Goethite psm after pyrite - Agos-Vidalos, Hautes-Pyrénées, France
Pyrite pseudomorphosed into goethite from Agos-Vidalos in the...
Pyrite pseudomorphosed into goethite from Agos-Vidalos in the...
Botryoidal amethyst nicknamed “cluster chalcedony” or “cluster...
Turquoise-blue aurichalcite under colorless calcite crystals...
Piece composed of numerous small, bright dioptase crystals.3 x...
Piece composed of numerous small, bright dioptase crystals.3 x...
Bright orange-red crocoite crystals on limonite matrix.5.5 x 3...
An architecturally complex piece of brilliant white quartz,...
An airy, brilliant specimen of lightly amethysted quartz from...
Pyrite cubes of superb brilliance and very good condition,...
Small red spinel octahedrons, some brilliant and gemmy,...
Bright yellow stolzite, delicately set on small scheelite...
Colorless hexagonal calcite with relatively thick petals and...
An old sample of grossular garnets or andradites, including a...
Green-banded actinolite with copper-bright pyrite on a matrix...
Curved pyrite octahedrons of fine quality and brilliance on...
Not common! Native arsenic showing natural dissolution. This...
Group of smoky and biterminated quartz from a small Australian...
Dalnegorsk fluorites are renowned for the purity of their...
Set of quartz points, one of which is biterminated, with shiny...
Small piece composed of several wavellite spheres of different...
Small piece composed of several wavellite spheres of different...
A small, well-finished crystal with beautiful brightness and...
Well-finished crystal with beautiful brightness and...
Set of two cubes of translucent violet fluorite revealing...
Set of translucent violet fluorite cubes with shiny surfaces,...
Fluorite cubes with lovely, bright purple phantoms contrasting...
Naturally interlocking pyrite crystals with mirror-like lustre...
Airy set of vanadinite crystals of varying sizes, displaying...
Small, extremely bright and well-formed green demantoid...
Small, extremely bright and well-formed green demantoid...
Small, extremely bright and well-formed green demantoid...