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Is onyx a gemstone or a mineral?
Mineral!
What is the name of a black mineral?
The Mineral you mention is I think called Samarskite
What is the cleavage of onyx?
Onyx like agates is a crypto-crystalline mineral and so it doesn't have any cleavages developed.
What is the mineral group of onyx?
Silicate. It's a form of quartz.
What is the definition of onyx?
Onyx is a cryptocrystalline form of quartz. (Many items called "onyx" are actually made from a softer mineral, such as banded calcite found in Mexico, Pakistan, and other places)
Who discovered the mineral moissanite?
The mineral moissanite was discovered in Canyon Diablo in 1983 by Henri Moissan. Moissan discovered the mineral while examining rock samples from a meteor crater.
In 1998 a new mineral was found in PA Where was it found and what mineral was discovered?
Eastonite is a new mineral discovered in 1998 at a quarry near Easton, Northampton County, Pennsylvania.
What mineral is used to make sinks and tubs?
Onyx and quartz are minerals that are used to make sinks and tubs.
Who discovered the mineral fuchsite?
"Fuchsite" is not a mineral, it is a varietal name given to green chromian muscovite.
What igneous rock are produce in the deepest soil?
Any mineral that you can think of that is under ground! The ones i know right now are onyx, and other stuff!
What level does onex evolve?
Onyx doesn't evolve by level you trade it holding a steal coat!!!!! ONYX ONYX ONYX
What was the important mineral discovered in the south island in the 1860s?
gold
