Gray blue rocks & minerals
Gray blue rocks and minerals share this color due to specific trace elements, chemical bonds, or structural defects. Color alone rarely settles an identification, use it with hardness, luster, and streak.
12 gray blue rocks and minerals in this encyclopedia.
Aphthitaliteuncommonmineral · Mohs 3blue, colorless, green
Blue Chertcommonmineral · Mohs 6.5-7blue, gray-blue, light blue- No imageBlue Jaspercommonmineral · Mohs 6.5-7blue, gray-blue, dark blue
Brucitecommonmineral · Mohs 2.5white, blue, gray
Kainitecommonmineral · Mohs 2.5-3colorless, blue, violet
Kosnariteraremineral · Mohs 4.5colorless, gray blue, light green
Koutekiteraremineral · Mohs ~4gray blue
Lengenbachiteraremineral · Mohs 1.5-2gray blue, steel gray
Neyiteraremineral · Mohs 2.5lead gray, gray blue, yellow blue
Owyheeiteuncommonmineral · Mohs 2.5lead gray, gray blue, yellowish
Sekaninaiteraremineral · Mohs 7-7.5blue, blue violet, violet blue
Serendibiteraremineral · Mohs 6.5-7blue, blue green, gray blue
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