Login
  • Learn
  • About Us
    • iRocks History
    • Natural Art
    • What is the Arkenstone?
    • Affiliated Sites
    • Locations
      • Dallas Gallery
      • China Exhibits
    • Services
      • Collection Consulting Services
      • Lucite Bases
      • Fine Mineral Photography
    • Staff Bios
  • Events
    • Shows
    • Dallas Mineral Collecting Symposium
    • Auctions
    • Exhibits
  • Minerals in the Media
    • Recommended Reading
    • Arkenstone Publications
    • News Articles
    • Video Clips
    • Arkenstone Covers
    • Minerals for Kids
  • The Wisdom Pocket Blog
  • Contact
  • Shop
  • New Galleries
  • Themed Galleries
  • The Vault
  • Order Specimens
  • Mineral Auctions
  • SALE
  • Login
  • Advanced Search

The Bruno and Rolando Gioia Collection

NEW - Feb 24, 2021 - We are honored to announce that we have purchased the multigenerational Gioia collection, assembled over the heyday of modern Brazilian mineral collecting. A portion of the collection is also illustrated in the new book (December 2020) Mineral Collections of Brazil (including over a dozen specimens listed here). Rolando Gioia, a noted collector and a major contributor to the important book Minerals and Precious Stones of Brazil, was a lifelong collector. His son Bruno, continued the family tradition of mineral collecting even as he developed a career as a successful gem dealer and jewelry manufacturer based in Sao Paolo. Rolando was a schoolmate, contemporary and field partner with the late Luiz Menezes, and Bruno grew up going along on some of their amazing trips to mines and quarries in Brazil, as documented in his story in the recently published huge book (click here to see PDF of the Gioia chapter)


Under his noted father's tutelage, Bruno also developed a keen eye for mineral aesthetics, even as he followed his own career in gemstones and jewelry. You will see here this aesthetic taste in play, with a careful selection of unique pieces and combinations from the family collection. We are happy to present so many choice treasures, not seen except privately in Brazil until now. Look for many old classics from specific, rare finds. Enjoy!

  • « Prev
  • 1
  • 2
  • Next »
1-30 of 38 Items
Elbaite Tourmaline (1967 pocket!) - illustrated
BGB20-03
Elbaite Tourmaline (1967 pocket!) - illustrated
$6,000.00
Miniature, 4.9 x 3.5 x 2.0 cm
Golconda III mine, Golconda pegmatite field, Governador Valadares, Minas Gerais, Brazil
(4 more images)
Order Now
Details
Stokesite with Cookeite on Lepidolite  (illustrated)
BGB20-04
Stokesite with Cookeite on Lepidolite (illustrated)
$1,500.00
Miniature, 4.8 x 2.7 x 1.1 cm
Urucum Claim, Galileia, Minas Gerais, Brazil
(3 more images)
Order Now
Details
Beryl var. Aquamarine  (illustrated)
BGB20-05
Beryl var. Aquamarine (illustrated)
$950.00
Miniature, 5.0 x 3.0 x 1.9 cm
Medina, Jequitinhonha Valley, Minas Gerais, Brazil
(3 more images)
Order Now
Details
Hydroxylapatite on Quartz
BGB20-06
Hydroxylapatite on Quartz
$1,350.00
Miniature, 5.0 x 3.9 x 1.0 cm
Sapo Mine, Ferruginha, Conselheiro Pena, Minas Gerais, Brazil
(2 more images)
Order Now
Details
Elbaite Tourmaline
BGB20-07
Elbaite Tourmaline
$950.00
Miniature, 3.8 x 2.2 x 1.2 cm
Virgem da Lapa, Minas Gerais, Brazil
(1 more images)
Order Now
Details
Beryl var. Heliodor
BGB20-09
Beryl var. Heliodor
$1,500.00
Small Cabinet, 6.5 x 4.0 x 1.7 cm
Padre Paraiso, Minas Gerais, Brazil
(1 more images)
Order Now
Details
Aquamarine on Smoky Quartz
BGB20-12
Aquamarine on Smoky Quartz
$950.00
Small Cabinet, 8.0 x 4.2 x 3.5 cm
Ponto de Marambaia, Padre Paraiso, Minas Gerais, Brazil
(1 more images)
Order Now
Details
Emerald with Biotite and Graphite (illustrated)
BGB20-11
Emerald with Biotite and Graphite (illustrated)
$2,500.00
Small Cabinet, 7.5 x 5.7 x 4.1 cm
Nova Era, Minas Gerais, Brazil
(4 more images)
Order Now
Details
Cassiterite (twinned) -  (illustrated)
BGB20-17
Cassiterite (twinned) - (illustrated)
$1,800.00
Miniature, 4.5 x 4.2 x 2.9 cm
Linopolis, Divino das Laranjeiras, Minas Gerais, Brazil
Order Now
Details
Titanite (twinned)
BGB20-18
Titanite (twinned)
$750.00
Miniature, 4.7 x 2.2 x 1.7 cm
Capelinha, Minas Gerais, Brazil
(2 more images)
Order Now
Details
Rose Quartz on Quartz
BGB20-21
Rose Quartz on Quartz
$1,250.00
Small Cabinet, 6.2 x 3.1 x 2.9 cm
Ilha Claim, Taquaral, Itinga, Minas Gerais, Brazil
(1 more images)
Order Now
Details
Emerald on Calcite (illustrated)
BGB20-20
Emerald on Calcite (illustrated)
$4,000.00
Miniature, 4.9 x 2.5 x 2.2 cm
Muzo Mine, Muzo Mun., Boyaca Dept., Colombia
(3 more images)
Order Now
Details
Chrysoberyl (twinned)
BGB20-22
Chrysoberyl (twinned)
$1,800.00
Miniature, 3.2 x 3.0 x 2.5 cm
Espirito Santo, Brazil
(1 more images)
Order Now
Details
Beryl var. Aquamarine
BGB20-23
Beryl var. Aquamarine
$2,250.00
Small Cabinet, 7.5 x 1.7 x 1.5 cm
Medina, Jequitinhonha Valley, Minas Gerais, Brazil
(2 more images)
Order Now
Details
Gormanite with Albite and Quartz
BGB20-24
Gormanite with Albite and Quartz
$1,800.00
Small Cabinet, 6.5 x 5.5 x 4.4 cm
Linopolis, Divino das Laranjeiras, Minas Gerais, Brazil
(3 more images)
Order Now
Details
Amblygonite (twinned) with Albite
BGB20-26
Amblygonite (twinned) with Albite
$7,500.00
Small Cabinet, 5.5 x 5.5 x 2.8 cm
Linopolis, Divino das Laranjeiras, Minas Gerais, Brazil
(3 more images)
Order Now
Details
Parisite-(La)
BGB20-28
Parisite-(La)
$4,500.00
Miniature, 5.0 x 1.8 x 1.5 cm
Mula Mine, Tapera, Novo Horizonte, Bahia, Brazil
(1 more images)
Order Now
Details
Spessartine Garnet
BGB20-29
Spessartine Garnet
$3,500.00
Miniature, 4.6 x 3.3 x 3.0 cm
Navegadora Claim, Penha do Norte, Conselheiro Pena, Minas Gerais, Brazil
(2 more images)
Order Now
Details
Rose Quartz
BGB20-31
Rose Quartz
$7,500.00
Small Cabinet, 9.0 x 7.1 x 4.5 cm
Ilha Claim, Taquaral, Itinga, Minas Gerais, Brazil
(2 more images)
Order Now
Details
Tantalite-(Mn)
BGB20-34
Tantalite-(Mn)
$12,000.00
Small Cabinet, 6.4 x 5.7 x 3.7 cm
Alto do Giz Pegmatite, Equador, Rio Grande do Norte, Brazil
Order Now
Details
Brazilianite
BGB20-33
Brazilianite
$2,850.00
Small Cabinet, 6.6 x 5.0 x 2.2 cm
Linopolis, Divino das Laranjeiras, Minas Gerais, Brazil
(1 more images)
Order Now
Details
Emerald with Biotite and Graphite
BGB20-35
Emerald with Biotite and Graphite
$8,500.00
Small Cabinet, 8.2 x 7.5 x 4.0 cm
Nova Era, Minas Gerais, Brazil
(2 more images)
Order Now
Details
Topaz
BGB20-36
Topaz
$750.00
Small Cabinet, 5.5 x 4.5 x 3.4 cm
Medina, Jequitinhonha Valley, Minas Gerais, Brazil
(1 more images)
Order Now
Details
Tantalite-(Fe) with Tantalite-(Mn) - illustrated
BGB20-37
Tantalite-(Fe) with Tantalite-(Mn) - illustrated
$4,000.00
Miniature, 4.0 x 3.5 x 2.3 cm
Alto da Cruz, Equador, Rio Grande do Norte, Brazil
(3 more images)
Order Now
Details
Brazilianite (type locality and find, 1940s)
BGB20-38
Brazilianite (type locality and find, 1940s)
$1,800.00
Thumbnail, 2.6 x 2.3 x 1.8 cm
Corrego Frio mine, Linopolis, Divino das Laranjeiras, Minas Gerais, Brazil
(2 more images)
Order Now
Details
Elbaite Tourmaline  (illustrated)
BGB20-01
Elbaite Tourmaline (illustrated)
Thumbnail, 2.9 x 1.1 x 1.0 cm
Barra do Salinas, Coronel Murta, Minas Gerais, Brazil
(4 more images)
SOLD
Details
Rose Quartz flower atop Quartz  (illustrated)
BGB20-02
Rose Quartz flower atop Quartz (illustrated)
Miniature, 4.1 x 2.5 x 2.2 cm
Taquaral, Itinga, Minas Gerais, Brazil
(3 more images)
SOLD
Details
Tantalite-(Fe)  (illustrated)
BGB20-08
Tantalite-(Fe) (illustrated)
Miniature, 3.7 x 3.5 x 2.1 cm
Parelhas, Rio Grande do Norte, Brazil
(2 more images)
SOLD
Details
Euclase  (illustrated)
BGB20-10
Euclase (illustrated)
Thumbnail, 2.4 x 1.3 x 1.2 cm
Equador, Rio Grande do Norte, Brazil
(2 more images)
SOLD
Details
Quartz with Rutile and Hematite  (illustrated)
BGB20-13
Quartz with Rutile and Hematite (illustrated)
Small Cabinet, 7.0 x 3.4 x 2.2 cm
Novo Horizonte, Bahia, Brazil
(3 more images)
SOLD
Details
  • « Prev
  • 1
  • 2
  • Next »
1-30 of 38 Items
SEE OUR UPCOMING SHOWS
Featured in The Wisdom Pocket Blog
History of Specimen Mining at Hardangervidda, Norway
Little Wonders: Connoisseur Thumbnails in the Contemporary Collector Market
The Jack Halpern Collection
F. John Barlow Collection: A Modern Mineral Connoisseur
The Miguel Romero Collection of Mexican Minerals
Rare Chalcopyrite Balls from Daye, China
Tourmaline: Most Colorful in the World?
10 Facts You Didn’t Know About Gold, Part 1
The New Arkenstone Gallery
Tips for Buying Rare Rocks and Minerals Online
SHOP
  • New Galleries
  • Themed Galleries
  • The Vault
  • Order Specimens
LEARN
  • About Us
  • Events
  • Minerals in the Media
  • Privacy Policy
  • Terms and Conditions
  • Wisdom Pocket Blog
CONTACT US
  • PO Box 830460 - Richardson, TX - 75083
  • (972) 437-2492
  • info@iRocks.com
COPYRIGHT NOTICE - Please note that any images, photos, or text (unless otherwise stated) are property of The Arkenstone, iRocks.com, and cannot be used without our permission. Having said that, we're quite happy to work with media, educators, and other organizations to provide images. Please e-mail us at info@iRocks.com with a link where you found the image you wish to use and your intended purpose for the image.