Topaz

Description

托帕石晶束长在酥松的基岩上，最大的一根晶体颜色较淡，尖锐，竖直向上。周围的晶体颜色渐深，晶头渐平，有一根几乎长成了5棱柱状。托帕石的红色是内涵丝状金红石所致。基岩上还散布着黑色的方铁锰矿。 ------ A Topaz crystal cluster is situated on a friable matrix. The largest crystal is paler in color, sharply terminated, and vertically oriented. The surrounding crystals gradually deepen in color, and their terminations become progressively flatter. One crystal has almost formed into a pentagonal prism shape. The red coloration in the Topaz is caused by inclusions of fibrous Rutile. Black Bixbyite is also scattered across the matrix.