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moqui marbles, utah Iron oxide concretions (Moqui marbles) Moqui Marbles, hematite concretions, from the Navajo Sandstone of southeast Utah.

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Very Fine Mexican Jelly Fire Opal—. Most fire opal deposits are in Mexico. They consist of silicon dioxide or silica spheres arranged in an orderly pattern w/iron oxide dispersed throughout giving the fire opal its distinctive brilliant flame-like colors

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The Paria Mountains' 18 miles from Kanab, Utah in Hwy 89. Paria Wilderness, Utah, USA. These mountains are found beside a dirt road that connects to Highway 89 just before the Paria River. Hwy 89 takes you from Kanab Utah to Page Arizona. The side of the mountains have spectacular colours due to their encrusted minerals like iron oxides, manganese, cobalt

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Red Phantom Quartz or Quartz with iron oxide inclusions. ❦ CHRYSTALS ❦ semi precious stones ❦

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base glaze: 40 Potash Feldspar, 20 Whiting, 25 China Clay and 15 Flint. for black: 4% Nickel Oxide, 4% Red Iron Oxide, 2% Cobalt Carbonate

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Kaki (Persimmon, Tomato) Glaze | DEREK PHILIP AU | Cone11R | Anderson Ranch Kaki Custer Feldspar 45, Silica 20, Whiting 7, Kaolin 8, Talc 8, Bone Ash 12, Red Iron Oxide 13.5

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I love this simple line thing. Could easily do with the cobalt and a very thin brush, though the bottom is going to look clunky no matter what.

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