Quartz psm after calcite - Entraygues-sur-Truyère, Aveyron,...
Interesting calcite-to-quartz perimorphoses on smoky quartz....
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Interesting calcite-to-quartz perimorphoses on smoky quartz....
Specimen composed of a tangle of brilliant hyaline quartz...
A very attractive specimen composed of several tetrahedrites...
A technical and aesthetic piece consisting of several...
Tangle of small translucent and brilliant quartz,...
A group of small tetrahedrite crystals (up to 6 mm for the...
Rare tetrahedrite probably pseudomorphosed into limonite...
Piece composed on one side of numerous small bushes of...
Small plate of calcites pseudomorphosed in quartz. 9 x 6 x 2,5...
Plate of calcites pseudomorphosed in quartz. 13 x 9,5 x 3,5 cm.
Superb small group of tetrahedrite crystals probably...
Exceptional piece composed of several very well formed...
Tetrahedrite crystals (1.5 cm edge for the main crystal)...
Small group of no less than 7 very well shaped crystals of...
Exceptional piece because of its rarity and its aestheticism :...
Sparkling Azurite of a beautiful royal blue associated with a...
Exceptional specimen composed of a grouping of well shaped...