Spain
units of mass for precious metals

Gold

According to Altés (1832), continued use of this system in Spain was prohibited by a royal ordinance of 31 August 1731, but Doursther (1840, page 92) personally witnessed its survival in Chile and Peru in 1838.

marco of Castile

castellano

50

tomin

8

400

grano

12

96

4800

47.9 mg

575 mg

4.6 g

230.0 g

Silver

marco of Castile

onça

8

ochava

8

64

adarme

2

16

128

tomin

3

6

48

384

grano

12

36

72

576

4608

49.9 mg

599 mg

1.80 g

3.59 g

28.75 g

230.0 g

Silversmiths also divided the tomin into 3 quilates.

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