Athena. Owl.

A T H E N A

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Acknowledgements

Anatase
Anatase
Andalusite
Arsenic
Arsenolite
Arthurite
Azurite

Bastnäsite-(Ce)
Benitoite
Beryl
Beryl
Boracite
Brookite

Cafarsite
Calcite
Camerolaite
Capgaronnite
Canavesite
Carbonate-Cyanotrichite
Carrollite
Cavansite
Ceruleite
Cervandonite-(Ce)
Cetineite
Chayesite
Chernovite-(Y)
Chloritoid
Chromite
Cinnabar
Clinochlore
Coquimbite
Cornetite
Cornubite
Cornwallite
Crocoite

Defernite
Deloryite
Diaspore
Dioptase
Dundasite

Eakerite
Epidote
Erdite

Ferrarisite
Ferrisurite
Ferrolaueite
Fianelite

Gasparite-(Ce)
Geminite
Gilmarite
Glaucophane
Glaucophane
Gold
Grechishchevite
Guarinoite
Guerinite
Gysinite-(Nd)

Harmotome
Hausmannite

Ianthinite
Ice
Iltisite
Imiterite

Jedwabite
Jensenite
Johannsenite

Klöchite
Ktenasite
Kyanite

Lazurite
Luberoite

Milarite
Monazite-(Ce)
Mullite

Nabiasite
Nahcolite
Neptunite

Orthoserpierite

Papagoite
Paraniite-(Y)
Parnauite
Peretaite
Perovskite
Perroudite
Perroudite
Picropharmacolite
Plancheite

Quartz ("Tessiner")
Quartz ("Twin")
Quartz ("Twin")
Quartz ("Blue")
Quartz ("Diamond")
Quartz ("Agate")

Rectorite
Roedderite
Roedderite
Rutile
Rutile

Sainfeldite
Saneroite
Scotlandite
Sphalerite
Strengite
Strengite
Stibiotantalite
Sudovikovite

Tegengrenite
Titanite
Topaz
Trattnerite
Tunisite

Umohoite

Whewellite
Wittichenite
Wurtzite

Xenotime-(Y)

Yvonite

Zeunerite
Zincocopiapite
Zircon

OPAQUE MINERALS

 

Hausmannite, Långban

Hausmannite, Mn2+Mn3+2O4
Långban, Sweden

Hausmannite showing twinnings. Reflected light, nearly crossed nicols, 0.3 mm.
Photo © Kjell Gatedal, School of Mines and Metallurgy, Filipstad, Sweden.