Gray rocks & minerals
Gray rocks and minerals are extremely common in the field. Hardness, density, and how the specimen breaks (fracture vs. cleavage) tell you more than color alone.
Showing 841–862 of 862 gray rocks (page 8 of 8).
Whetstonecommonsedimentary · Mohs 5-7gray, white, brown
Whitlockiteraremineral · Mohs 5colorless, white, gray- No imageWilkmaniteraremineral · Mohs 3-3.5white, gray
Willyamiteraremineral · Mohs 5-5.5white, gray
Witheriteuncommonmineral · Mohs 3-3.5white, gray, yellow
Witticheniteraremineral · Mohs 2.5gray, steel-gray, tin-white
Wollastonitecommonmineral · Mohs 4.5-5white, gray, cream
Wood Opalcommonfossil · Mohs 5.5-6.5brown, tan, gray
Wumuiteraremineral · Mohs 3.5black, gray
Xenotimeuncommonmineral · Mohs 4-5yellowish-brown, reddish-brown, yellow
Xifengiteraremineral · Mohs 6.5white, gray- No imageXingzhongiteraremineral · Mohs 5-6white, gray
Xonotliteuncommonmineral · Mohs 6-6.5white, gray, colorless- No imageYaroslaviteraremineral · Mohs 4colorless, white, gray
Ye'elimiteraremineral · Mohs 5-6colorless, white, gray
Yooperlitecommonmineral · Mohs 6gray, gray-brown- No imageYttriaite-(Y)raremineral · Mohs 4-5brown, yellow, gray
Zavaritskiteraremineral · Mohs 2-3yellow, white, gray
Zincraremineral · Mohs 2.5silver-white, gray, blue-gray
Zincobriartiteraremineral · Mohs 4gray, pinkish-gray- No imageZinkositeraremineral · Mohs 3.5white, colorless, gray
Zoisitecommonmineral · Mohs 6-7gray, green, pink
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