As nouns the difference between feldspar and quartz
is that feldspar is any of a large group of rock-forming minerals that, together, make up about 60% of the earth's outer crust. The feldspars are all aluminum silicates of the alkali metals sodium, potassium, calcium and barium. Feldspars are the principal constituents of igneous and plutonic rocks while quartz is the most abundant mineral on the earth's surface, of chemical composition silicon dioxide, SiO2. It occurs in a variety of forms, both crystalline and amorphous. Found in every environment.
feldspar
English
Alternative forms
* felspar
Noun
(
en noun)
(mineral) Any of a large group of rock-forming minerals that, together, make up about 60% of the earth's outer crust. The feldspars are all aluminum silicates of the alkali metals sodium, potassium, calcium and barium. Feldspars are the principal constituents of igneous and plutonic rocks.
Related terms
* feldspathic
* feldspathoid
Derived terms
* feldsparlike
See also
* albite
* bytownite
* andesine
* anorthite
* granite
* labradorite
* microcline
* mineral
* oligoclase
* orthoclase
* rock
quartz
Noun
(mineralogy) The most abundant mineral on the earth's surface, of chemical composition silicon dioxide, Si]][[oxygen, O2. It occurs in a variety of forms, both crystalline and amorphous. Found in every environment.
Derived terms
()
* Colorado topaz
* drusy quartz
* fused quartz
* rose quartz
* quartz clock
* quartz crystal
* quartz glass
* quartz heater
* quartz-iodine lamp
* quartz lamp
* quartz halogen lamp
* quartz watch
* quartziferous
* quartzing
* quartzite
* quartzose
* smoky quartz
See also
* amethyst
* aventurine
* buhrstone
* cairngorm
* chalcedony
* chrysoprase
* citrine
* coesite
* flint
* greisen
* phenacite
* prase
* rock crystal
* rubasse
* stishovite
* topaz
