Tourmaline can be found as an accessory mineral in a variety of rocks including leucogranite, pegmatite, quartz veins, and metamorphiccountry rocks in Hajiabad-Dehgah area in SE of Boroujerd city. Tourmaline in pegmatites is coarse-grained, subhedral to euhedral, anddisplays strong to moderate pleochroic blue rimmed by olive green. In contrast, tourmalines from leucogranite, quartz-veins, and h...

We develop a study protocol to efficiently and accurately identify the raw material categories constituting lithic assemblages at Umhlatuzana rockshelter, South Africa. combine visual analytical methods establish database provide more accurate insight into selection during Pleistocene Middle Later Stone Age occupational sequence of Umhlatuzana. The combines petrological properties (as studied o...

The new mineral plumbophyllite, Pb2Si4O10·H2O, is orthorhombic with space group Pbcn and cell parameters a = 13.2083(4), b = 9.7832(3), c = 8.6545(2) Å, V = 1118.33(5) Å3, and Z = 4. It occurs as colorless to pale blue prismatic crystals to 3 mm, with wedge-shaped terminations at the Blue Bell claims, about 11 km west of Baker, San Bernardino County, California. It is found in narrow veins in a...

This paper describes a newly discovered Bi-Cu±Au mineralization co-occurring with Pb-Zn-Ag hydrothermal within the Kizhnica-Hajvalia-Badovc ore field, central Kosovo, Vardar Zone. The mineralogy of two styles was described using EPMA in combination reflected and transmitted light microscopy. Hydrothermal Cu-Bi veinlets Kizhnica andesite quarry consist Bi sulfosalts (bismuthinite, cosalite, aiki...