Rare blue allophane with green malachite

From our selection of collectible minerals we propose a rare group of mammillated crystals of Allophane with Malachite from the Mt. Copello-Reppia Mine, Ne, Genova, Liguria. Moreover, it is characterized by the vivid color contrast between the intense blue of Allophane and the bright green of Malachite, arranged in a suggestive mammillated crystallization on a matrix, which increases its aesthetic value and mineralogical significance. The specimen stands out for the quality of crystallization and for the overall aesthetic balance, with features that enhance its natural structure and visual impact. Allophane is an amorphous hydrated aluminosilicate (mineraloid) that forms from the alteration of siliceous rocks; when it contains traces of copper, as in this case, it can take very intense blue hues. Malachite, basic copper carbonate, is one of the most common secondary minerals in the oxidation zones of copper ore deposits and owes its characteristic green color to copper. The Copello-Reppia mine, inland from Genoa, is a historic copper mining site known among collectors for these mineral associations. This is an ideal specimen for mineral collections, display, and for those who appreciate the natural beauty of minerals, even in the context of crystal therapy and lithotherapy, in accordance with the properties traditionally associated with the mineral species. All minerals are 100% natural and untreated, except for rare exceptions always noted in the description. The photographs are taken with professional lighting to best showcase colors and details; however, slight tonal variations may occur depending on the device or ambient light. Shipping is carried out via reliable and selected express couriers, with fast delivery (often 1-2 business days within Europe), tracked and insured shipping and professional and safe packaging, as confirmed by customer reviews. Deliveries can also take place the day after payment depending on the destination. It is possible to accumulate multiple purchases and have them shipped in a single shipment, even from auctions with different deadlines, simply by contacting us to arrange the consolidation. For important pieces, direct home delivery by appointment or at major European fairs is also available. Remember that you can see all the pieces in the auction at the following link: www.catawiki.com/it/u/16653967 Follow us also in the live auctions every Monday and Friday at 20:55! If you would like to view videos, request additional information, or satisfy curiosities about the pieces in CataWiki special auctions, do not hesitate to contact us. You can find other contacts here: www.italmineral.com/pages/contact

Estimation:€1

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