A talent of pure gold - about 94 lbs.

Of a talent of pure gold shall he make it, with all these vessels - That is, a talent of gold in weight was used in making the candlestick, and the different vessels and instruments which belonged to it. According to Bishop Cumberland, a talent was three thousand shekels. As the Israelites brought each half a shekel, Exodus 38:26, so that one hundred talents, one thousand seven hundred and seventy-five shekels, were contributed by six hundred and three thousand five hundred and fifty persons; by halving the number of the Israelites, he finds they contributed three hundred and one thousand seven hundred and seventy-five shekels in all. Now, as we find that this number of shekels made one hundred talents, and one thousand seven hundred and seventy-five shekels over, if we subtract one thousand seven hundred and seventy-five, the odd shekels, from three hundred and one thousand seven hundred and seventy-five, we shall have for a remainder three hundred thousand, the number of shekels in one hundred talents: and if this remainder be divided by one hundred, the number of talents, it quotes three thousand, the number of shekels in each talent. A silver shekel of the sanctuary, being equal, according to Dr. Prideaux, to three shillings English, three thousand such shekels will amount to four hundred and fifty pounds sterling; and, reckoning gold to silver as fifteen to one, a talent of gold will amount to six thousand seven hundred and fifty pounds sterling: to which add two hundred and sixty-three pounds for the one thousand seven hundred and seventy-five shekels, at three shillings each, and it makes a total of seven thousand and thirteen pounds, which immense sum was expended on the candlestick and its furniture. It is no wonder, then, (if the candlestick in the second temple was equal in value to that in the ancient tabernacle), that Titus should think it of sufficient consequence to be one of the articles, with the golden table, and silver trumpets, that should be employed to grace his triumph. Their intrinsic worth was a matter of no consequence to Him whose are the silver and gold, the earth and its fullness; they had accomplished their design, and were of no farther use, either in the kingdom of providence, or the kingdom of grace. See Clarke's note on Exodus 25:31, and see Clarke's note on Exodus 38:24.

[Of] a (k) talent of pure gold shall he make it, with all these vessels.
(k) This was the talent weight of the temple, and weighed 120 pounds.

Of a talent of pure gold shall he make it, with all these vessels. The common talent weighed sixty pounds, but the sacred talent was double, and weighed one hundred and twenty pounds, as says Jarchi, and so Ben Melech: a talent of gold amounted to 5067 pounds, three shillings and ten pence of our money, according to Bishop Cumberland (d). (Assuming a troy weight of 12 ounces to a pound, and an ounce of gold worth 400 U.S., than a talent would be worth about 600,000. Editor.)
(d) Of Scripture Weights and Measures, p. 121.

a talent of pure gold--in weight equivalent to 125 lbs. troy.