aggregate
black
bulb
calcium
cluster
crystal
crystalline
ferberite
filament
gaslight
gem
gemstone
geological
geology
gray
hydrothermal
incandescent
iron
light
lightbulb
luster
manganese
manufacturing
matrix
metal
metallic
mine
mineral
mineralogy
minerology
natural
ore
pegmatite
precious
rock
sample
scheelite
science
semiprecious
silicate
south
specimen
stone
treasure
tungstate
tungsten
tunstate
twin
wolfram
wolframite
定額
Ferberite rock specimen from mining and quarrying industries. Ferberite is the iron endmember of the manganese - iron wolframite solid solution series, and composed of iron, tungstate, FeWO4.の素材 [FY31085839277]
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