The Mineralogist

(via Fibrous hematite from Germany)

(via Chalcedony (Var: Agate) from Czech Republic)

(via Fluorite on Quartz from Sauberg Mine, Germany)

(via Anatase from Triolet Glacier, Italy)

(via Spessartine from Pakistan) “The white lines at the edges of this kind of spessartine are only visible at a special angle with a tolerance of about +- 2 degrees.”

(via Strengite from Alabama)

Background is manganese oxides.

(via Baryte from Clara Mine, Germany)

Amazonite crystal face by Grover Schrayer

Amazonite is a green variety of microcline feldspar.

Phlogopite by Henri Koskinen . Sample from Mustio carbonate quarry, Finland.

Azurite from Russia by R. Tanaka

(via Fluorite from Newlandside Quarry, England )

Amethyst by Florent Chouffot

Quartz (via Martin Fischhaber | Flickr - Photo Sharing!)

Upclose shot of Sagenitic Agate (via Kobolt74 | Flickr - Photo Sharing!)

“Sagenitic agate is any agate having acicular or needle like mineral growths. These hair like filaments are often arranged in fans or sunbursts. The inclusions come in a wide array of colors.“ (source

Brookite (via Petr Fuchs | Flickr - Photo Sharing!)

Almandine from Finnish Lapland (via Henri Koskinen | Flickr - Photo Sharing!)

Quartz (by Diogo Nazare | Flickr - Photo Sharing!)