GIA Gem Project
Various gems
(Taaffeite - Zoisite)


Taaffeite
Photo by Robert Weldon/GIA, courtesy Dr E. J. Gübelin Collection
GIA Collection 34186
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 jewellery to those that are quite rare and seldom faceted because of the lack of suitable starting material.

34665
6.23 ct Taaffeite from Myanmar
6.23 ct Taaffeite from Myanmar (PDF)

34186
1.23 ct Taaffeite from Sri Lanka
1.23 ct Taaffeite from Sri Lanka (PDF)

34188
2.26 ct Taaffeite from Sri Lanka
2.26 ct Taaffeite from Sri Lanka (PDF)


34196
3.23 ct Taaffeite from Sri Lanka
3.23 ct Taaffeite from Sri Lanka (PDF)


34933

5.32 ct Taaffeite from Sri Lanka (PDF)


34183
11.23 ct Taaffeite from Sri Lanka
11.23 ct Taaffeite from Sri Lanka (PDF)


34931

11.23 ct Taaffeite from Sri Lanka (PDF)


34298
4.18 ct Titanite – Sphene from Brazil
4.18 ct Titanite from Brazil (PDF)


34021
2.86 ct Titanite – Sphene from India
2.86 ct Titanite from India (PDF)


34219

3.26 ct Titanite from India (PDF)


34332
20.86 ct Titanite – Sphene from India
20.86 ct Titanite from India (PDF)


34376
5.83 ct Titanite from Kenya
5.83 ct Titanite from Kenya (PDF)


34430

7.87 ct Titanite from Madagascar (PDF)


34431
13.00 ct Titanite – Sphene from Madagascar
13.00 ct Titanite from Madagascar (PDF)


35538
0.84 ct Titanite from Mexico
0.84 ct Titanite from Mexico (PDF)


35535
1.26 ct Titanite – Sphene from Mexico
1.26 ct Titanite from Mexico (PDF)


34208

4.13 ct Titanite from Mexico (PDF)


34228

6.96 ct Titanite from Mexico (PDF)


34216
7.85 ct Titanite from Mexico
7.85 ct Titanite from Mexico (PDF)


34206
8.18 ct Titanite from Mexico
8.18 ct Titanite from Mexico (PDF)


34221

10.00 ct Titanite from Mexico (PDF)


34226
3.11 ct Titanite from Pakistan
3.11 ct Titanite from Pakistan (PDF)


34980
2.61 ct Titanite from Switzerland
2.61 ct Titanite from Switzerland (PDF)


33580

5.11 ct Topaz from Brazil (PDF)


33566

7.50 ct Topaz from Brazil (PDF)


33563

9.36 ct Topaz from Brazil (PDF)


33568

13.00 ct Topaz from Brazil (PDF)


33572

14.33 ct Topaz from Brazil (PDF)


34304

14.48 ct Topaz from Brazil (PDF)


33551

19.84 ct Topaz from Brazil (PDF)


33584
18.41 ct Topaz from Pakistan
18.41 ct Topaz from Pakistan (PDF)


33552
14.32 ct Topaz from Russia
14.32 ct Topaz from Russia (PDF)


34944
21.02 ct Topaz from Sri Lanka
21.02 ct Topaz from Sri Lanka (PDF)


33547

21.84 ct Topaz from Sri Lanka (PDF)


35250

25.04 ct Topaz from Zimbabwe (PDF)


35258
25.67 ct Topaz from Zimbabwe
25.67 ct Topaz from Zimbabwe (PDF)


35543
3.17 ct Vesuvianite – Idocrase from Kenya
3.17 ct Vesuvianite from Kenya (PDF)


34383

3.61 ct Vesuvianite from Tanzania (PDF)


34385
4.38 ct Vesuvianite from Tanzania
4.38 ct Vesuvianite from Tanzania (PDF)


34384

4.92 ct Vesuvianite from Tanzania (PDF)


34386
8.23 ct Vesuvianite from Tanzania
8.23 ct Vesuvianite from Tanzania (PDF)


35242
0.82 ct Vivianite from the United States
0.82 ct Vivianite from the United States (PDF)


34732

4.41 ct Willemite from Namibia (PDF)


35547

2.42 ct Willemite from the United States (PDF)


35546
9.54 ct Willemite from the United States
9.54 ct Willemite from the United States (PDF)


34123
10.15 ct Willemite from the United States
10.15 ct Willemite from the United States (PDF)


34733

6.40 ct Wulfenite from Namibia (PDF)


35554
2.03 ct Wulfenite from the United States
2.03 ct Wulfenite from the United States (PDF)


35247
5.41 ct Wulfenite from the United States
5.41 ct Wulfenite from the United States (PDF)


35520
16.05 ct Zincite from Poland
16.05 ct Zincite from Poland (PDF)


35204
7.36 ct Zincite from the United States
7.36 ct Zincite from the United States (PDF)


34127

12.20 ct Zoisite, Locality not stated (PDF)


35075

2.96 ct Zoisite from Tanzania (PDF)


35072


3.20 ct Zoisite from Tanzania (PDF)


35620

5.00 ct Zoisite from Tanzania (PDF)


35522
6.11 ct Zoisite from Tanzania
6.11 ct Zoisite from Tanzania (PDF)


34134

7.10 ct Zoisite from Tanzania (PDF)


34129

8.85 ct Zoisite - Tanzanite from Tanzania (PDF)


35038

11.18 ct Zoisite – Tanzanite from Tanzania (PDF)


34128
11.98 ct Zoisite from Tanzania
11.98 ct Zoisite – Tanzanite from Tanzania (PDF)