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ONXY |
Black mineral |
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COLORADOITE |
Mercury telluride, an iron-black metallic mineral,
found in Colorado. |
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HAUERITE |
Native sulphide of manganese a reddish brown or brownish
black mineral. |
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COCKLE |
The mineral black tourmaline or schorl; -- so called by the
Cornish miners. |
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PITCHBLENDE |
A pitch-black mineral consisting chiefly of the oxide
of uranium; uraninite. See Uraninite. |
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CHROMITE |
A black submetallic mineral consisting of oxide of
chromium and iron; -- called also chromic iron. |
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FAYALITE |
A black, greenish, or brownish mineral of the chrysolite
group. It is a silicate of iron. |
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MIARGYRITE |
A mineral of an iron-black color, and very sectile,
consisting principally of sulphur, antimony, and silver. |
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HUBNER |
A mineral of brownish black color, occurring in columnar or
foliated masses. It is native manganese tungstate. |
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TANTALITE |
A heavy mineral of an iron-black color and submetallic
luster. It is essentially a tantalate of iron. |
|
STANNITE |
A mineral of a steel-gray or iron-black color; tin
pyrites. It is a sulphide of tin, copper, and iron. |
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CHALCOCITE |
Native copper sulphide, called also copper glance, and
vitreous copper; a mineral of a black color and metallic luster. |
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THORITE |
A mineral of a brown to black color, or, as in the variety
orangite, orange-yellow. It is essentially a silicate of thorium. |
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ENARGITE |
An iron-black mineral of metallic luster, occurring in
small orthorhombic crystals, also massive. It contains sulphur,
arsenic, copper, and often silver. |
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GADOLINITE |
A mineral of a nearly black color and vitreous luster,
and consisting principally of the silicates of yttrium, cerium, and
iron. |
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FERGUSONITE |
A mineral of a brownish black color, essentially a
tantalo-niobate of yttrium, erbium, and cerium; -- so called after
Robert Ferguson. |
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EUXENITE |
A brownish black mineral with a metallic luster, found in
Norway. It contains niobium, titanium, yttrium, and uranium, with some
other metals. |
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KEILHAU-ITE |
A mineral of a brownish black color, related to
titanite in form. It consists chiefly of silica, titanium dioxide,
lime, and yttria. |
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SAMARSKITE |
A rare mineral having a velvet-black color and
submetallic luster. It is a niobate of uranium, iron, and the yttrium
and cerium metals. |
|
URANINITE |
A mineral consisting chiefly of uranium oxide with some
lead, thorium, etc., occurring in black octahedrons, also in masses
with a pitchlike luster; pitchblende. |
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STILPNOMELANE |
A black or greenish black mineral occurring in
foliated flates, also in velvety bronze-colored incrustations. It is a
hydrous silicate of iron and alumina. |
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SPHENE |
A mineral found usually in thin, wedge-shaped crystals of a
yellow or green to black color. It is a silicate of titanium and
calcium; titanite. |
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HYPERSTHENE |
An orthorhombic mineral of the pyroxene group, of a
grayish or greenish black color, often with a peculiar bronzelike
luster (schiller) on the cleavage surface. |
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BABINGTONITE |
A mineral occurring in triclinic crystals approaching
pyroxene in angle, and of a greenish black color. It is a silicate of
iron, manganese, and lime. |
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WARWICKITE |
A dark brown or black mineral, occurring in prismatic
crystals imbedded in limestone near Warwick, New York. It consists of
the borate and titanate of magnesia and iron. |