Mattarana, Carrodano, La Spezia Province, Liguria, Italy

Crystal group of diaspore Specimen: Fabrizio Castellaro Photo: Bruno Marello

Neat dipyramidal amesite crystals on chromite. Image size 4mm. Collection & photo R. Bracco.

© Roberto Bracco

Harrisitic structure of black olivine and white plagioclase in troctolite at the Baracca quarry. Photo in situ

© Andrea Oppicelli

dipyramidal colorless crystals of amesite up to 1.9 mm. Photo Enrico Bonacina, Collection Domenico Preite

© Enrico Bonacina

dipyramidal colorless crystals of amesite up to 1.2 mm. Photo Enrico Bonacina, Collection Domenico Preite

© Enrico Bonacina

Troctolite with harrisitic structure at the Baracca quarry. Serpentinisation has transformed the olivine into dark colored formations and the light plagioclase in prehnite. Photo in situ.

© Andrea Oppicelli

Troctolite with harrisitic structure at the Baracca quarry. Serpentinisation has transformed the olivine into dark colored formations and the light plagioclase in prehnite. Photo in situ.

© Andrea Oppicelli

Octahedral crystal of chromite-magnesiochromite series mineral. Photo with Samsung Galaxy S7 and Optika SZM2 microscope, one shot.

© Andrea Oppicelli

FOV 4 x 3 mm Collection and photo Roberto Bosi

© Roberto Bosi

Metagabbro with diallage

© Andrea Oppicelli

© Gianandrea Ghirri

Dark blue chromite-magnesiochromite series mineral crystals on matrix. Sony Alpha 7R IV A /Mitutoyo Plan Apo X 10 / Achromatic doublet retro/"Stone Master Stack Unit" linear-actor & Control/ Aperture. Photo & Collection: Christophe Boutry.

© Christophe Boutry

Published in: M.Marchesini, G, Passarino, Le mineralizzazioni cromifere del passo del Bracco, Micro, vol 23, pg.161

© Gianandrea Ghirri

Chromium-bearing green Clinoclore fills the spaces amidst rounded Chromite-magnesiochromite series mineral crystals. Published in: M. Marchesini, G, Passarino, Le mineralizzazioni cromifere del passo del Bracco, Micro, vol 23, pg.154.

© Gianandrea Ghirri

Submillimetric crystals of pale green Andradite. Published in: M.Marchesini, G, Passarino, Le mineralizzazioni cromifere del passo del Bracco, Micro, vol 23, pg.152

© Gianandrea Ghirri

© Gianandrea Ghirri

Small black octahedral crystals of chromite-magnesiochromite series mineral on matrix up to 2 mm. Purchased from Giuseppe Passarino (Spezialminerals). Collection & Photo: Marco Ballati.

Skeletal structures of olivine in melanotroctolite at the little quarry named " Baracca". Respect for these naturally eroded structures.

© Andrea Oppicelli

View of the Baracca quarry from the main road.

© Andrea Oppicelli

© Andrea Oppicelli