FMF - Friends of Minerals Forum, discussion and message board

[Jordi Fabre]

A novelty at Tucson 2018. Group of Quartz crystals transparent, bright, have cavernous forms on some of their faces and one of them a scepter. They have Chlorite inclusions and small Anatase crystals on their surfaces.

[Jordi Fabre]

Rosette-like growths of very flattened sharp lenticular Hematite crystals on a matrix of Quartz crystals. A modern classic.

[Jordi Fabre]

From a find in 2019, found deeper than usual at the Coud'a area. Parallel polycrystalline aggregates forming twisting walls and feather-like growths of crystals with a tabular shape, a lot of them doubly terminated and some with hollow forms.

[Jordi Fabre]

Crown-shaped growth of very aerial botryoidal aggregates, clear and colorless and with white botryoidal Aragonite formations.

[Jordi Fabre]

Twinned crystals of Gypsum implanted in a spheroidal aggregate of lenticular crystals of the same Gypsum but with a black color, possibly due to organic inclusions.
The yellow crystals also have the peculiarity that they show not only fluorescence but also phosphorescence when exposed to ultraviolet light.

[Jordi Fabre]

Groups of dipyramidal Olivenite crystals on Quartz matrix, with defined faces and edges and polycrystalline growths. An English classic.

[Jordi Fabre]

Very aerial specimen with growths of crystals of Silver with hooked terminations and lateral twists.
On matrix with deformed pseudo-octahedral crystals of Acanthite.

[Tobi]

I don't collect silver specimens and I must confess I'm not that into wire silvers, but that one is stunning and can compete with Freiberg/Germany and Kongsberg/Norway, the two Holy Grails of natural silver specimens!

And I love that yellow selenite from Canada posted some days ago, great specimen!

[Volkmar Stingl]

Really a great silver specimen from Hongda Mine, and a perfect photo!

[Jordi Fabre]

Cubo-octahedral Galena crystal showing an equal development of the cube and the octahedron faces. One of the cube faces is coated by yellow Pyrite.

[Jordi Fabre]

Group of octahedral Fluorite crystals with polycrystalline growths on an Albite matrix. A classic Alpine specimen.

[Jordi Fabre]

Floater growth of flattened reticulated prismatic twins of Cerussite with a rosette-like appearance different from other specimens commonly seen from this locality.

[Jordi Fabre]

Floater aggregate with polycrystalline growths of hexahedral Silver crystals with very defined faces and edges and with small dark coatings of Acanthite.

[Jordi Fabre]

Aggregate of very sharp, colorless and transparent Stokesite crystals on a little Microcline matrix with Albite.
These Stokesites, found in 1999 and featured in an article in The Mineralogical Record in 2012, are considered the best crystallized Stokesites in the world.

[Jordi Fabre]

Prehnite crystals with very marked curvatures and polycrystalline growths. A French classic from one of the most typical localities for the species.