 2022

White chalky anthoinite on quartz. Euromex EduBlue, built-in 5 MP USB-2.0 1/2.8 inch Sensor CMOS Camera. ImageFocus Plus capturing, Helicon Focus stacking. Peter Lof photo and collection.

© Peter Lof