The Lautenthal sphalerite-galena vein deposit is part of the world-class Upper Harz Pb-Zn-Ag district in the Harz uplift block of the Paleozoic Variscan fold belt in Germany. Its sphalerite-dominated mineral association was studied using bulk-ore chemistry, electron probe microanalysis, and laser ablation-ICP-mass spectrometry. Gallium and locally In are the main high-tech-relevant trace elements hosted by sphalerite, with up to 150 ppm Ga and up to 380 ppm In in hand-picked sphalerite samples (mean In/Zn, 0.70 × 10⁻³). Ore concentrates (≤ 50 kg) contain up to 65 ppm Ga and up to 109 ppm In (mean In/Zn, 0.36 × 10⁻³). Accessory Fe-Co-rich gersdorffite-1 occurs in the earlier quartz-sulfide ore stage and Sb-rich gersdorffite-2 in the later carbonate-sulfide stage. Enrichment patterns of In are either defined by overprinting textures in the Fe-richer sphalerite-1 of the earlier stage, or relate to primary growth zoning in Fe-poor sphalerite-2 of the later stage. Using the sphalerite geothermometer GGIMFis, formation temperatures (median) of sphalerite-1 were estimated at ~ 230 °C for the Lautenthal orebody and at ~ 175 °C for the Bromberg orebody, which may indicate lateral T-zonation for the earlier ore stage. Sphalerite-2 data indicate formation temperatures of ~ 185 °C (median). Copper-bearing brines of the carbonate-sulfide stage with assumed temperatures of ~ 250 °C initiated replacement of In-poor sphalerite-1 by chalcopyrite and remobilization of Zn and trace elements. Indium-rich sphalerite-2 occurs associated with calcite and fine-grained galena. A direct spatial or temporal link of ore formation to a magmatic-hydrothermal system is unlikely, which contrasts to In-rich epithermal and tin-polymetallic vein deposits worldwide.

劳滕塔尔闪锌矿-方铅矿矿脉矿床是德国古生代瓦里斯坎褶皱带哈尔茨隆起地块世界级上哈尔茨铅锌银矿区的一部分。采用散装矿石化学、电子探针微量分析和激光烧蚀-ICP-质谱法对其以闪锌矿为主的矿物组合进行了研究。镓和局部 In 是闪锌矿中主要的高科技相关微量元素，在手工挑选的闪锌矿样品中，Ga 含量高达 150 ppm，In 含量高达 380 ppm（平均 In/Zn，0.70 × 10 ^-3）。精矿（≤ 50 kg）含有高达 65 ppm Ga 和高达 109 ppm In（平均 In/Zn，0.36 × 10 ^-3）。副状富Fe-Co gersdorffite-1 出现在早期石英硫化物矿阶段，而富Sb gersdorffite-2 出现在晚期碳酸盐硫化物阶段。 In 的富集模式要么由早期富铁闪锌矿-1 中的叠印纹理定义，要么与后期贫铁闪锌矿-2 中的初生生长分区有关。使用闪锌矿地温计 GGIMFis，估计 Lautenthal 矿体的闪锌矿-1 形成温度（中值）约为 230 °C，Bromberg 矿体的闪锌矿-1 形成温度约为 175 °C，这可能表明早期矿石阶段的横向 T 地带性。 Sphalerite-2 数据表明地层温度约为 185 °C（中值）。假定温度约为 250 °C 的碳酸盐-硫化物阶段的含铜卤水开始用黄铜矿替代贫闪锌矿-1，并重新活化锌和微量元素。富铟闪锌矿-2 与方解石和细粒方铅矿伴生。矿石形成与岩浆热液系统之间不太可能存在直接的空间或时间联系，这与世界范围内富含 In 的浅成热液和锡多金属脉矿床形成鲜明对比。