GIA Gem Project
Various Gems
(Olivine - Rutile)

Peridot
Photo by Robert Weldon/GIA, courtesy Dr. E. J. Gübelin Collection
GIA Collection 33884
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.


33884

18.72 ct Olivine (Forsterite) - 
Peridot
Egypt (PDF)

 
33885
MF - 19.46 ct Peridot from Egypt
19.46 ct Olivine (Forsterite) - 
Peridot
Egypt (PDF)

 
33879

28.99 ct Olivine (Forsterite) - 
Peridot
Myanmar (PDF)

 
35195

5.92 ct Olivine (Forsterite) - 
Peridot
The United States (PDF)

 
33367

6.05 ct Opal
Mexico (PDF)

 
34464

6.59 ct Opal
Mexico (PDF)

 
35459

5.38 ct Parisite
Colombia (PDF)

 
35196

15.94 ct Periclase
The United States (PDF)

 
35474
11.14 ct Petalite from Brazil
11.14 ct Petalite
Brazil (PDF)

 
34291
16.48 ct Petalite from Brazil
16.48 ct Petalite
Brazil (PDF)

 
35463

41.12 ct Petalite
Brazil (PDF)

 
35461
17.60 ct Petalite (Locality not stated)
17.60 ct Petalite
Locality not stated (PDF)

 
35633

2.92 ct Pezzottaite
Madagascar (PDF)

 
35636
4.15 ct Pezzottaite from Madagascar
4.15 ct Pezzottaite
Madagascar (PDF)

 
34089
33.15 ct Phenakite from Brazil
33.15 ct Phenakite
Brazil (PDF)

 
34094
15.53 ct Phenakite from Russia
15.53 ct Phenakite
Russia (PDF)

 
34861

5.81 ct Phenakite
Sri Lanka (PDF)

 
35478

16.48 ct Phosgenite
Morocco (PDF)

 
35466
25.56 ct Phosgenite from Morocco
25.56 ct Phosgenite
Morocco (PDF)

 
35481
5.12 ct Phosphophyllite from Bolivia
5.12 ct Phosphophyllite
Bolivia (PDF)

 
35207

2.69 ct Pollucite
The United States (PDF)

 
35623
31.53 ct Powellite from India
31.53 ct Powellite
India (PDF)

 
35486

8.56 ct Prehnite
Australia (PDF)

 
35485
10.55 ct Prehnite from Australia
10.55 ct Prehnite
Australia (PDF)

 
35468
13.61 ct Prehnite (Locality not stated)
13.61 ct Prehnite
Locality not stated (PDF)

 
35467

15.18 ct Prehnite
South Africa (PDF)

 
35208

11.10 ct Prehnite
The United States (PDF)

 
35469
12.07 ct Proustite from Chile
12.07 ct Proustite
Chile (PDF)

 
35015

4.87 ct Pyroxene (Bronzite)
Tanzania (PDF)

 
34414

4.52 ct Pyroxene (Diopside)
Madagascar (PDF)

 
34560

8.34 ct Pyroxene (Diopside)
Myanmar (PDF)

 
34565
14.19 ct Kornerupine from Myanmar
14.19 ct Pyroxene (Diopside)
Myanmar (PDF)

 
34847

13.55 ct Pyroxene (Diopside)
Sri Lanka (PDF)

 
35381

3.70 ct Pyroxene (Diopside)
The United States (PDF)

 
35385

0.91 ct Pyroxene (Diopside) - 
Chrome Diopside
Kenya (PDF)

 
34413
9.15 ct Pyroxene (Enstatite) from Madagascar
9.15 ct Pyroxene (Enstatite)
Madagascar (PDF)

 
34561
1.50 ct Pyroxene (Enstatite) from Myanmar
1.50 ct Pyroxene (Enstatite)
Myanmar

 
34846

2.90 ct Pyroxene (Enstatite)
Sri Lanka (PDF)

 
34826

6.32 ct Pyroxene (Enstatite)
Sri Lanka (PDF)

 
34819

9.98 ct Pyroxene (Enstatite)
Sri Lanka (PDF)

 
34827

12.05 ct Pyroxene (Enstatite)
Sri Lanka (PDF)

 
34820

16.31 ct Pyroxene (Enstatite)
Sri Lanka (PDF)

 
35004
13.38 ct Pyroxene (Enstatite) from Tanzania
13.38 ct Pyroxene (Enstatite)
Tanzania (PDF)

 
34034
6.47 ct Hypersthene from India
6.47 ct Pyroxene (Hypersthene)
India (PDF)

 
34644

9.72 ct Pyroxene (Jadeite)
Myanmar (PDF)

 
35584
8.54 ct Pyroxmangite from Brazil
8.54 ct Pyroxmangite
Brazil (PDF)

 
34442

30.23 ct Quartz
Mexico (PDF)

 
33422
56.19 ct Quartz
56.19 ct Quartz
Locality not stated (PDF)

 
33388
3.76 ct Quartz (Amethyst) from Brazil
23.76 ct Quartz - Amethyst
Brazil (PDF)

 
35264

10.95 ct Quartz - Amethyst
Zimbabwe (PDF)

 
35001
4.94 ct Quartz - Chalcedony (Chrysoprase) from Tanzania
4.94 ct Quartz - Chalcedony
(Chrysoprase)
Tanzania (PDF)

 
33423
26.57 ct Quartz (Citrine) (Locality not stated)
26.57 ct Quartz - Citrine
Locality not stated (PDF)

 
35299

8.10 ct Quartz - Citrine
Zimbabwe (PDF)

 
35257

11.11 ct Quartz - Citrine
Zimbabwe (PDF)

 
33385
29.04 ct Quartz (Rose Quartz)
29.04 ct Quartz - Rose Quartz
Locality not stated (PDF)

 
35019
5.21 ct Rhodochrosite from South Africa
5.21 ct Rhodochrosite
South Africa (PDF)

 
34709

11.32 ct Rhodochrosite
South Africa (PDF)

 
34679

17.77 ct Rhodochrosite
South Africa (PDF)

 
35491
4.62 ct Rhodochrosite from United States
4.62 ct Rhodochrosite
The United States (PDF)

 
35209

9.06 ct Rhodochrosite
The United States (PDF)

 
35212

10.50 ct Rhodochrosite
The United States (PDF)

 
35496
2.09 ct Rhodonite from Australia
2.09 ct Rhodonite
Australia (PDF)

 
34865

4.69 ct Rutile
Sri Lanka (PDF)

 
34855

5.64 ct Rutile
Sri Lanka (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

Read More

Garnet

Read More

Spinel

Read More

Tourmaline

Read More

Zircon

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