Green feldspar is a mineral group within the feldspar family that can exhibit a variety of shades of green due to trace elements like chromium or vanadium. The most common green feldspar is amazonite, which typically ranges from a pale green to a bluish-green color. Amazonite is primarily found in granite pegmatites in locations such as Colorado, USA; Brazil; and Russia. The coordinates of these specific locations can vary, but they are generally found within the Earth's crust where granitic rocks are present.
Sandstone will often contain feldspar, but some sandstones are composed entirely of quartz.
Feldspar is primarily an igneous rock-forming mineral, commonly found in intrusive and extrusive igneous rocks such as granite and basalt. However, feldspar can also be present in some metamorphic rocks as a result of the recrystallization of pre-existing feldspar minerals during metamorphic processes.
Feldspar is a common mineral that can appear in various colors such as white, pink, grey, or green. It typically forms as rectangular prismatic crystals or as granular masses. In its most common form, feldspar typically has a glassy or pearly luster and is often found in igneous and metamorphic rocks.
A steel nail can scratch feldspar but not quartz. Feldspar has a hardness of 6 on the Mohs scale, while quartz has a hardness of 7.
Granite contains plagioclase feldspar and potassium feldspar. It really depends on the composition of the magma from which it forms. If the granite has a lot of pink in it, chances are it is potassium feldspar (K-Spar). If it is dominated by white, then the feldspar is probably plag.
No, it is not a rock, it is a mineral/crystal.Amazonite is a green variety of microcline feldspar, which does occur in some intrusive, granitic Igneous rocks.
The exact coordinates for NCS Green would depend on the specific location being referred to. If you have the address or name of a specific place or landmark within NCS Green, I can help you determine the coordinates.
73, 121, 107.
169, 186, 157.
144, 238, 144.
0, 255, 147.
An amazonite is a gem variety of microcline feldspar, varying from bright verdigris to bluish-green.
0, 100, 0.
34, 139, 34.
41, 171, 135.
152, 251, 152.
1, 121, 111.