7.9" Quartz Crystal Cluster - Madagascar

This is a nice cluster of clear quartz crystals from Madagascar. The longest crystal is 3.1", with nice defined tips on all of the large crystals. This specimen sits nicely on a flat surface, however it's accompanied by an acrylic display stand for preferred presentation.

The matrix has been stabilized.

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.

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DETAILS
SPECIES
Quartz
LOCATION
Madagascar
SIZE
7.9"x4.5", Longest crystal 3.1"
CATEGORY
ITEM
#69529