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Opaque Minerals sorted by Mineral Name |
( Bold - Valid Mineral Name)
(* - Mineral Name is Not IMA Approved)
(! - New Dana Classification Number Has Been Changed or Added)
(? - IMA Discredited Mineral Species Name)
(# - Grandfathered as valid)
Pages: [ 1 ] [ 2 ] [ 3 ] [ 4 ] [ 5 ] [ 6 ] [ 7 ] [ 8 ] Reflectivity Help
| Mineral Name | Reflected Light Color | Bireflectance | Anisotropism | Pleochroism | Diaphaneity | Reflectivity Record Count |
| Acanthite # | none | weak | none | Opaque | 32 | |
| Aguilarite # | very weak | Opaque | 32 | |||
| Aikinite # | white, cream | distinct | cream white to pure white or light brown | Opaque | 32 | |
| Aktashite | white | weak in shades of blue | Opaque | |||
| Alabandite # | gray white | Opaque | 32 | |||
| Alacranite | light gray with rose-yellow internal reflections | Transparent | 26 | |||
| Aleksite | light pale gray with slight greenish tint | weak | Opaque | 26 | ||
| Algodonite # | bright cream white | weak | Opaque | 32 | ||
| Allargentum # | weak | Opaque | 32 | |||
| Altaite # | white with a delicate greenish hue | Opaque | 32 | |||
| Alumotantite | observed | Transparent | 6 | |||
| Anatase # | weak | Transparent to translucent | 32 | |||
| Andorite # | white | Opaque | 32 | |||
| Andreyivanovite ! | creamy white | Opaque | ||||
| Anduoite | white with pink tint | marked in air from brownish yellow to grayish green, pale red to pale green, pronounced in oil | noticeable in air, from pinkish grayish white to pinkish white, distinct in oil | Opaque | ||
| Angelaite ! | yellowish to brownish with no internal reflections | moderate | distinct | Opaque | 8 | |
| Ankangite | light rose-reddish gray | weak to distinct | distinct | Opaque | 2 | |
| Antimony # | weak in air, lively in oil | very feeble | Opaque | 32 | ||
| Arcubisite | light gray with faint olive-brown tint | distinct in air, strong in oil, cream to bluish green | Opaque | 24 | ||
| Ardaite | distinct | distinct | Opaque | 14 | ||
| Argentopentlandite | cinnamon-brown | Opaque | 32 | |||
| Argentopyrite # | white, bright gray | strong, deep blue to pale blue-gray | Opaque | 32 | ||
| Argentotennantite | light gray to greenish gray | Opaque | 32 | |||
| Argutite | distinct | Transparent to Opaque | 32 | |||
| Argyrodite # | gray-white with a violet tint | weak | very weak | Opaque | 80 | |
| Armalcolite | gray to tan | strong, pale gray to dark bluish gray | observed | Opaque | 16 | |
| Arsenic # | distinct, yellow brown and light gray to yellowish gray | feeble | Opaque | 32 | ||
| Arsenolamprite # | weak | Opaque | 30 | |||
| Arsenopalladinite | white with yellowish creamy tint | strong, red and golden brown to blue-gray in air, khaki-brown to blue gray in oil | Opaque | 32 | ||
| Arsenopyrite # | white, faint yellow tint | strong, red-violet | weak, white with bluish tint to faint reddish yell | Opaque | 32 | |
| Arsenosulvanite ? | distinctive yellowish brownish tint | Opaque | 32 | |||
| Arsenpolybasite | weak | Opaque | ||||
| Aschamalmite | creamy white | moderate, from gray to red-brown | Opaque | 38 | ||
| Ashanite ? | pale bluish gray | Opaque | 28 | |||
| Asisite | gray with internal reflections | weak in oil, gray, not noticable in air | Transparent | 32 | ||
| Athabascaite | strong, creamy white to dark blue | distinct, light gray to blue-gray | Opaque | 32 | ||
| Atheneite | white with bluish tint | distinct | very weak, in pale yellow-white to bluish gray-white | Opaque | 32 | |
| Atokite | light cream | slight due to strain | none to slight | Opaque | ||
| Auricupride # | violet rose | Opaque | ||||
| Aurivilliusite ! | resembles cinnabar, light sensitive, no internal reflections, shows red light coalescing phenomenon | Opaque | ||||
| Aurorite | strong, cream white to medium black | yellow-gray to brownish gray | Opaque | 32 | ||
| Aurostibite # | white with pink tint | Opaque | 32 | |||
| Avicennite # | pale to medium gray | Opaque | 14 | |||
| Babkinite ! | yellowish white | almost absent | distinct | weak, bluish brown tints | Opaque | 8 |
| Balkanite | white gray | strong | Opaque | 24 | ||
| Barquillite ! | gray with a pale violet tint | very weak | very weak | very weak | Opaque | 32 |
| Barstowite | white with abundant colorless internal reflections | moderate, gray to dark gray | weak to moderate | Transparent to Opaque | 32 | |
| Bartonite | yellowish green-gray to yellowish green-brown | very weak | Opaque | 32 | ||
| Batiferrite ! | pale gray | distinct in air, weak in oil | moderate | none | Opaque | 16 |
| Baumhauerite | white with deep red internal reflections | strong, colorful in green, violet, blue-green or yellow | Opaque | 32 | ||
| Baumstarkite ! | gray to white | weak to moderate | strong to weak | none | Opaque | 64 |
| Bellidoite | creamy white | very weak in gray colors | very weak | Opaque | ||
| Benavidesite | white with a greenish tint with rare dull red internal reflections. | strong with tints of brown and blue | weak | Opaque | 32 | |
| Benjaminite # | creamy white to very pale brownish | strong | Opaque | 32 | ||
| Benleonardite | very pale blue | moderate to strong, in tints of brown, blue, and gray | Opaque | 32 | ||
| Berdesinskiite | reddish brown | weak | Opaque | 32 | ||
| Berryite | gray white | distinct to strong, from gray-white to red-brown | weak to distinct | Opaque | ||
| Berthierite # | gray | strong | marked | Opaque | 32 | |
| Berzelianite # | isotropic, sometimes anisotropic | Opaque | 32 | |||
| Betafite # | almost colorless | Translucent to Opaque | 32 | |||
| Betekhtinite # | bright cream parallel to elongation, stronger yellowish cream perpendicular | strong, distinctly colored | Opaque | 32 | ||
| Bezsmertnovite | bright orange yellow | weak, in neutral gray shades | Opaque | 30 | ||
| Bismuth # | white, brilliant creamy | distinct | feeble | Opaque | 32 | |
| Bismutohauchecornite | weak | moderate | Opaque | |||
| Blatterite | exhibits red-orange internal reflections | buff, creamy buff, pale buff | weak to distinct, in shades of grayish brown | Opaque | 32 | |
| Blossite | white, with red-brown internal reflections | weak to moderate, in shades of cream-white | moderate, gray to creamy gray-brown | Opaque | 8 | |
| Bohdanowiczite | pale creamy yellow to pink | noticeable, distinctly stronger in oil, in yellowish gray tones | Opaque | 8 | ||
| Borishanskiite | gray white | barely noticeable to moderate, in yellowish gray tones | Opaque | 20 | ||
| Bornite # | brown, pinkish | weak | weak but noticeable | Opaque | 32 | |
| Borovskite | white | isotropic to slightly anisotropic | Opaque | |||
| Boulangerite # | distinct | weak | Opaque | 32 | ||
| Bournonite # | weak in air | very weak | Opaque | 32 | ||
| Bowieite | pale gray to pale gray-brown | weak, dark gray to very dark brown | Opaque | 32 | ||
| Braggite # | white | distinct, in purplish and pinkish shades of gray and brown | Opaque | 32 | ||
| Breithauptite # | light copper red with violet tint | very noticeable in air and oil | very distinct | Opaque | 32 | |
| Brezinaite | brownish gray | Opaque | ||||
| Briartite | gray to gray blue | weak in air, distinct in oil | Opaque | 32 | ||
| Brodtkorbite ! | white | strong | weak to strong | weak to moderate | Opaque | 16 |
| Bukovite | weak, creamy gray to gray | Opaque | 32 | |||
| Bursaite ? | white | strong, in gray-bluish and yellowish colors | weak, white with blue tint to brown to light gray | Opaque | ||
| Cabriite | pink with slight lilac tint | strong, in grayish brown to golden colors | detectable | Opaque | 28 | |
| Cadmium | tin white with bluish tint | Opaque | ||||
| Cadmoindite ! | gray with brown-red internal reflections | none | none | none | Translucent | 8 |
| Cadmoselite # | light gray in air, slightly brown in oil with brownish internal reflections | weak | Translucent to Opaque | |||
| Calaverite # | white | weak | weak | Opaque | 32 | |
| Calvertite ! | pale bluish gray | none | none | none | Opaque | 8 |
| Cameronite | distinct, medium gray to slate-gray to brownish gray | slight, pale gray to pale brownish gray | Opaque | 32 | ||
| Canfieldite # | gray white with violet tint | Opaque | 32 | |||
| Cannizzarite # | strong, from blue to gray | Opaque | 32 | |||
| Carlinite | white with faint bluish cast | moderate to distinct | brownish gray to bluish gray | Opaque | 8 | |
| Carlsbergite | light gray with a rose-violet tint | Opaque | 8 | |||
| Cassiterite # | light gray with white to brownish internal reflections | strong | strong to very weak | Transparent to translucent to opaque | 32 | |
| Catamarcaite ! | grayish white with a distinct brownish tine with red internal reflections | very weak in oil, absent in air | weak in shades of gray | none | Opaque | 80 |
| Cattierite # | white | Opaque | 32 | |||
| Cechite | gray white with a yellowish tint, whitish, yellowish or rosy internal reflections | weak to imperceptible | perceptible to strong, light gray to dark gray with brownish tint | Opaque | 30 | |
| Cernyite | very weak in shades of gray | Opaque | 8 | |||
| Cesplumtantite | weak | strong | Transparent | 8 | ||
| Chabourneite | white with red internal reflections noted along cracks | strong, in bluish and greenish colors | weak | Opaque | 32 | |
| Chalcocite # | weak | Opaque | 32 | |||
| Chalcophanite # | white with deep red internal reflections | very strong | very strong, in gray and white | Opaque | 32 |