Word made up by mineralogist Abraham Gottlob Werner in 1813 and dedicated to Hendrik Von Prehn, commander of the military forces of the Dutch colony....
Italian workers prepare to remove the obelisk of Axum, a 24 meter high silicate stone in Rome's central square Piazza di Porta Capena, 07 November...
ametrine, peridot, chrysolite, moonstone, guarz, chalcedony, spessartine, rhodochrosite, jadeite, obsidian, jasper, nephrite, jade, cinnabar, cuprite, sodalite, aventurine, beryl, prehnite gemstones - 矽酸鹽礦物 個照片及圖片檔
set of beryl, rhodochrosite, sodalite, lazurite, dumortierite, bloodstone, amethyst, moss agate, malachite, rock crystal, citrine, jadeite, tiger eye, amazonite and howlite gemstones, against a white background background - 矽酸鹽礦物 個照片及圖片檔
prehnite, aragonite, spessartine, aventurine, cinnabar, nephrite, chrysolite, jasper, moonstone, rhodochrosite, cuprite, sodalite, chalcedony, agate, obsidian, quartz, carnelian, ametrine - 矽酸鹽礦物 個照片及圖片檔
collection specimen of rare ortite (allanite) mineral. ortite is an ore of rare earth elements, especially thorium. radioactive - 矽酸鹽礦物 個照片及圖片檔
gemology, sphene, also known as titanite is a calcium titanium silicate mineral frequently found associated with feldspar in igneous and metamorphic rock, vintage illustration - 矽酸鹽礦物 幅插畫檔、美工圖案、卡通及圖標
gemology, opal is a captivating, hydrated amorphous form of silica and the traditional birthstone for october, vintage illustration - 矽酸鹽礦物 幅插畫檔、美工圖案、卡通及圖標
Package of Septodont Biodentine bioactive dentine substitute is on display during the International Dental Trade Fair Krakdent in Krakow, Poland, on...
