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Citrine
A yellow to yellow-orange or yellow-green variety of quartz. Natural citrine is very rare. Large quantities of amethyst, usually of lesser quality, are heated to turn it yellow or orange and sold as ‘citrine’.
See:
Quartz
Citrine — specimen 0568
, photo © NMNHS
Material from ‘Repository’
18 specimens:
0065
— 0.80 ct, Brazil;
0569
— 2.40 ct, Brazil;
0413
— 0.82 ct, Brazil;
0004
— 5.89 ct, Brazil;
0367
— 0.56 ct, Brazil;
0609
— 1.13 ct, Brazil;
0184
— 1.32 ct, no locality data;
0244
— 1.27 ct, no locality data;
0568
— 8.50 ct, Brazil;
0375
— 1.06 ct, Tanzania;
0470
— 0.65 ct, Tanzania;
0712
— 4.80 ct, Tanzania;
0241
— 4.16 ct, Brazil;
0116
— 4.96 ct, Brazil;
0710
— 0.71 ct, Brazil;
0114
— 11.11 ct, Brazil;
0074
— 16.14 ct, Brazil;
0207
— 5.55 ct, Brazil.
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Gemmology — gemstones
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The specimens illustrated in this site do not exist in the collections of the National Museum of Natural History, Sofia.