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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Mouseover Mineral Name: IMA Status
Mineral Name	Reflected Light Color	Bireflectance	Anisotropism	Pleochroism	Diaphaneity	Reflectivity Record Count
Chalcopyrite #			weak		Opaque	32
Chalcostibite #			observed	feeble in air, somewhat stronger in oil	Opaque	32
Chalcothallite	creamy white to light gray with a brownish creamy tint		distinct in orange to red-brown	noticeable in air	Opaque	32
Chameanite	dark gray				Opaque	32
Changchengite !	bright white with a yellowish tint				Opaque	8
Chatkalite	pale rose		weak in shades of brown		Opaque	28
Chekhovichite	pale gray to gray with white internal reflections	observable	marked		Subtransparent	32
Chenguodaite !	light gray with no internal reflections	none	none		Opaque	40
Cherepanovite	white with orange tint		green to gray-brown	weak, in yellow to pinkish hue and bluish white	Opaque	30
Chiluite	gray with gray-brown internal reflections		weak		Semitransparent	30
Chlorbartonite !	yellowish brown		none		Opaque	32
Chrisstanleyite !	very light buff to slightly gray-green	weak	moderate	slight	Opaque	16
Chromite #	gray-white with a brownish tint and brownish red internal reflections			none	Opaque	32
Chromium	white with a yellow tint				Opaque	8
Chursinite	gray with a bluish tint, tarnishes to bluish to bluish white file		dark brown to blue-gray		Transparent to Subopaque	8
Chvilevaite	orange, changing to rosy purple with time		strong, from black to white	distinct, from light orange to dark gray with a lilac tint	Opaque	30
Cianciulliite	gray	very weak	very weak		Subtranslucent to Opaque	32
Cinnabar #			high		Transparent to translucent to opaque	32
Clausthalite #	galena-white with a grayish tinge				Opaque	32
Clerite !	light gray	distinct	strong	none	Opaque	8
Cleusonite !	light gray				Opaque	8
Cobaltite #				very weak	Opaque	32
Cobaltpentlandite	slightly lighter bronze yellow than pentlandite				Opaque	32
Cohenite #	tin-white				Opaque	32
Coloradoite #	white with slight grayish brown tint, tarnishing to dull purple		moderate, dark brownish red to blue-gray		Opaque	32
Columbite-(Fe) #	grayish white with a brownish tint and reddish internal reflections				Translucent to opaque	32
Columbite-(Mn) #	grayish white with a brownish tint and reddish brown internal reflections				Opaque
Colusite #	cream				Opaque	32
Cooperite #	brownish steel gray		strong, greenish gray to whitish yellow to bluish white	from white to creamy white to bluish white	Opaque	32
Copper #	rose-white				Opaque	32
Cosalite #	white with a trace of cream		weak but distinct in oil	weak	Opaque	32
Costibite	grayish		weak, reddish brown or orange, to bluish	weak, gray-white with bluish and brownish tints	Opaque
Covellite #	indigo-blue, commonly highly iridescent, brass yellow to deep red		strong	marked, deep blue to blue-white	Opaque	32
Coyoteite	pale brownish gray with a pink tint		strong, colors from gray to dull golden orange	faint, from gray to pink	Opaque
Crednerite #	cream-white	strong, pale yellow to brownish gray	strong		Opaque	32
Crerarite	white-gray	none	none	none	Opaque	8
Criddleite	gray-blue		distinct to moderate, from buff to slate gray	weak, from gray-blue to slightly greenish gray-blue	Opaque	32
Cronusite !	gray with no internal reflections	strong	strong	in gray polarization colors	Opaque	8
Crookesite #			weak but distinct, in brownish tones		Opaque	32
Cubanite #			distinctive		Opaque	32
Cuboargyrite !	gray				Opaque	8
Cupalite			very weak, from light gray to gray		Opaque	28
Cuprite #	gray blue with internal red reflections			anomalous	Transparent to translucent	32
Cuprobismutite #	gray tarnishing bluish		distinct		Opaque	32
Cuproiridsite	gray				Opaque	26
Cupromakovickyite !	grayish white with no internal reflections	moderate bireflectance in oil	strong in oil and moderate in air	none	Opaque	40
Cupropavonite	white		distinct	weak in air, weak to distinct in oil	Opaque	32
Cuprorhodsite	gray				Opaque	26
Cuprospinel	gray				Opaque	8
Cuprostibite	violet -rose		strong	creamy white to dark rose-violet	Opaque	32
Cylindrite #	galena white		distinct, gray to pale yellowish or brownish gray	exceptionally weak in air, stronger in oil	Opaque	32
Dadsonite	white with a greenish tint, with blood-red internal reflections in oil		distinct to strong, in greenish gray		Opaque	32
Damaraite	gray with white to colorless internal reflections	weak	weak	very weak, gray to slightly bluish gray	Transparent	32
Damiaoite !	bright white with a yellowish tint				Opaque	8
Danbaite	white with a milky blue tint, slightly yellowish compared to chromium				Opaque
Danielsite	gray		moderate, in shades of gray		Opaque	8
Daomanite *	light greenish yellow		strong	gold-yellow to grayish green	Opaque
Deanesmithite	dark bluish gray to pale gray with bright yellow-orange internal reflections	weak			Transparent	32
Delafossite #	brownish rose		strong		Opaque	32
Derbylite #	gray with bluish green internal reflections				Opaque	32
Dervillite #	white		moderate		Opaque	32
Dessauite !	ash gray with pale blue tones	low	weak	very weak	Opaque	16
Diaphorite #	white to grayish white		strong		Opaque	32
Digenite #	distinctly blue in polished section		mostly isotropic		Opaque	32
Dingdaohengite-(Ce) !	grayish yellow	weak	weak	observed in different gray tones	Translucent to Opaque	28
Djerfisherite	greenish yellow, close to khaki, to olive-drab				Opaque	32
Djurleite	gray		weak		Opaque	32
Doloresite #	gray with color variation along crystals		strong		Opaque
Domeykite #	tin white to steel gray, tarnishes yellowish, then to brownish, and finally to iridescence				Opaque	32
Drysdallite	grayish black with a yellowish tint		very strong, with colors from light bluish gray to purplish brown	strong, white to very light gray, to pinkish gray	Opaque	32
Dufrenoysite #	white, sometimes showing deep red internal reflections		strong, in brown-violet and dark green colors	very weak	Subtranslucent to opaque	32
Dukeite !	gray to purplish-gray with strong yellow internal reflections aligned with crystal direction	very weak		mid orange-brown	Translucent to transparent	80
Duranusite	gray-white with a brownish tint and brownish red internal reflections				Opaque	32
Dyscrasite #	silver white, tarnishing to lead-gray, yellowish, or black		weak	very weak	Opaque	32
Dzharkenite	pink-yellow	absent	absent	absent	Opaque	8
Ecandrewsite	grayish white with a pinkish tint		strong, greenish gray to black	weak	Opaque	8
Eclarite	whitish gray, bluish gray in oil		distinct in air, strong in oil	moderate to distinct	Opaque	8
Edgarbaileyite	gray to light gray with pale lemon-yellow internal reflections.	weak to strong		none	Translucent to Opaque	124
Edgarite !	similar to molybdenite	distinct	strong, from almost white to dark brown	distinct, from gray to light gray with a bluish tint	Opaque	8
Edoylerite	pale gray to bluish gray with brilliant pale yellow internal reflections	weak			Transparent to Opaque	32
Ellisite	light gray with a purplish tint with deep red to deep orange-red internal reflections		blue-purple to red-purple to brownish orange	very weak, in colors from light purplish gray to light pinkish gray	Opaque	8
Emilite !	tin white with no internal reflections	very weak, whitish to yellowish tints	moderate with greenish to grayish rotation tints		Opaque	16
Emplectite #	light yellow			very low	Opaque	32
Empressite #	grayish white with no internal reflections	moderate to strong	strong, gray to yellowish white to grayish blue	very strong, in gray to creamy white	Opaque	8
Enargite #	gray to light pinkish brown with deep red internal reflections		very strong, dark violet-red or olive green tones	weak	Opaque	32
Erdite				extreme, brilliant reddish orange though greenish grays and pinkish grays to dark gray	Opaque	28
Eskebornite #	brown-yellow or cream-yellow, sometimes with an orange tint		marked, yellowish to tan	creamy yellow to yellowish brown	Opaque	32
Eskimoite	galena white		distinct to strong, light gray to steel bluish black	absent in air, absent to weak in oil	Opaque
Eskolaite #	gray with emerald green internal reflections				Opaque	32
Eucairite #	tin-white with a faint creamy tinge		strong	weak	Opaque	32
Famatinite #	pale brownish pink		strong, greenish yellow and purplish red	weak, light orange, pink-violet	Opaque	32
Feinglosite !	very pale brownish gray	very weak			Transparent	32
Ferberite #		weak	distinct		Nearly opaque	32
Ferriallanite-(Ce) !	black with red or orange internal reflections				Opaque to translucent
Ferronickelplatinum	rosy cream		weak		Opaque	30
Ferrorhodsite	gray				Opaque	16
Ferroselite #	white with a gray-brown hue		strong, from gray to lilac-gray	distinct	Opaque	32
Ferroskutterudite !	white	none	none	none	Opaque	40
Ferrotaaffeite-6N3S	gray		very weak		Semitransparent	8
Fersilicite *	tin white				Opaque