Crossword puzzle clue "mineral that's often black"

Here are the possible solutions for mineral that's often black clue

Answer
Clue
Relevancy
onyx
Clue
Mineral that's often black
Definition
a form of chalcedony consisting of plane layers of different colours
modelt
Clue
Old car that was famously available in black, black ... or black
emery
Clue
Hard black-grey mineral used in grinding and polishing
Definition
to coat with emery (a polishing powder)
hornblende
Clue
Green to black mineral
Definition
the common black, or dark green or brown, variety of amphibole
tantalite
Clue
Heavy iron-black mineral.
tinstone
Clue
Black mineral
mica
Clue
Often-transparent mineral
Definition
a rock-forming mineral (muscovite, biotite, lepidolite, etc.) with perfect basal cleavage
ore
Clue
"-ite" mineral, often
Definition
rock containing a valuable metal, also OWRE

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