wolframite
/ˈwʊlfrəmʌɪt
/noun [mass noun]
A black or brown mineral which is the chief ore of tungsten. It consists of a tungstate of iron and manganese.It occurs most commonly in the minerals scheelite (calcium tungstate) and wolframite (iron manganese tungstate WO 4)....
- Minerals such as wolframite, arsenopyrite, fluorite, and quartz are well known from this mine.
- A greisen is a quartz - mica aggregate containing significant amounts of cassiterite, wolframite, fluorite, topaz, rutile, and tourmaline.
- within striking distance
- with intent
- with interest
- within the hour
- within —— distance
- with it
- with might and main
- with one accord
- with one eye on
- with one hand (tied) behind one's back
- with one's back to (or up against) the wall
- with one's bare hands
- with one's compliments
- with one's eyes open
- with one's eyes shut (or closed)
- with one's hand in the cookie jar
- with one's head in the clouds
- with one's heart in one's boots
- with one's nose in the air
- with one's tail between one's legs
- with one's tail up
- with one voice
- with open arms
- with open eyes
- with (or in or having) regard to