SPECIAL BRAZILIAN MINERAL AUCTION - The Collection of Rolando Gioia - ends Thursday, December 14th, 2017

Ends Thursday, December 14th, 2017
at 7:00 PM (Central Time Zone)

SPECIAL ANNOUNCEMENT! We are pleased to announce that we have acquired the Brazilian mineral collection of Rolando Gioia (a contributor to new definitive book on Brazilian minerals: "Minerais e Pedras Preciosas do Brasil"). The collection is full of attractive, colorful, rare and unusual specimens from major localities to small occurrences throughout this mineral-rich country. We did an introductory auction from this collection a few weeks back, and this special set 30 piece set will formally announce the addition of specimens into the regular weekly liquidation auctions, over the coming weeks and months.
Filter By

Rhodonite (ex Rolando Gioia Collection)
Morro da Mina Mine, Conselheiro Lafaiete, Minas Gerais, Brazil
3.1 x 3.0 x 2.8 cm
Rose Quartz (ex Rolando Gioia Collection)
Pitorra Claim, Laranjeiras, Galileia, Doce valley, Minas Gerais, Brazil
4.4 x 4.4 x 1.3 cm
Tourmaline (ex Rolando Gioia Collection)
Pederneira claim, Sao Jose da Safira, Doce valley, Minas Gerais, Brazil
2.1 x 0.7 x 0.6 cm
Magnesite on Hematite (ex Rolando Gioia Collection)
Pomba Pit, Serra das Eguas, Brumado, Bahia, Brazil
3.2 x 1.6 x 1.4 cm
Microcline with Albite (ex Rolando Gioia Collection)
Aracuai, Minas Gerais, Brazil
10.3 x 9.4 x 6.2 cm
Malachite pseudomorph after Azurite (ex Rolando Gioia Collection)
Seabra, Bahia, Brazil
4.2 x 2.6 x 2.1 cm
Smoky Quartz (scepter) (ex Rolando Gioia Collection)
Minas Gerais, Brazil
4.0 x 2.1 x 1.3 cm
Brazilianite with Albite (ex Rolando Gioia Collection)
Linopolis, Divino das Laranjeiras, Minas Gerais, Brazil
4.1 x 2.5 x 2.2 cm
Rose Quartz (ex Rolando Gioia Collection)
Ilha claim, Taquaral, Itinga, Minas Gerais, Brazil
5.7 x 3.8 x 1.2 cm
Cassiterite (twins) (ex Rolando Gioia Collection)
Linopolis, Divino das Laranjeiras, Minas Gerais, Brazil
6.6 x 3.7 x 1.2 cm
Uvite Tourmaline with Magnesite
Brumado, Bahia, Brazil
2.7 x 2.3 x 1.3 cm
Hureaulite (ex Rolando Gioia Collection)
Jocao pegmatite (Cigana claim), Conselheiro Pena, Minas Gerais, Brazil
7.1 x 3.8 x 3.6 cm
Dolomite (twins) (ex Rolando Gioia Collection)
Pomba pit, Serra das Eguas, Brumado, Bahia, Brazil
2.4 x 2.2 x 2.1 cm
Chrysoberyl (var: Alexandrite) (ex Rolando Gioia Collection)
Carnaiba mining district, Pindobauu, Campo Formoso ultramafic complex, Bahia, Brazil
7.3 x 5.2 x 2.6 cm
Muscovite (stark yellow color) with Albite (ex Rolando Gioia Collection)
Minas Gerais, Brazil
9.7 x 7.2 x 3.3 cm
Tourmaline (multicolor) (ex Rolando Gioia Collection)
Cruzeiro Mine, Sao Jose da Safira, Minas Gerais, Brazil
2.1 x 0.6 x 0.5 cm
Zanazziite with Eosphorite on Quartz and Albite (ex Rolando Gioia Collection)
Taquaral, Minas Gerais, Brazil (type locality for Zanazziite)
8.0 x 6.1 x 3.9 cm
Tourmaline (d/t multicolor crystal) with Quartz and Lepidolite (ex Rolando Gioia Collection)
Minas Gerais, Brazil
3.6 x 1.6 x 1.3 cm
Columbite / Tantalite on Muscovite (ex Rolando Gioia Collection)
Minas Gerais, Brazil
7.6 x 6.0 x 3.8 cm
Tourmaline on Microcline with Lepidolite (ex Rolando Gioia Collection)
Minas Gerais, Brazil
15.6 x 7.7 x 3.6 cm
Tourmaline (pink and green) (ex Rolando Gioia Collection)
Minas Gerais, Brazil
3.7 x 0.9 x 0.7 cm
Tourmaline with "cat's eye" terminations (ex Rolando Gioia Collection)
Cruzeiro Mine, Sao Jose da Safira, Minas Gerais, Brazil
4.2 x 1.1 x 0.8 cm
Tourmaline in / on Quartz (ex Rolando Gioia Collection)
Minas Gerais, Brazil
5.2 x 3.7 x 3.3 cm
Rutile included in Quartz (ex Rolando Gioia Collection)
Diamantina, Minas Gerais, Brazil
5.6 x 3.7 x 2.7 cm
Spessartine on doubly-terminated Quartz (ex Rolando Gioia Collection)
Navegadora claim, Penha do Norte, Conselheiro Pena, Minas Gerais, Brazil
1.5 x 1.1 x 0.9 cm
"Alligator" Quartz ("floater") (ex Rolando Gioia Collection)
Divino das Laranjeiras, Minas Gerais, Brazil
9.5 x 3.1 x 2.1 cm
Rose Quartz with Muscovite on Quartz (ex Rolando Gioia Collection)
Pitorra claim, Laranjeiras, Galileia, Minas Gerais, Brazil
5.7 x 3.4 x 3.1 cm
Tourmaline (rare purple color) (ex Rolando Gioia Collection)
Cruzeiro Mine, Santa Maria do Suauui, Minas Gerais, Brazil
2.6 x 1.3 x 1.1 cm
Aquamarine (ex Rolando Gioia Collection)
Minas Gerais, Brazil
4.3 x 4.1 x 3.2 cm
Kyanite (ex Rolando Gioia Collection)
Barra de Salinas, Jequitinhonha valley, Minas Gerais, Brazil
11.7 x 4.1 x 1.8 cm
Mineral Auctions
Copyright © 2024 Mineral Auctions, All Rights Reserved.
972-437-2492 x 206
Register | Login | Privacy Policy