Uncommon rocks & minerals
Uncommon rocks and minerals require effort to locate: a specific locality, a knowledgeable dealer, or patience at a known dig. Many become staples of a serious cabinet once you have a few good specimens.
Showing 481–521 of 521 uncommon entries (page 5 of 5).
Tyroliteuncommonmineral · Mohs 1.5-2green, bluish-green, apple-green
Tyuyamuniteuncommonmineral · Mohs 2yellow, canary yellow, greenish-yellow
Ullmanniteuncommonmineral · Mohs 5-5.5silver-white, steel-gray- No imageUlvöspineluncommonmineral · Mohs 5.5-6black, brownish-black
Uraniniteuncommonmineral · Mohs 5-6black, brownish-black, gray- No imageUranium Oreuncommonmineral · Mohs 5-6black, brown, gray
Uranocirciteuncommonmineral · Mohs 2-2.5yellow, greenish-yellow
Uranopiliteuncommonmineral · Mohs 2.5yellow, bright yellow, greenish-yellow
Uviteuncommonmineral · Mohs 7-7.5brown, green, yellow
Valentiniteuncommonmineral · Mohs 2.5-3white, colorless, gray
Vanadiniteuncommonmineral · Mohs 3red, orange, brown
Varisciteuncommonmineral · Mohs 3.5-4.5apple green, emerald green, bluish green
Violariteuncommonmineral · Mohs 4.5-5.5violet-gray, silver-white, metallic-gray
Volborthiteuncommonmineral · Mohs 3-3.5yellow, green, olive-green
Voltaiteuncommonmineral · Mohs 3-4black, greenish black
Wairakiteuncommonmineral · Mohs 5.5white, colorless, grayish
Warditeuncommonmineral · Mohs 5green, bluish-green, white
Watermelon Tourmalineuncommongemstone · Mohs 7-7.5pink, green, white
Wavelliteuncommonmineral · Mohs 3.5-4white, yellow, green
Welo Opaluncommongemstone · Mohs 5.5-6.5white, yellow, orange
Whewelliteuncommonmineral · Mohs 2.5-3colorless, white, yellowish- No imageWhite Corundumuncommonmineral · Mohs 9white, colorless
White Star Corundumuncommongemstone · Mohs 9white, colorless
Willemiteuncommonmineral · Mohs 5.5white, green, yellow- No imageWilliamsiteuncommonmineral · Mohs 2.5-3.5apple-green, olive-green, yellowish-green
Witheriteuncommonmineral · Mohs 3-3.5white, gray, yellow
Wolframiteuncommonmineral · Mohs 4-4.5brown, black, reddish-brown
Wulfeniteuncommonmineral · Mohs 3orange, yellow, red
Wurtziteuncommonmineral · Mohs 3.5-4brown, yellowish-brown, reddish-brown
Wyoming Jadeuncommonmineral · Mohs 6-6.5green, black, olive
Xenotimeuncommonmineral · Mohs 4-5yellowish-brown, reddish-brown, yellow
Xenotime-(Y)uncommonmineral · Mohs 4-5yellowish-brown, brown, reddish-brown
Xonotliteuncommonmineral · Mohs 6-6.5white, gray, colorless- No imageYellow Apatiteuncommongemstone · Mohs 5yellow, golden yellow, honey yellow
- No imageYellow Beryluncommongemstone · Mohs 7.5-8yellow, golden yellow, greenish yellow
- No imageYellow Garnetuncommonmineral · Mohs 6.5-7.5yellow, honey-yellow, yellow-green
Yellow Sapphireuncommongemstone · Mohs 9yellow, golden, canary
Yowah Nutuncommonfossil · Mohs 5.5-6.5brown, red, green
Yugawaraliteuncommonmineral · Mohs 4.5white, colorless, yellowish
Zinnwalditeuncommonmineral · Mohs 2.5-3yellowish-brown, brown, dark gray
Zippeiteuncommonmineral · Mohs 2orange, yellow, orange-yellow
Hunt the unusual
Open RockHoundR to find mapped spots and log finds wherever they show up.
