{"id":51588,"date":"2026-10-23T14:47:26","date_gmt":"2026-10-23T12:47:26","guid":{"rendered":"https:\/\/zinn-giesserei-goehler.com\/guide\/germanium-properties-uses-and-forms\/"},"modified":"2026-10-23T14:48:06","modified_gmt":"2026-10-23T12:48:06","slug":"germanium-properties-uses-and-forms","status":"publish","type":"page","link":"https:\/\/zinn-giesserei-goehler.com\/en\/guide\/germanium-properties-uses-and-forms\/","title":{"rendered":"Germanium: Properties, Uses, and Forms"},"content":{"rendered":"<div class=\"wp-block-zggtheme-blocks-header\">\n            <div class = zggtheme-content-header-container>\n                <div class=\"zggtheme-content-header-image\" style=\"\">\n                    <div class=\"zggtheme-content-header-overlay\">\n                        <header class=\"page-title-container\">\n                            <h1 class=\"page-title\">\n                                Germanium: Properties, Uses, and Forms\n                            <\/h1>\n                        <\/header>\n                        \n                        \n                    <\/div>\n                <\/div>\n            <\/div>\n            <\/div><div class=\"zggtheme-page-layout zggtheme-page-layout-left-ltov zggtheme-page-layout-right-vtox wp-block-zggtheme-blocks-page-layout\">\n<div class=\"zggtheme-page-layout-area zggtheme-page-layout-left\">\n<nav class=\"zggtheme-toc zggtheme-container wp-block-zggtheme-blocks-table-of-contents\" aria-labelledby=\"zggtheme-toc-1-title\" data-zggtheme-toc><h2 class=\"zggtheme-toc-title\" id=\"zggtheme-toc-1-title\"><span class=\"zggtheme-toc-title-text\">Inhalt<\/span><button type=\"button\" class=\"zggtheme-toc-toggle\" aria-expanded=\"true\" aria-controls=\"zggtheme-toc-1-list\" hidden><span class=\"zggtheme-toc-toggle-text\">Inhalt<\/span><\/button><\/h2><ol class=\"zggtheme-toc-list\" id=\"zggtheme-toc-1-list\" role=\"list\"><li class=\"zggtheme-toc-item\"><a class=\"zggtheme-toc-link\" href=\"#platz-im-periodensystem-und-entdeckung\">Place in the Periodic Table and Discovery<\/a><\/li><li class=\"zggtheme-toc-item\"><a class=\"zggtheme-toc-link\" href=\"#eigenschaften-von-germanium\">Properties of Germanium<\/a><\/li><li class=\"zggtheme-toc-item\"><a class=\"zggtheme-toc-link\" href=\"#verwendung-von-germanium\">Uses of Germanium<\/a><\/li><li class=\"zggtheme-toc-item\"><a class=\"zggtheme-toc-link\" href=\"#vorkommen-und-versorgungslage\">Occurrence and Supply Situation<\/a><\/li><li class=\"zggtheme-toc-item\"><a class=\"zggtheme-toc-link\" href=\"#reinmetall-und-organisches-germanium\">Elemental Metal and Organic Germanium<\/a><\/li><li class=\"zggtheme-toc-item\"><a class=\"zggtheme-toc-link\" href=\"#lieferformen-und-reinheit\">Delivery Forms and Purity<\/a><\/li><li class=\"zggtheme-toc-item\"><a class=\"zggtheme-toc-link\" href=\"#faq\">Frequently Asked Questions about Germanium<\/a><\/li><\/ol><\/nav>\n<\/div>\n\n<div class=\"zggtheme-page-layout-area zggtheme-page-layout-main\">\n\n<div class=\"wp-block-group zgg-milky-glas-container\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"zgg-rat__meta wp-block-paragraph\">Last reviewed on October 23, 2026<\/p>\n\n\n<div class=\"wp-block-zggtheme-blocks-notice\">        <div class=\"zgg-notice is-notice\" >\n                        <div class=\"zgg-notice-inner\">\n                <p class=\"zgg-notice-text is-notice\">\n                    Germanium shines gray like a metal but is hard and brittle, classified today as a semiconductor. This metalloid, with atomic number 32, melts at 938.25 degrees Celsius and is found in fiber optics and infrared optics, as well as in semiconductor components and solar cells. In our shop, you can purchase the high-purity elemental metal as round rods. It has little to do with organic germanium, which is marketed as a capsule.                                    <\/p>\n            <\/div>\n        <\/div>\n        <\/div>\n\n\n<h2 id=\"platz-im-periodensystem-und-entdeckung\" class=\"wp-block-heading\">Place in the Periodic Table and Discovery<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">It already had its place in the periodic table directly below silicon before anyone held it in their hand.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dmitri Mendeleev had left a gap at this position, naming the missing element Eka-silicon. He predicted an atomic mass of approximately 72 and a specific gravity of 5.5 for it. Clemens Winkler identified the element in 1886 in Freiberg, Saxony, in the mineral argyrodite, determining its values as 72.32 u and 5.47 g\/cm\u00b3.<\/p>\n\n\n\n<h2 id=\"eigenschaften-von-germanium\" class=\"wp-block-heading\">Properties of Germanium<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Germanium melts at 938.25 degrees Celsius and only boils at 2,833 degrees Celsius; its density is 5.323 grams per cubic centimeter. Tin melts at around 232 degrees Celsius, and zinc at around 419 degrees Celsius. Germanium falls between aluminum, at around 660 degrees Celsius, and copper, at around 1,085 degrees Celsius.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Its behavior at the transition between solid and liquid is unusual. Like water, solid germanium is less dense than its melt, meaning it expands upon solidification.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Chemically, germanium is quite unreactive. It remains stable in air at room temperature and is not attacked by hydrochloric acid. However, concentrated nitric acid and hot concentrated sulfuric acid dissolve it. In its crystal structure, germanium atoms arrange themselves like those in diamond. Mechanically, its brittleness is noticeable, as germanium breaks under impact or bending instead of deforming.<\/p>\n\n\n\n<h2 id=\"verwendung-von-germanium\" class=\"wp-block-heading\">Uses of Germanium<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In the USA, fiber optics is the largest application area, followed by infrared optics, semiconductors and solar cells, and radiation detectors. Depending on the application, the metal or a compound is used.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Application<\/th><th>Form Used<\/th><th>Purpose<\/th><\/tr><\/thead><tbody><tr><td>Fiber optics for data and telecommunications<\/td><td>Germanium dioxide and germanium tetrachloride<\/td><td>Layer in the quartz glass of the fiber<\/td><\/tr><tr><td>Infrared optics in thermal imaging cameras and night vision devices<\/td><td>Germanium metal as a lens or window<\/td><td>Allows heat radiation to pass through<\/td><\/tr><tr><td>Solar cells in space travel<\/td><td>Germanium wafers<\/td><td>Substrate for multi-junction solar cells<\/td><\/tr><tr><td>Radiation detectors<\/td><td>High-purity germanium single crystals<\/td><td>Detection of radiation<\/td><\/tr><tr><td>PET plastic<\/td><td>Germanium dioxide<\/td><td>Catalyst in production<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">For some of these applications, alternative materials exist. In certain electronic applications, silicon or gallium arsenide can take its place; in infrared optics, chalcogenide glass can be used; and antimony and titanium also serve as catalysts for plastics.<\/p>\n\n\n\n<h2 id=\"vorkommen-und-versorgungslage\" class=\"wp-block-heading\">Occurrence and Supply Situation<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Germanium occurs in certain zinc ores and in lead-zinc-copper ores, as well as in lignite deposits. It is extracted as a byproduct, for example, during the processing of zinc concentrates. Some of it comes from recycling, as chips from the processing of infrared optics, waste from fiber optic manufacturing, and germanium wafers from solar cell production are reprocessed.<\/p>\n\n\n\n<h2 id=\"reinmetall-und-organisches-germanium\" class=\"wp-block-heading\">Elemental Metal and Organic Germanium<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Those looking for effects of germanium quickly come across capsules containing organic germanium, such as Germanium-132. They share only the element with the elemental metal.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In 2000, the then-responsible Federal Institute explicitly warned against Germanium-132 capsules as dietary supplements. Even small amounts could damage the lungs, liver, nerves, and kidneys, and in at least five cases, prolonged, regular intake led to death. According to the institute, deficiency symptoms due to insufficient germanium are not known.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Legally, germanium is also not permitted as a mineral to be added to dietary supplements. Directive 2002\/46\/EC and the German Food Supplement Ordinance only allow listed minerals and their approved compounds for this purpose, and germanium is not on this list. The germanium round rods in our shop are a material for technology and research, not a dietary supplement.<\/p>\n\n\n\n<h2 id=\"lieferformen-und-reinheit\" class=\"wp-block-heading\">Delivery Forms and Purity<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In our <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt-kategorie\/pure-metals\/germanium-2\/\">Germanium<\/a> category, you will find the element with a purity of 99.999 percent, or 5N in technical terms. The <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt\/germanium-round-rods-5n-ge99-999\/\">Germanium Round Rods 5N<\/a> are available with diameters of 3 or 8 millimeters and lengths of 50 or 100 millimeters. An 8-millimeter diameter rod weighs between 13.3 and 26.6 grams, depending on its length.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">We can procure other lengths, diameters, or germanium as granules upon request. For institutions and businesses, a verified customer account is available with purchase on account and payment terms of up to 30 days. If you need other elements for experiments in addition to germanium, you will also find <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt\/silicon-6n-round-rods\/\">Silicon 6N Round Rods<\/a>, <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt\/gallium-4n-round-rods\/\">Gallium as a Round Rod<\/a>, and an <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt\/indium-rod\/\">Indium Round Rod<\/a> in rod form. The entire selection of rod material can be found under <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt-kategorie\/profiles\/round-rods\/\">Round Rods<\/a>, and all elements under <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt-kategorie\/pure-metals\/\">Overview of Pure Metals<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">You can order germanium directly from the online shop for gross merchandise values up to 6,000 Euros; shipping within Germany is free. Larger quantities are delivered upon request.<\/p>\n\n\n\n<h2 id=\"faq\" class=\"wp-block-heading\">Frequently Asked Questions about Germanium<\/h2>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>What is the German name for Germanium?<\/summary>\n<p class=\"wp-block-paragraph\">Germanium is already the German name for the element. Its discoverer, Clemens Winkler, named it after the Latin word Germania for Germany. The chemical symbol is Ge.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Is germanium radioactive?<\/summary>\n<p class=\"wp-block-paragraph\">Natural germanium consists of five isotopes, and one of them, Germanium-76, decays via the extremely rare double beta decay. The measured half-life is around two sextillion years, or 2 times 10 to the power of 21 years, and Germanium-76 makes up only 7.75 percent of natural germanium.<\/p>\n<\/details>\n<\/div><\/div>\n\n<\/div>\n\n<div class=\"zggtheme-page-layout-area zggtheme-page-layout-right\">\n<div class=\"zggtheme-product-grid zggtheme-container woocommerce wp-block-zggtheme-blocks-product-grid\"><h2 class=\"zggtheme-product-grid-title\">Related products in the shop<\/h2><ul class=\"products zggtheme-card-holder zggtheme-product-card-holder\"><li class=\"zggtheme-interactive-card zggtheme-interactive-product-card product type-product post-32392 status-publish first instock product_cat-germanium-2 product_cat-profiles product_cat-pure-metals product_cat-round-rods has-post-thumbnail taxable shipping-taxable purchasable product-type-variable\">\n    <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt\/germanium-round-rods-5n-ge99-999\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">    <div class='zggtheme-product-thumbnail-image-frame'><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2021\/12\/Germanium-Stab-1-zugeschnitten-300x300.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Product image of a Germanium metal rod\" srcset=\"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2021\/12\/Germanium-Stab-1-zugeschnitten-300x300.webp 300w, https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2021\/12\/Germanium-Stab-1-zugeschnitten-100x100.webp 100w, https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2021\/12\/Germanium-Stab-1-zugeschnitten-150x150.jpeg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>    <\/div><h3 class=\"woocommerce-loop-product__title\">Germanium round Rods 5n Ge99.999<\/h3>\n\t<span class=\"price\"><span class=\"woocommerce-Price-amount amount\" aria-hidden=\"true\"><bdi>55,49&nbsp;<span class=\"woocommerce-Price-currencySymbol\" translate=\"no\" dir=\"auto\">&euro;<\/span><\/bdi><\/span> <span aria-hidden=\"true\">&ndash;<\/span> <span class=\"woocommerce-Price-amount amount\" aria-hidden=\"true\"><bdi>246,49&nbsp;<span class=\"woocommerce-Price-currencySymbol\" translate=\"no\" dir=\"auto\">&euro;<\/span><\/bdi><\/span><span class=\"screen-reader-text\">Price range: 55,49&nbsp;&euro; through 246,49&nbsp;&euro;<\/span> <small class=\"woocommerce-price-suffix\">inkl. MwSt.<\/small><\/span>\n<\/a><\/li>\n<li class=\"zggtheme-interactive-card zggtheme-interactive-product-card product type-product post-31874 status-publish instock product_cat-profiles product_cat-pure-metals product_cat-round-rods product_cat-silicon product_tag-6n product_tag-rod product_tag-rod-2 product_tag-si99-9999 product_tag-silicon has-post-thumbnail taxable shipping-taxable purchasable product-type-variable\">\n    <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt\/silicon-6n-round-rods\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">    <div class='zggtheme-product-thumbnail-image-frame'><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2023\/09\/Si-Stab-1-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Silicon 6N round rods, single smooth gray rod with a glossy surface, angled toward the end face\" srcset=\"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2023\/09\/Si-Stab-1-300x300.jpg 300w, https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2023\/09\/Si-Stab-1-150x150.jpg 150w, https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2023\/09\/Si-Stab-1-100x100.jpg 100w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>    <\/div><h3 class=\"woocommerce-loop-product__title\">Silicon 6n round Rods<\/h3>\n\t<span class=\"price\"><span class=\"woocommerce-Price-amount amount\" aria-hidden=\"true\"><bdi>56,49&nbsp;<span class=\"woocommerce-Price-currencySymbol\" translate=\"no\" dir=\"auto\">&euro;<\/span><\/bdi><\/span> <span aria-hidden=\"true\">&ndash;<\/span> <span class=\"woocommerce-Price-amount amount\" aria-hidden=\"true\"><bdi>78,99&nbsp;<span class=\"woocommerce-Price-currencySymbol\" translate=\"no\" dir=\"auto\">&euro;<\/span><\/bdi><\/span><span class=\"screen-reader-text\">Price range: 56,49&nbsp;&euro; through 78,99&nbsp;&euro;<\/span> <small class=\"woocommerce-price-suffix\">inkl. MwSt.<\/small><\/span>\n<\/a><\/li>\n<li class=\"zggtheme-interactive-card zggtheme-interactive-product-card product type-product post-30320 status-publish instock product_cat-gallium-2 product_cat-profiles product_cat-pure-metals product_cat-round-rods product_tag-4n product_tag-ga99 product_tag-gallium product_tag-rod product_tag-rod-2 has-post-thumbnail taxable shipping-taxable purchasable product-type-variable\">\n    <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt\/gallium-4n-round-rods\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">    <div class='zggtheme-product-thumbnail-image-frame'><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2025\/02\/Gallium-Staebe-8x100-mm-zugeschnitten-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Gallium 4N round bar in close-up, diagonally from the front, with a view of the cut surface\" srcset=\"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2025\/02\/Gallium-Staebe-8x100-mm-zugeschnitten-300x300.jpg 300w, https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2025\/02\/Gallium-Staebe-8x100-mm-zugeschnitten-280x280.jpg 280w, https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2025\/02\/Gallium-Staebe-8x100-mm-zugeschnitten-800x800.jpg 800w, https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2025\/02\/Gallium-Staebe-8x100-mm-zugeschnitten-100x100.jpg 100w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>    <\/div><h3 class=\"woocommerce-loop-product__title\">Gallium 4n round Rods<\/h3>\n\t<span class=\"price\"><span class=\"woocommerce-Price-amount amount\" aria-hidden=\"true\"><bdi>134,99&nbsp;<span class=\"woocommerce-Price-currencySymbol\" translate=\"no\" dir=\"auto\">&euro;<\/span><\/bdi><\/span> <span aria-hidden=\"true\">&ndash;<\/span> <span class=\"woocommerce-Price-amount amount\" aria-hidden=\"true\"><bdi>251,49&nbsp;<span class=\"woocommerce-Price-currencySymbol\" translate=\"no\" dir=\"auto\">&euro;<\/span><\/bdi><\/span><span class=\"screen-reader-text\">Price range: 134,99&nbsp;&euro; through 251,49&nbsp;&euro;<\/span> <small class=\"woocommerce-price-suffix\">inkl. MwSt.<\/small><\/span>\n<\/a><\/li>\n<li class=\"zggtheme-interactive-card zggtheme-interactive-product-card product type-product post-32027 status-publish instock product_cat-indium-2 product_cat-pure-metals product_tag-5n product_tag-in99999 product_tag-indium product_tag-rod product_tag-rod-2 has-post-thumbnail taxable shipping-taxable purchasable product-type-variable\">\n    <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt\/indium-rod\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">    <div class='zggtheme-product-thumbnail-image-frame'><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2023\/04\/In-Stab-1-jpg-300x300.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Indium Rod\" srcset=\"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2023\/04\/In-Stab-1-jpg-300x300.webp 300w, https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2023\/04\/In-Stab-1-jpg-100x100.webp 100w, https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2023\/04\/In-Stab-1-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>    <\/div><h3 class=\"woocommerce-loop-product__title\">Indium Rod<\/h3>\n\t<span class=\"price\"><span class=\"woocommerce-Price-amount amount\"><bdi>154,99&nbsp;<span class=\"woocommerce-Price-currencySymbol\" translate=\"no\" dir=\"auto\">&euro;<\/span><\/bdi><\/span> <small class=\"woocommerce-price-suffix\">inkl. MwSt.<\/small><\/span>\n<\/a><\/li>\n<\/ul><\/div>\n<\/div>\n<\/div>\n<script type=\"application\/ld+json\">{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Article\",\n  \"headline\": \"Germanium: Eigenschaften, Verwendung und Formen\",\n  \"description\": \"Germanium im \u00dcberblick: Halbmetall mit der Ordnungszahl 32, schmilzt bei 938,25 Grad Celsius, steckt in Glasfaser und Infrarotoptik.\",\n  \"datePublished\": \"2026-10-01\",\n  \"dateModified\": \"2026-10-23\",\n  \"author\": {\n    \"@type\": \"Organization\",\n    \"name\": \"Zinn-Gie\u00dferei-G\u00f6hler Redaktion\",\n    \"url\": \"https:\/\/zinn-giesserei-goehler.com\"\n  },\n  \"publisher\": {\n    \"@type\": \"Organization\",\n    \"name\": \"Zinn-Gie\u00dferei-G\u00f6hler\",\n    \"logo\": {\n      \"@type\": \"ImageObject\",\n      \"url\": \"https:\/\/zinn-giesserei-goehler.com\/wp-content\/uploads\/2024\/05\/cropped-cropped-Logo-komplett-Pfad-280x200.png\"\n    },\n    \"address\": {\n      \"@type\": \"PostalAddress\",\n      \"streetAddress\": \"H\u00f6ckendorfer Stra\u00dfe 18\",\n      \"postalCode\": \"01705\",\n      \"addressLocality\": \"Freital\",\n      \"addressCountry\": \"DE\"\n    },\n    \"vatID\": \"DE324621656\"\n  },\n  \"mainEntityOfPage\": {\n    \"@type\": \"WebPage\",\n    \"@id\": \"https:\/\/zinn-giesserei-goehler.com\/ratgeber\/germanium\/\"\n  }\n}\n<\/script><script type=\"application\/ld+json\">{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Wie hei\u00dft Germanium auf Deutsch?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Germanium ist bereits der deutsche Name des Elements. Sein Entdecker Clemens Winkler benannte es nach dem lateinischen Wort Germania f\u00fcr Deutschland. Das chemische Symbol lautet Ge.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Ist Germanium radioaktiv?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Nat\u00fcrliches Germanium besteht aus f\u00fcnf Isotopen, und eines davon, Germanium-76, zerf\u00e4llt \u00fcber den extrem seltenen doppelten Betazerfall. 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