Small Natural Madagascan Quartz Cluster - 60mm, 48g
Locality - Madagascar Size – 60 x 49 x 42mm Weight – 48g
This natural quartz cluster features nice composition with a particularly large, clear acicular crystal sharply protruding from its matrix surrounded by smaller crystals at its base. There is a small cluster of double terminated crystals in the matrix and a large, fractured and self-healed quartz stem base. This small cluster is in good condition with nice clarity, lustrous crystals and has a very characteristic and aesthetic display.
Quartz is the most common mineral found on the surface of the Earth, occurring in virtually every locality. Pure crystals are colourless, transparent and hard, though many are coloured by natural processes such as irradiation or by the presence of certain elements within them. These coloured varieties include the popular gemstones amethyst, purple quartz, and citrine, yellow quartz. Some quartz crystals have unique inclusions of minerals that have grown within them, such as golden rutile, tourmaline or chlorite, and others may show silvery reflective internal veils and bright rainbows. Whilst the majority of quartz is created from molten magma that has cooled and crystallized, much quartz also chemically precipitates from hot hydrothermal veins. Well-formed crystals deep within the Earth can reach colossal sizes, with some measuring several meters in length and weighing hundreds of kilograms. The largest documented single crystal of quartz was found near Itapore, Brazil, measuring 6.1 metres at its widest point and weighing in over 44,000 kilograms!