Opaque Minerals sorted by Mineral Name

794 Opaque Minerals Sorted by Mineral Name

Color
Refractive Index
Hardness
Density
Cleavage
Other Properties

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(* - Mineral Name is Not IMA Approved)
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(? - IMA Discredited Mineral Species Name)
(# - Grandfathered as valid)

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Mouseover Mineral Name: IMA Status
Mineral Name	Reflected Light Color	Bireflectance	Anisotropism	Pleochroism	Diaphaneity	Reflectivity Record Count
Lorandite #			strong		Subtransparent	32
Loveringite	white to grayish white				Opaque	30
Luanheite	milky white		very weak	pinkish gray to milky white	Opaque	4
Lucasite-(Ce)	gray with brown internal reflections		weak		Translucent	8
Ludwigite #		pinkish gray to dark greenish gray	strong, yellowish brown to bluish violet gray		Opaque to subtranslucent	32
Luzonite #	pale brownish pink		strong, in greenish yellow and purplish	weak	Opaque	32
Lyonsite	creamy white		weak		Opaque	8
Macedonite	grayish white with yellow brown to dark brownish green interanal reflections		very weak		Opaque	20
Mackinawite			extreme	strong	Opaque	32
Madocite			strong	strong, from white to gray	Opaque
Maghemite #	white to bluish gray				Opaque	32
Magnesiocoulsonite	light gray				Opaque	32
Magnesioferrite #	gray with red internal reflections				Opaque	8
Magnesiohogbomite-2N2S			distinct		Subtranslucent to opaque	32
Magnesiohogbomite-2N3S			distinct		Subtranslucent to opaque	32
Magnesiohogbomite-6N6S #			distinct		Subtranslucent to opaque	32
Magnetite #	gray with brownish tint				Opaque	32
Magnetoplumbite #	gray		distinct	weak	Opaque	32
Maikainite !	bright yellow to grayish white with no internal reflections	none	none	none	Opaque	8
Majakite	grayish white		weak		Opaque	28
Makinenite	orange yellow in air, pure yellow in oil		strong, in oil pale green to pale orange-yellow, in air glowing cinder-red to blue-green or green	strong, yellow to greenish yellow	Opaque	32
Makovickyite	light gray	not noticable	pronounced in gray tones		Opaque	40
Malanite	bright white with a faint brown tint				Opaque
Maldonite #	silver white with a pint tinge.				Opaque	32
Manganilvaite !	gray to bluish gray with red internal reflections		strong in blue-grayish	bluish gray to lilac brown	Opaque	8
Manganite #	gray white with brownish tint with blood red internal reflections	distinct, in grays	weak		Opaque	32
Manganochromite	gbrownish gray				Opaque	8
Manganoshadlunite	grayish yellow, darker than cubanite		weak	weak	Opaque	28
Manganosite #	gray with emerald-green internal reflections				Transparent to translucent to opaque	32
Mannardite	pale reddish brown	distinct, light to dark brown	strong, light pinkish gray to dark brownish gray		Opaque	32
Maoniupingite-(Ce) !	gray with yellowish gray internal reflections	weak	strong	weak	Opaque	8
Marcasite #			very strong, yellow through light green to dark green	creamy white [100], light yellowish white [010], white with rose-brown tint [001]	Opaque	32
Marokite	light gray to brown, with carmine-red internal reflections	yellowish gray to gray-brown	strong, yellowish green to greenish yellow		Opaque	32
Marrite #	white, with red internal reflections		distinct, strong in oil		Opaque
Maslovite	light gray with a lilac hue				Opaque	28
Mathiasite	tan		moderate, brownish tan to dark brown		Opaque	32
Matildite #	white		weak	weak	Opaque	32
Mattagamite	violet		weak, pinkish violet to grayish violet	weak, colors from pink to cream	Opaque	32
Maucherite #	pinkish gray		weak		Opaque	32
Mawsonite	brownish orange		very strong, from bright straw-yellow to bright royal blue to dark blue	strong, orange to brown with slight orange tint	Opaque	32
Mayingite	bright white with yellowish tint	none	some grains show a bluish or yellowish tint	none	Opaque	8
Mazzettiite !	light gray with no internal reflections	weakly to moderately	moderate	weakly from slightly greenish gray to darker greenish gray	Opaque	40
Mckinstryite	light grayish white		strong, in gray, pale grayish blue and light tan		Opaque	32
Melliniite !	cream yellowish with no internal reflections	none	none	none	Opaque	8
Melonite #	white to faint pink		very weak, cream-white to slightly more pinkish	moderate to strong	Opaque	32
Meneghinite #	white		weak	strong	Opaque	32
Menshikovite !	pink with slight grayish tint	none	weak mosaic-like, light gray to brownish gray		Opaque	16
Merenskyite	white		distinct to strong, from dark brown to light greenish gray	weak, white to grayish white in air, more distinct in oil, from white to slightly creamy	Opaque	32
Mertieite-I	brassy yellow		distinct		Opaque
Mertieite-II	brassy yellow		distinct, dark blue-gray to dark brown		Opaque	30
Metacinnabar #	grayish white		very weak, occasionally	weak, occasionally	Opaque
Metastibnite #	bluish white with intense red internal reflections in oil		moderate in air		Translucent to Subopaque
Mgriite	gray with brownish tint				Opaque	16
Miargyrite #	white with raspberry-red internal reflections in oil, seldom seen in air		strong	distinct, in whites, light gray-whites, and whitish grays	Translucent to Subopaque	64
Miassite !	light gray with no internal reflections				Opaque	10
Michenerite #	cream-white with a tinge of gray				Opaque	32
Miessiite !	light gray in air, pinkish gray in oil	none	none	none	Opaque	80
Miharaite	pale gray to grayish white		moderate, from grayish blue to pinkish brown		Opaque	8
Millerite #			strong	weak in air, stronger in oil, pale yellow-brown to bright yellow	Opaque	32
Milotaite !	white with no internal reflections	none	none	none	Opaque	40
Moeloite !	white with rare red internal reflections in oil	weak	moderate	none	Opaque	16
Mohite	gray with greenish tint		distinct, but without color effects.		Opaque	28
Molybdenite #	gray, very pale yellow to deep reddish brown in transmitted light		very strong	very strong	Opaque	32
Moncheite	white		strong, except in basal sections	weak in air, distinct in oil	Opaque	32
Montbrayite #			weak to moderate, light gray, yellow-brown, and blue-gray	very weak	Opaque
Mooihoekite	light yellow, tarnishes to pinkish brown and purple				Opaque	32
Morozeviczite	white with cream-red tint		distinct		Opaque	8
Mozgovaite !	white	weak	strong, without color effects	none	Opaque	16
Muckeite			moderate		Opaque	2
Murataite	gray with faint orange internal reflections	slight	weak		Translucent to Opaque	6
Murdochite #	gray with yellowish brown tint				Opaque	16
Murunskite	grayish orange cream		moderate, gray to brownish gray white a bluish tint		Opaque	28
Museumite !	gray	very low	distinct	very low	Opaque	8
Muthmannite #	grayish white with no internal reflections	very low	distinct	very low	Opaque	8
Mutnovskite !	silvery lead gray with strong orange internal reflections		not visible because of orange internal reflections	not visible because of orange internal reflections	Translucent to subtranslucent	40
Nagyagite #	gray-white		weak but distinct	weak in air and oil	Opaque	32
Naldretteite !	bright creamy white	weak	distinct in shades of deep bright blue, lemon-buff, and mauve to pale pink	none	Opaque	16
Natrotantite			strong		Transparent	6
Naumannite #			distinct but weak, light gray to dark gray		Opaque	32
Nevskite	white with creamy tinge		isotropic in basal sections, distinctly anisotropic in perpendicular sections, weak brown to gray		Opaque
Neyite	galena white		moderate, light gray, yellow-green, and light reddish brown to gray-black		Opaque
Nezilovite !		noted	noted		Opaque	16
Nickel	white, more bluish than heazlewoodite				Opaque
Nickeline #	white with strong yellowish pink hue		very strong, light greenish yellow to slate-gray in air	high, whitish, yellow-pink, to light brownish pink	Opaque	32
Nickelphosphide !	white witha pink-yellow tint	none	none in air, weak in oil, yellowish-pinkish		Opaque	8
Nickelskutterudite #	yellowish white, somewhat reddish in anisotropic zones			weak to distinct in some zones	Opaque
Nielsenite !	bright creamy white with no internal reflections	none	none		Opaque	64
Niggliite #	Silver white with a pinkish to bluish tint		very high, bright pinkish cream to very dark blue or black	strong, from pinkish cream to pale cobalt blue	Opaque	32
Niningerite	gray				Opaque
Niobocarbide !	yellowish to rose cream				Opaque	8
Nisbite	white		weak	weak	Opaque
Nolanite #	dark gray to dark grayish violet		moderate, light to dark gray		Opaque	6
Nordstromite	white with a gray tint		dark gray to brown		Opaque
Novakite	white with a light cream tint		medium, dark blue-gray and light brown-ocher		Opaque	32
Nsutite	white with a slightly creamy tint	grayish white with a creamy tint to bluish gray-wh	distinct, light to dark gray		Opaque
Nuffieldite	pale creamy white		very weak, from bluish gray to grayish red		Opaque
Nukundamite			very strong, in pale green-gray colors	strong, from reddish orange to pale gray	Opaque	32
Olkhonskite	light gray	noticeable	weak	weak in brownish tints	Opaque	28
Omeiite	white with a yellow tint in air, milky yellow in oil		distinct	weak, yellow to grayish yellow.	Opaque
Oosterboschite	white-yellow with a cream tint		medium strong, in bluish gray to brownish gray		Opaque	32