Baryte | #Geology #GeologyPage #Mineral Locality: Sa corona 'e sa craba Barbusi Carbonia Carbonia-Iglesias prov. Sardinia Italy Specimen weight:100 gr. Crystal size:mm. 28 Overall size: 60mm x 30 mm x 37 mm Photo Copyright Minservice Geology Page www.geologypage.com
Quartz crystals with blue needles of Dumortierite inside. The locality, is western Bahia, near Vaca Morta Quarry, a remote and hard to reach area near the border with Tocantins state. - Photo: Jeff ScovilQuartz with Dumortierite inclusions
Topaz ( Aluminum silicate fluoride hydroxide) is a common gemstone that has been used for centuries in jewelry. Its golden brown to yellow color is classic but is confused with the less valuable citrine, which is sometimes sold under the name topaz.