Shekel used to Weigh: Gold
Source: Nav
Genesis 24:22
And after the camels had finished drinking, he took out a gold ring weighing a beka, and two gold bracelets for her wrists weighing ten shekels.
Numbers 7:14, 20–86
one gold dish weighing ten shekels, filled with incense; / one gold dish weighing ten shekels, filled with incense; / The twelve gold dishes filled with incense weighed ten shekels each, according to the sanctuary shekel. The total weight of the gold dishes was a hundred and twenty shekels.
Joshua 7:21
When I saw among the spoils a beautiful cloak from Shinar, two hundred shekels of silver, and a bar of gold weighing fifty shekels, I coveted them and took them. They are hidden in the ground inside my tent, with the silver underneath.”
1 Kings 10:16
King Solomon made two hundred large shields of hammered gold; six hundred shekels of gold went into each shield.