GIA Gem Project
Various Gems
(Kornerupine - Natrolite)

Kornerupine
Photo by Robert Weldon/GIA, courtesy Dr. E. J. Gübelin Collection
GIA Collection 34365
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.


34702

2.60 ct Jeremejevite
Namibia (PDF)
                                       
 
34365
1.64 ct Kornerupine from Kenya
1.64 ct Kornerupine
Kenya (PDF)

 
34366
1.80 ct Kornerupine from Kenya
1.80 ct Kornerupine
Kenya (PDF)

 
34368

5.54 ct Kornerupine
Kenya (PDF)

 
34067
3.96 ct Kornerupine from Sri Lanka
3.96 ct Kornerupine
Sri Lanka (PDF)

 
34848

4.90 ct Kornerupine
Sri Lanka (PDF)

 
34069
7.11 ct Kornerupine from Sri Lanka
7.11 ct Kornerupine
Sri Lanka (PDF)

 
34851

7.43 ct Kornerupine
Sri Lanka (PDF)

 
34850

7.86 ct Kornerupine
Sri Lanka (PDF)

 
34063
11.19 ct Kornerupine from Sri Lanka
11.19 ct Kornerupine
Sri Lanka (PDF)

 
35016
4.39 ct Kornerupine from Tanzania
4.39 ct Kornerupine
Tanzania (PDF)

 
34274
6.10 ct Kyanite from Brazil
6.10 ct Kyanite
Brazil (PDF)

 
34276

7.81 ct Kyanite
Brazil (PDF)

 
33854
8.37 ct Kyanite from Brazil
8.37 ct Kyanite
Brazil (PDF)

 
33849

18.43 ct Kyanite
Brazil (PDF)

 
34352

4.44 ct Kyanite
Kenya (PDF)

 
33835
2.77 ct Kyanite from Madagascar
2.77 ct Kyanite
Madagascar (PDF)

 
35630

15.30 ct Kyanite
Myanmar (PDF)

 
33839

3.68 ct Kyanite
Nepal (PDF)

 
34742
5.78 ct Kyanite from Nepal
5.78 ct Kyanite
Nepal (PDF)

 
34964

3.85 ct Kyanite
Switzerland (PDF)

 
34993
15.81 ct Kyanite from Tanzania
15.81 ct Kyanite
Tanzania (PDF)

 
35283
3.55 ct Kyanite from Zimbabwe
3.55 ct Kyanite
Zimbabwe (PDF)

 
35287

5.05 ct Kyanite
Zimbabwe (PDF)

 
35579
3.51 ct Leadhillite from Namibia
3.51 ct Leadhillite
Namibia (PDF)

 
35442

1.52 ct Leucite
Italy (PDF)

 
35411
12.93 ct Magnesite from Brazil
12.93 ct Magnesite
Brazil (PDF)

 
34483

3.51 ct Manganotantalite
Mexico (PDF)

 
35448
5.51 ct Manganotantalite from Mozambique
5.51 ct Manganotantalite
Mozambique (PDF)

 
35449
9.90 ct Manganotantalite from Pakistan
9.90 ct Manganotantalite
Pakistan (PDF)

 
35453
4.46 ct Mimetite from Namibia
4.46 ct Mimetite
Namibia (PDF)

 
35581

1.01 ct Monazite
Brazil (PDF)

 
35456
1.34 ct Montebrasite from Brazil
1.34 ct Montebrasite
Brazil (PDF)

 
34258

46.28 ct Montebrasite
Brazil (PDF)

 
35836
3.58 ct Musgravite (Magnesiotaaffeite) (Locality not stated)
3.58 ct Musgravite (Magnesiotaaffeite)
Locality not stated (PDF)

 
35190

4.54 ct Natrolite
The United States (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

Read More

Beryl

Read More

Garnet

Read More

Spinel

Read More

Tourmaline

Read More

Zircon

Read More

You Might Also Like

Find a Retailer
learn more
Shop the Campus Store
Learn More
Quality Assurance Benchmarks
Learn More
Gems & Gemology
G&G Fall 2017 Edition
Learn more