Hyalite opal on rutile - Novo Horizonte, Bahia, Brazil
A superb and unusual combination of hyalite opal, reactive to...
A superb and unusual combination of hyalite opal, reactive to...
Thick, well-formed hematite crystals with a beautiful metallic...
Rutile epitaxy around small hematite crystals on rhyolite....
Slab featuring a cluster of slender, well-formed prismatic...
Colorless, shiny quartz associated with lamellar calcite from...
Specimen composed of three quartz crystals with smooth,...
The specimen is dominated by an aggregate of calcite crystals...
An attractive, airy specimen composed of several pyromorphite...
Surface specimen composed of several crystals of pyromorphite...
Large scalenohedron of slightly pink calcite partially covered...
Small translucent smoky quartz crystals, several of which are...
Polished slice of polyhedral agate, which can be enjoyed as is...
Fluorite with a beautiful lustre and ink-purple colour. Piece...
Kämmererite (a rare chromium-bearing variety of clinochlore)...
Small crystal of bolite with a characteristic indigo blue...
Double fan or bow tie epidote, superbly shiny and in excellent...
Double fan or bow tie epidote, well symmetrical, superbly...
Double fan or bow tie epidote, with superb brilliance and in...
Colorless, shiny quartz point with a naturally healed base. 6...
A fan-shaped epidote with superb brilliance both on the...
Double fan or bow tie epidote, with superb brilliance and in...
Prismatic quartz single crystal with chlorite inclusions,...
Well-proportioned quartz cluster with shiny surfaces,...
Tabular quartz with “moss” type chlorite inclusions. The...
Piece composed of numerous shiny light green prehnite spheres...
Group of shiny, well-formed epidote crystals. 4,5 x 2,8 x 1,8 cm.
Shiny stalactite prehnite accompanied by unidentified white...
Translucent biterminated quartz from La Chambre in Maurienne...
A piece from the famous locality of Saint-Pierre-de-Mésage,...
Group of shiny, translucent quartz with chlorite inclusions...
Bright, lemon-yellow brucite whose shape allows us to see its...
Small cube of violet fluorite, with well-defined internal...