וּלְמִזְבַּ֧ח הַקְּטֹ֛רֶת זָהָ֥ב מְזֻקָּ֖ק בַּמִּשְׁקָ֑ל וּלְתַבְנִ֣ית הַמֶּרְכָּבָ֗ה הַכְּרֻבִ֤ים זָהָב֙ לְפֹ֣רְשִׂ֔ים וְסֹכְכִ֖ים עַל־אֲר֥וֹן בְּרִית־יְהוָֽה׃
and for the altar of incense refined gold by weight; and gold for the pattern of the chariot, even the cherubim, that spread out their wings, and covered the ark of the covenant of the LORD.
Jerusalem Talmud Yoma
98Babli 44b, Midrash Hazita (Shir rabba) 3(17) on 3:9, Num. rabba 12. There are seven kinds of gold: good gold 99Gen.2:12., pure gold100Ex. 24:11,24; 25:17,32,36,37; 37:2,6, closed gold101IK. 7:50., Mufaz gold102Dan. 10:5., refined gold103“Refined” is found in the Bible only applied to silver, see the Halakhah., drawn gold1041K. 10:10, 17, 2Chr. 9:15, 16., Parwayim gold1052Chr. 3:6..