a brown mineral
Crossword Clue

  • We have found 40 answers to crossword clue "a brown mineral"
  • The Best Answer: 10/10
AnswerCrossword Clue
axinitea brown mineral
axinitesAXINITE, a brown mineral
basaltinea black or brown-green mineral
perovskitesA yellow, brown, or black mineral consisting largely of calcium titanate
perovskiteA yellow, brown, or black mineral consisting largely of calcium titanate
pitchblendeA form of the mineral uraninite occurring in brown or black pitchlike masses
diallagoidof or like diallage, a mineral, a brown, green or grey form of augite
sphaleriteA shiny mineral, yellow to dark brown or black in color, consisting of zinc sulfide
phlogopiteA brown micaceous mineral that occurs chiefly in metamorphosed limestone and magnesium-rich igneous rocks
rhodochrositeA mineral consisting of manganese carbonate, typically occurring as pink, brown, or gray rhombohedral crystals
gadoliniteA rare dark brown or black mineral, consisting of a silicate of iron, beryllium, and rare earths
monazitereddish- or yellowish-brown mineral, a phosphate of cerium and lanthanum, (Ce,La)PO4: the principal ore of thorium
sideritecommon mineral, iron carbonate, FeCO3, usually occurring in yellowish to deep-brown cleavable masses: a minor ore of iron
mimetitemineral, lead chloroarsenate, Pb5As3O12Cl, occurring in yellow to brown prismatic crystals or globular masses: a minor ore of lead
wolframiteA black or brown mineral that is the chief ore of tungsten. It consists of a tungstate of iron and manganese
andalusiteA gray, green, brown, or pink aluminosilicate mineral occurring mainly in metamorphic rocks as elongated rhombic prisms, sometimes of gem quality
idocrasemineral, chiefly a hydrous silicate of calcium and aluminum, commonly in tetragonal crystals and usually of a brown to green color; idocrase
staurolitemineral, basic iron aluminum silicate, Fe2Al2O7(SiO4)4(OH), occurring in brown to black prismatic crystals, which are often twinned in the form of a cross
andraditeA mineral of the garnet group, containing calcium and iron. It occurs as yellow, green, brown, or black crystals, sometimes of gem quality
stilbitewhite-to-brown or red zeolite mineral, a hydrous silicate of calcium and aluminum, occurring in sheaflike aggregates of crystals and in radiated masses
rutilea reddish-brown to black mineral that consists of titanium dioxide usually with a little iron and has a brilliant metallic or adamantine luster
rutilecommon mineral, titanium dioxide, TiO2, usually reddish-brown in color with a brilliant metallic or adamantine luster, occurring in crystals: used to coat welding rods
pyromorphiteA mineral consisting of a chloride and phosphate of lead, typically occurring as green, yellow, or brown crystals in the oxidized zones of lead deposits
rutilescommon mineral, titanium dioxide, TiO2, usually reddish-brown in color with a brilliant metallic or adamantine luster, occurring in crystals: used to coat welding rods
monazitesa yellow to red or brown mineral that is a phosphate of thorium and various rare earth elements and occurs especially in sand and gravel deposits
vermiculiteA yellow or brown mineral found as an alteration product of mica and other minerals, and used for insulation or as a moisture-retentive medium for growing plants
hornblendesA dark brown, black, or green mineral of the amphibole group consisting of a hydroxyl alumino-silicate of calcium, magnesium, and iron, occurring in many igneous and metamorphic rocks
RUTILEReddish-brown mineral.
triplitedark-brown, massive mineral, fluorophosphate of iron and manganese
triplitesdark-brown, massive mineral, fluorophosphate of iron and manganese
axinitemineral, complex calcium and aluminum borosilicate, usually occurring in thin brown crystals
brookitebrown, red, or black mineral, titanium dioxide, TiO2, trimorphous with rutile and anatase
cupritesmineral, cuprous oxide, Cu2O, occurring in red crystals and brown to black granular masses: an ore of copper
cupritemineral, cuprous oxide, Cu2O, occurring in red crystals and brown to black granular masses: an ore of copper
tinstonebrown or black mineral, tin dioxide, SnO2, that crystallizes in the tetragonal system; tinstone: the principal ore of tin
curitesradioactive uranium mineral, Pb2U5O17·4H2O, with adamantine luster, occurring as reddish-brown to deep-yellow needle-shaped crystals, formed by alteration of uraninite
goethitevery common mineral, iron hydroxide, HFeO2, occurring in crystals, but more commonly in yellow or brown earthy masses: an ore of iron
curiteradioactive uranium mineral, Pb2U5O17·4H2O, with adamantine luster, occurring as reddish-brown to deep-yellow needle-shaped crystals, formed by alteration of uraninite
biotitesvery common mineral of the mica group, occurring in black, dark-brown, or dark-green sheets and flakes: an important constituent of igneous and metamorphic rocks
biotitevery common mineral of the mica group, occurring in black, dark-brown, or dark-green sheets and flakes: an important constituent of igneous and metamorphic rocks