GIA Gem Project
Various Gems (Barite - Cuprite)

Brazilianite
Photo by Robert Weldon/GIA, courtesy Dr. E. J. Gübelin Collection
GIA Collection 33942
Among the collection assembled by Dr. Edward Gübelin are a number of uncommon gemstones from many worldwide localities. Documents, like the ones below, present information on gemstones that range from occasional use in jewelry to those that are quite rare and seldom faceted because of the lack of suitable starting material.


35345

7.25 ct Barite
France (PDF)

 
34335
13.59 ct Barite from Kenya
13.59 ct Barite
Kenya (PDF)

 
34691

11.91 ct Barite
Namibia (PDF)

 
35344
6.99 ct Barite from United Kingdom
6.99 ct Barite
The United Kingdom (PDF)

 
35167

7.55 ct Barite
The United States (PDF)

 
35337
2.60 ct Bastnasite from Pakistan
2.60 ct Bastnäsite
Pakistan (PDF)

 
33928
3.36 ct Benitoite from United States
3.36 ct Benitoite
The United States (PDF)

 
35170
3.48 ct Benitoite from United States
3.48 ct Benitoite
The United States (PDF)

 
33927
3.77 ct Benitoite from United States
3.77 ct Benitoite
The United States (PDF)

 
33936
5.68 ct Beryllonite from United States
5.68 ct Beryllonite
The United States (PDF)

 
35350
7.82 ct Beryllonite from United States
7.82 ct Beryllonite
The United States (PDF)

 
33939
8.12 ct Beryllonite from United States
8.12 ct Beryllonite
The United States (PDF)

 
35173

13.80 ct Beryllonite
The United States (PDF)

 
33942
11.91 ct Brazilianite from Brazil
11.91 ct Brazilianite
Brazil (PDF)

 
33948
14.39 ct Brazilianite from Brazil
14.39 ct Brazilianite
Brazil (PDF)

 
34271
17.33 ct Brazilianite from Brazil
17.33 ct Brazilianite
Brazil (PDF)

 
35311

20.18 ct Brucite
The United States (PDF)

 
35353
1.32 ct Burbankite from Canada
1.32 ct Burbankite
Canada (PDF)

 
35308
33.52 ct Aragonite from Czech Republic
33.52 ct Calcite
The Czech Republic (PDF)

 
35416

18.59 ct Calcite
Mexico (PDF)

 
35415
23.58 ct Calcite from Mexico
23.58 ct Calcite
Mexico (PDF)

 
34439

27.90 ct Calcite
Mexico (PDF)

 
35429
6.21 ct Calcite from Spain
6.21 ct Calcite
Spain (PDF)

 
35570

9.01 ct Cassiterite
China (PDF)

 
34788

4.07 ct Cassiterite
Sri Lanka (PDF)

 
35366
1.97 ct Catapleiite from Canada
1.97 ct Catapleiite
Canada (PDF)

 
35361
16.34 ct Celestite from Madagascar
16.34 ct Celestite
Madagascar (PDF)

 
35176

11.52 ct Celestite
The United States (PDF)

 
35313

42.13 ct Cerussite
Morocco (PDF)

 
35368
1.34 ct Childrenite from Brazil
1.34 ct Childrenite
Brazil (PDF)

 
33792

17.64 ct Chrysoberyl
Brazil (PDF)

 
33799

6.28 ct Chrysoberyl
Myanmar (PDF)

 
33800
5.13 ct Chrysoberyl
5.13 ct Chrysoberyl
Locality not stated (PDF)

 
34797
5.25 ct Chrysoberyl  from Sri Lanka
5.25 ct Chrysoberyl
Sri Lanka (PDF)

 
34792
10.15 ct Chrysoberyl from Sri Lanka
10.15 ct Chrysoberyl
Sri Lanka (PDF)

 
34800
16.02 ct Chrysoberyl from Sri Lanka
16.02 ct Chrysoberyl
Sri Lanka (PDF)

 
34313
2.68 ct Chrysoberyl – Alexandrite from Brazil
2.68 ct Chrysoberyl - Alexandrite
Brazil (PDF)

 
33805
3.43 ct Chrysoberyl – Alexandrite
3.43 ct Chrysoberyl - Alexandrite
Locality not stated (PDF)

 
33809

2.85 ct Chrysoberyl - Alexandrite
Russia (PDF)

 
35557

7.97 ct Cinnabar
China (PDF)

 
35514
19.87 ct Cinnabar from China
19.87 ct Cinnabar
China (PDF)

 
35521
20.52 ct Cinnabar from China
20.52 ct Cinnabar
China (PDF)

 
35433
1.52 ct Clinohumite from Tajikistan
1.52 ct Clinohumite
Tajikistan (PDF)

 
35516

5.42 ct Cobaltian Calcite
The Democratic Republic
of Congo (PDF)

 
35428
7.93 ct Cobaltocalcite from Spain
7.93 ct Cobaltocalcite
Spain (PDF)

 
34351
7.78 ct Colemanite from Kenya
7.78 ct Colemanite
Kenya (PDF)

 
34405
2.69 ct Cordierite (Iolite) from Madagascar
2.69 ct Cordierite - Iolite
Madagascar (PDF)

 
34555
10.14 ct Cordierite (Iolite) from Myanmar
10.14 ct Cordierite - Iolite
Myanmar (PDF)

 
34802

8.77 ct Cordierite - Iolite
Sri Lanka (PDF)

 
35440
4.73 ct Crocoite from Australia
4.73 ct Crocoite
Australia (PDF)

 
35441
5.40 ct Crocoite from Australia
5.40 ct Crocoite
Australia (PDF)

 
34705

16.64 ct Cuprite
Namibia (PDF)

 

GIA Gem Project

GIA has studied more than 400 important gemstones in the Edward J. Gübelin Gem Collection and is committed to sharing this repository of gemological information.

Go to Index

Corundum

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Beryl

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Garnet

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Spinel

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Tourmaline

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Zircon

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