Optical grade quartz; Chapter Note 71 1(a), Annex to Chapter71; Note 2(b) to Chapter 96; EN 71.04, 71.02, 7103.10
Protest 3307-92-100001; unworked semi-precious stones; rhodolite; tanzanite; subheading 7103.10.40; Explanatory Notes 71.02 and 71.03; 19 CFR 10.172
Fire opals; rough semi-precious gemstones; cut and polished semi-precious gemstones; Explanatory Notes 71.02 and 71.03; Annex to the Explanatory Notes to chapter 71; subheading 9802.00.50
The tariff classification of Nephrite Jade blocks fromCanada.
Chippewa of Lake Superior and Exemption From Import Duties; Article III, Jay Treaty
The tariff classification of Harlequin Quartz from Madagascar.
The tariff classification of Brandberg Quartz Crystal from Madagascar.
The tariff classification of Apophylite Crystal from Madagascar.
Definition of the term "cut but not set" in chapter 71
Protest No. 1303-92-100061; tumbled semi-precious gemstones; semi-precious gemstones that are otherwise worked than simply sawn or roughly shaped; subheading 7103.10.40; Explanatory Note 71.03; Gem Cutting: A Lapidary's Manual