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5.9" Polished Quartz Crystal Point with Chlorite - Madagascar
This is a 5.9" tall specimen of quartz from Madagascar. The polished portion of this specimen is quartz formed after a previous chlorite coated quartz point. This can be indicated by the phantom containing faces and a termination within the polished quartz point. On one face of the phantom, there is an inclusion of chlorite, which can also be considered a coating when taking into account the crystal within. The base has been cut flat to allow for aesthetic presentation on any flat surface.
About Quartz
Quartz is the name given to silicon dioxide (SiO2) and is the second most abundant mineral in the Earth's crust. Quartz crystals generally grow in silica-rich environments--usually igneous rocks or hydrothermal environments like geothermal waters--at temperatures between 100°C and 450°C, and usually under very high pressure. In either case, crystals will precipitate as temperatures cool, just as ice gradually forms when water freezes. Quartz veins are formed when open fissures are filled with hot water during the closing stages of mountain formation: these veins can be hundreds of millions of years old.
Quartz is the name given to silicon dioxide (SiO2) and is the second most abundant mineral in the Earth's crust. Quartz crystals generally grow in silica-rich environments--usually igneous rocks or hydrothermal environments like geothermal waters--at temperatures between 100°C and 450°C, and usually under very high pressure. In either case, crystals will precipitate as temperatures cool, just as ice gradually forms when water freezes. Quartz veins are formed when open fissures are filled with hot water during the closing stages of mountain formation: these veins can be hundreds of millions of years old.
SPECIES
Quartz & Chlorite
LOCATION
Madagascar
SIZE
5.9" tall, 3.1" wide
CATEGORY
SUB CATEGORY
ITEM
#56143
