Mylonitic rocks usually have ribbon quartz and rotated albite porphyroclasts. |
Other minerals found here are the red ochre, soap stone, white quartz and molding sand. |
Some topaz forms spectacular crystals and matrix specimens on magnesite or quartz. |
Late chlorite and carbonates overgrew the schistosity defined by phengite, chlorite and quartz. |
Around the tourmalines were a dozen more wall plates, including a fine quartz cluster weighing nearly 100 kilograms. |
My necklaces are made mainly of semiprecious stones, such as agate, quartz, amber, rock crystal and jade. |