Common rocks & minerals
Common rocks and minerals show up routinely in field collecting and on dealer tables. They are the right place to start a reference collection — most are inexpensive, durable, and well-documented.
Showing 721–780 of 780 common entries (page 7 of 7).
Thenarditecommonmineral · Mohs 2.5-3white, colorless, grayish- Thénarditecommonmineral · Mohs 2.5-3colorless, white, gray
Thermonatritecommonmineral · Mohs 1-1.5white, gray, yellow
Thundereggscommonmineral · Mohs 6.5-7multicolored, brown, gray
Tiger's Eyecommonmineral · Mohs 7golden-yellow, brown, reddish-brown
Tincalconitecommonmineral · Mohs 2white, colorless, gray- No imageTitanomaghemitecommonmineral · Mohs 5-6black, brownish-black, gray
Todorokitecommonmineral · Mohs 1.5-2.5black, brownish-black
Topazcommonmineral · Mohs 8yellow, brown, colorless
Tourmalinated Quartzcommonmineral · Mohs 7colorless, white
Tourmalinecommonmineral · Mohs 7-7.5black, green, pink
Travertinecommonsedimentary · Mohs 3-4white, tan, cream
Tremolitecommonmineral · Mohs 5-6white, gray, green
Trilobite Fossilscommonfossil · Mohs 3-5black, brown, gray
Trilobitescommonfossilbrown, gray, black
Tripolicommonmineral · Mohs 1-2white, gray, yellow
Tronacommonmineral · Mohs 2.5-3white, gray, yellow- No imageTube Agatecommonmineral · Mohs 6.5-7white, gray, blue
Tubulitecommonfossil · Mohs 3-4gray, brown, white
Tufacommonsedimentary · Mohs 3white, gray, yellow
Tuffcommonigneous · Mohs 2-4white, gray, tan
Turquoisecommonmineral · Mohs 5-6blue, blue-green, green
Turritella Agatecommonfossil · Mohs 6.5-7brown, tan, gray
Uintaitecommonmineral · Mohs 2-2.5black
Ulexitecommonmineral · Mohs 2.5white, colorless
Unakitecommonmetamorphic · Mohs 6-7green, pink, red
Uranophanecommonmineral · Mohs 2.5yellow, lemon-yellow, orange-yellow
Verde Antiquecommonmetamorphic · Mohs 3-5green, dark green, white
Vermiculitecommonmineral · Mohs 1.5-2brown, yellow-brown, golden-yellow
Vernaditecommonmineral · Mohs 1-2black, brownish-black
Vertebrate Fossilscommonfossil · Mohs 3-6brown, tan, black
Vesicular Basaltcommonigneous · Mohs 5-6black, dark gray, brownish-gray
Vesuvianitecommonmineral · Mohs 6.5green, brown, yellow- No imageVirginia Greenstonecommonmetamorphic · Mohs 3-4green, dark green, gray-green
Vivianitecommonmineral · Mohs 1.5-2colorless, white, pale green
Volcanic Ashcommonigneousgray, brown, black
Welded Tuffcommonigneous · Mohs 3-6gray, tan, pink- No imageWerneritecommonmineral · Mohs 5.5-6white, gray, yellow
Whetstonecommonsedimentary · Mohs 5-7gray, white, brown- No imageWhite Agatecommonmineral · Mohs 6.5-7white, milky white, translucent white
- No imageWhite Calcitecommonmineral · Mohs 3white, colorless
- No imageWhite Chertcommonmineral · Mohs 6.5-7white, cream, grayish-white
- No imageWhite Fluoritecommonmineral · Mohs 4white, colorless
- No imageWhite Opalcommongemstone · Mohs 5.5-6.5white, cream, off-white
- No imageWhite Sapphirecommongemstone · Mohs 9white, colorless
Wollastonitecommonmineral · Mohs 4.5-5white, gray, cream
Wonderstonecommonsedimentary · Mohs 6.5-7red, yellow, brown- No imageWonderstone Rhyolitecommonigneous · Mohs 5.5-6.5brown, tan, yellow
Wood Opalcommonfossil · Mohs 5.5-6.5brown, tan, gray- No imageYellow Baritecommonmineral · Mohs 3-3.5yellow, honey-yellow, golden-yellow
- No imageYellow Calcitecommonmineral · Mohs 3yellow, honey yellow, amber
- No imageYellow Chalcedonycommonmineral · Mohs 6.5-7yellow, golden yellow, mustard yellow
Yellow Fluoritecommonmineral · Mohs 4yellow, golden-yellow, honey-yellow
Yellow Jaspercommonmineral · Mohs 6.5-7yellow, mustard, ochre- No imageYellow Marblecommonmetamorphic · Mohs 3-4yellow, golden, cream
- No imageYellow Ochercommonmineral · Mohs 1-3yellow, brownish-yellow, ochre-yellow
Yooperlitecommonmineral · Mohs 6gray, gray-brown
Zeolitecommonmineral · Mohs 3.5-5.5white, colorless, yellow
Zirconcommonmineral · Mohs 7.5brown, red, yellow
Zoisitecommonmineral · Mohs 6-7gray, green, pink
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