Reviews
This Specimen has been sold.
HERE ARE SOME OTHER SIMILAR FOSSILS FOR SALE
14.8" Pineapple Quartz Crystal Cluster - Madagascar
This is a beautiful, large cluster of "pineapple" quartz crystals, from Madagascar. The widest crystal is 2.2" and the faces of the crystals are for the most part covered in a hazy purple mineralization. The entire cluster measures 14.8" long by 11.3" wide, weighs 34 lbs and is accompanied by a small rebar display stand.
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
LOCATION
Fianarantsoa, Madagascar
SIZE
14.8" long, 11.3" wide, widest crystal 2.2"
CATEGORY
ITEM
#69746
