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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Mouseover Mineral Name: IMA Status
Mineral Name	Reflected Light Color	Bireflectance	Anisotropism	Pleochroism	Diaphaneity	Reflectivity Record Count
Inaglyite			weak		Opaque
Incaite	grayish white		distinct in greenish brown and brownish gray		Opaque	8
Indite	white				Opaque	32
Indium	light rose-white		weak		Opaque
Ingersonite	light gray with yellow and white internal reflections				Transparent to Translucent	32
Ingodite			moderate	noticeable in air, from creamy to grayish white	Opaque	8
Insizwaite	white				Opaque	30
Irarsite	white, grayish with blue tint				Opaque	30
Iridarsenite	medium gray with brownish tint		weak but distinct, from medium gray to pale orange brown	weak to none	Opaque	8
Iridisite *	grayish brownish white	none	none	none	Opaque	18
Iridium #	white, silver with yellow tint				Opaque	32
Iron !	white				Opaque	32
Irtyshite		noted	noted		Transparent	8
Isocubanite	pinkish brown, similar to bornite				Opaque	30
Isoferroplatinum	bright white				Opaque
Isolueshite !	bluish with reddish-brown internal reflections				Opaque to subtranslucent	16
Isomertieite	pale yellow white		weak in shades of dull brown		Opaque	80
Iwakiite	light olive gray		moderate, yellowish to brownish gray		Opaque	28
Izoklakeite			distinct, from greenish gray to dark gray to brownish gray	pale greenish white to darker greenish white or gray	Opaque	32
Jacobsite #	grayish with with olive tint and brown internal reflections				Opaque	32
Jadarite !	dark gray with abundant white internal reflections	weak		none	Translucent to Opaque
Jagueite !	creamy yellowish with no internal reflections	weak to moderate in air, distinct in oil	moderate	light buff to creamy buff	Opaque	80
Jalpaite #			distinct in greenish blues and light green	distinct in oil, brownish gray to pure gray	Opaque	32
Jamesonite #	gray, blackish		strong	distinct	Opaque	32
Janggunite	grayish white		very strong, bluish or brownish	distinct, whitish to light gray in oil	Opaque
Jankovicite	white to bluish white	low to medium	distinct to strong, with gray-blue to green-blue effects		Opaque	8
Jaskolskiite	gray		strong without distinct colors	moderate, in yellow tints	Opaque	32
Jedwabite !	grayish white	negligible	negligible	none	Opaque	28
Jensenite	gray with bright green internal reflections at grain boundaries	weak			Transparent	30
Jeppeite	gray, may have golden internal reflections	weak			Opaque	32
Jonassonite !	pale gray	weak	distinct in shades of green and purple	weak pale slightly bluish gray to pale gray	Opaque	64
Joseite #	white		nearly isotropic in basal sections, else moderately anisotropic greenish gray to dark greenish gray		Opaque	32
Joseite-B #	creamy white		distinct, gray to dark brown		Opaque
Junoite	creamy white		strong	strong, from cream to gray with green and mauve tints	Opaque
Kadyrelite	grayish white with intense orange internal reflections				Transparent	12
Kalininite	light creamy				Opaque	26
Kalungaite !	creamy to creamy gray with no internal reflections	none	none	none	Opaque	16
Kamiokite	gray with an olive tint	strong, gray to olive-gray	strong, light brownish gray to dark greenish gray		Opaque	32
Karelianite	brownish olive-gray	weak	strong, reddish brown to gray		Opaque	32
Kashinite	light gray		moderate to strong with reddish violet tints	weak	Opaque	28
Kawazulite			strong, bluish gray to brownish gray to gray	pinkish creamy white to white with creamy tint	Opaque
Keilite !	gray				Opaque	80
Keithconnite	cream colored, dull cream with brownish tint with kotulskite, gray with telluropalladinite		moderate to strong	not detectable in air, very slight in oil	Opaque	32
Kermesite #			very strong to extreme		Translucent to Opaque	32
Kharaelakhite	brownish lilac tint		distinct, from pink-lilac to bluish		Opaque
Khatyrkite	basal sections bluish, otherwise, blue to creamy pink		distinct, grayish brown to red		Opaque	28
Kiddcreekite	pale gray				Opaque	32
Kieftite	tin white in air and oil				Opaque	8
Kingstonite !	pale brownish gray with no internal reflections	weak	weak	weak with dull gray and brown tints	Opaque	16
Kirkiite	white		weak		Opaque
Kitkaite			distinct, from pale gray to pink or purple		Opaque	32
Klockmannite #			strong, brownish gray to gray-white		Opaque	32
Kobellite #	white		distinct	weak	Opaque	32
Kolarite	gray				Opaque	32
Koragoite	light gray	weak	weak	none	Opaque	8
Kostovite	creamy white		distinct		Opaque	32
Kotulskite	cream or pale yellow		strong, from gray to dark bluish gray	distinct, from light cream to darker grayish cream	Opaque	32
Koutekite #	bluish gray		strong		Opaque	32
Krennerite #	creamy white		strong, to dark brown	weak	Opaque	32
Krettnichite !	reddish brown	distinct	strong	slight	Translucent to opaque	16
Krupkaite	grayish white				Opaque
Krutaite			Zones rich in Co and Ni are anisotropic in yellow-brown tints		Opaque	32
Krutovite	bright white with a rose tint, paler than associated nickel-skutterudite				Opaque
Kudriavite !	white, no internal reflections	distinct	strong		Opaque	8
Kullerudite	creamy grayish white, paler than penroseite		very strong, yellowish gray to gray to almost black	distinct in oil, gray to pale gray	Opaque
Kupcikite !	grayish white with no internal reflections	perceptible in air, moderate in oil	moderate in air, strong in oil	weak in air, white with bluish tints, enhanced in oil	Opaque	40
Kuramite	neutral gray		distinct, in shades of brown		Opaque	28
Kuranakhite	light gray with a bluish tine with no internal reflections	weak, distinct in oil, with rose tints	distinct, blue to brown			8
Kusachiite	gray, with deep red to dark brown internal reflections	weak	weak to distinct	gray with a faint bluish tint, and brownish gray	Opaque	8
Kutinaite	grayish white to light blue-gray				Opaque	32
Kyzylkumite			distinct		Opaque	24
Laffittite	bluish white with numerous purple-red internal reflections		strong, from light gray-blue to dark gray	strong	Translucent to Opaque	32
Laflammeite !	cream with brownish tints	weak	weak, with brownish gray to grayish brown	none	Opaque	16
Laforetite !	brownish gray in oil with abundant strawberry red internal reflections		strong, brick-red with an orange tint to bluish-gray purplish	weak, from brown to brown-gray	Opaque	8
Lafossaite !	white with white internal reflections	none	none	none	Translucent	8
Laitakarite	galena white		moderate, dark brownish gray		Opaque	32
Lakargiite !	red-brown and pink internal reflections				Translucent to Subopaque
Langisite	pinkish buff		moderate, in bluish gray and light brown	weak	Opaque
Laphamite	gray-white, strong fiery red internal reflections, golden yellow near scratches		moderate, in tints of gray	moderate, from white to gray	Translucent to Subopaque	32
Lapieite			strong, very pale blue to intense yellowish pink tints	shades of greenish gray to gray	Opaque	32
Larosite	whitish buff		moderate, in gray and greenish buff	weak	Opaque
Launayite			strong	fairly strong, from white to gray	Opaque	8
Laurite #	white to gray, bluish				Opaque	32
Lautite #			weak	very weak	Opaque	32
Lead #	gray-white with a brownish tint and brownish red internal reflections				Opaque	32
Leadamalgam	yellowish white			weak, bluish gray to pale bluish gray	Opaque
Lenaite	grayish white	none	moderate in yellowish tints	none	Opaque	8
Lengenbachite #			weak		Opaque	32
Lepidocrocite #	light gray	strong	strong		Opaque	32
Lillianite #	white		distinct	very weak	Opaque
Lindqvistite	gray with a faint brownish tint	weak	moderate, in bluish gray to browns		Opaque	8
Lindsleyite	tan		weak, pale tan to brown	weak, buff-white to tan	Opaque	32
Lisiguangite !	bright white with a yellowish tint	none	weak to moderate (blue-greenish to brown)	none	Opaque	16
Lithiophorite #	light gray to dark brownish gray		extreme, ligh gray to dark brown to bluish gray	very strong	Opaque	32
Lithiotantite	creamy pink to brownish pink next to cassiterite; grayish white otherwise		weak		Transparent	8
Lithiowodginite	grayish white	weak	strong		Translucent to Opaque	8
Liveingite #	lead gray with deep red internal reflections		distinct		Opaque	32
Livingstonite #	white with deep red internal reflections				Opaque to subtranslucent	32
Lollingite #			strong		Opaque	32
Loparite-(Ce) #	light gray or white with a creamy tinge and brownish red internal reflections				Opaque	32