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 5" x 2"
Brown glaze is from 26° 59.12° north, 91° 17.6° West and is more like something I want to wear as lipstick than any sediment I've touched since I began with seafloor mud 15 years ago! My affinity for it was so strong I used it on this bowl with no prior testing (and that's a rare risk).
The porcelain clay was so soft that four pressure points from my fingers dimpled the clay which later (in the kiln) caused the expanded molten colorless seaglass to rise up, merge with some color from the mud, and relax back down in a squarish shape. Rare risk, rare outcome.
Lavender glaze on the rim assembled from refined materials.

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 5" wide x 3.25" high
Interior is a thick application of sediment from inside an amphora from the 8th century B.C. It says, "Mediterranean shipwreck, carriers of wine, amphora sediment from ship named Tanit or Elissa." Seaglass center.
Rim and foot of glazes assembled from refined materials.

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 5" wide x 2.75" high
Says on back band -- Glacial sarsen from stoney valley of Fyfield Down, where STONEHENGE stones were. Thanks to friends."
Rim and foot are matte green assembled from refined materials. Center of sea glass. NOTE: small skips on rim where clay shows through.
A piece similar to this but more exceptional can be seen and purchased at "Grenon's of Newport." where they specialize in unique -- including watches, diamonds, jewelry, and porcelains glazed with precious geological and marine samples.

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 5.5" x 2.5"
On porcelain clay, words say: glacial sarsen from stoney valley of Fyfield Downs where Stonehenge stones once were. Rim and foot assembled from refined materials. Center of seaglass.

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 5" x 2.5"
On pocelain clay, words say: In: iridilum anomaly ~ dinosaur killing cloud of extraterrestrial dust from Cretacious Tertiary Boundary ~ drillings into mid-Atlantic Ridge ~ Earth crust slurry melted ~ 23.5° North and 45° West.
Center of seaglass. Rim and foot of glazes assembled from refined materials.

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 6.75" x 2"
Words on rim say, "Snowball Earth 635 million years ago ice (or slush) at the equator (?) ask this melted Namibian rock powder."
The piece is a play on colorlessness; I used clear sea glass in the center, the rock powder, a matte white and a shiny white glaze on white clay.

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 6" x 2.5"
On porcelain clay, words say: Australian white ochre and red from Broome and Earth crust below us cycling. White ochre on the back didn't melt much--it's sharp. Seaglass center, with a small chunk of mauve rock that fused into it during firing. Rim and foot are glazes assembled from refined materials.

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 4" wide x 2.5" high
On translucent porcelain, the brown is the marine sediment glaze. Words in rim say, "Costa Rican Accretionary Prism, where Earth's plates collide, scrape and yield." The sediment was applied thinky on the exterior.
Glazes assembled from refined materials are celadon and copper green.

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 6" x 2"
Sediment on interior fused onto translucent porcelain and contracted in ways that reveal its character and also the shape on which it contracted. Seaglass center. Rim of lavender and black slip glaze on the back were assembled from refined materials.

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 5" x 2.25"
On porcelain clay, words say: 26° 59.12'north 91°.61' west. Center of seaglass. Rim and foot of glaze assembled from refined materials.

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 6" x 3"
Brown is the soil from Fyfield Down that's seen thin and thick and in transparent washes and opaque clumps.
Rim from glaze assembled from refined materials. Center of sea glass.

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 6.5" x 2.5"
On porcelain clay, words say: glacial sarsen from Fyfield Downs, a stoney valley where Stonehenge stones were.
Glaze on rim and foot assembled from refined materials. Center of seaglass.

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 6" wide x 3" high
Translucent porcelain, speckled brown interior is from Costa Rican Accretionary Prism and area inside surrounding blue center is from Mid-Atlantic Ridge, as is the exterior glaze -- Earth crust slurry spread thinly on porcelain -- when conditions are right -- makes a smooth lustrous translucent glaze (so different from the same materials thicker on stoneware!).
Rim and foot are glaze assembled from refined materials.

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 6" wide x 2.75" high
On porcelain clay, says, "Sea glass framed by seabed sediment from 46° north 125° west (melted)Washington Margin."
Rim of rutile slip and foot of matte green glaze were assembled from refined materials.

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 6.5" x 1.75"
Kane Fracture Zone rock saw glop melted 23.5°N 45°W, remagmized from Earth's mantle. Seaglass center, glaze on rim assembled from refined materials.

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 7" x 2.75"
Brown glaze from drillings into mid-Atlantic Ridge at 23.5°N 45°W. Rocks cut, slurry melted, 1.5 to 2.5 million years old. Darker brown interior was applied more thickly than lighter brown exterior.
Sea glass center and rim glaze of matte green and lavender were assembled from refined materials.

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 4" x 2.5" Porcelain
Nothing but this sediment applied thickly and melted. To me this is georgeous with mystery, crustals, and clues to chemistry.

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 4.5" x 3"
Exterior writing on translucent porcelain tells the story.

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 4' wide x 3" high
Arctic seafloor sediment on porcelain clay (3 views). Sediment's tendencies to contract and display effects of thin and thick applications are all here to observe. Coordinates included. Foot is a copper glaze, assembled from refined materials.

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 4" wide x 3" high
Very translucent porcelain got a big blob of soupy Earth crust slurry poured into the center. Some gassy event got frozen into the cooled bowl -- blistered and split showing tension between the refined porcelain particles and the unrefined rock slurry. Same slurry applied thinly on the exterior of the bowl fired smoothly.
Band of asteroid-laden sediment is on the inside and outside -- in a narrow band underwhich words are written.

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 6.25" wide x 23.5" high
Interior from center to midway was brushed with material from CDH10--the first retrieved sediment from the "Long Core Sea Trial" of 2007. An earlier Bermuda Rise sample that's very golden flowed over it and both, mixed together, pooled in the center.
Interior says, "CDH10, High Noon, 5 September 2007, 33° 41.199' North, 57° 36.903”' West. 4,583 meters deep."
Copper green glaze, assembled from refined materials, by itself on the back is green but on the rim, where it overlaps with white glaze, it made marroonish pinkish-red. This is a cue to how oxidizing and reducing atmospheres in the kiln work to create variety.

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 5" wide x 2.5" high
Interior from center to midway was brushed with material from CDH10--the first retrieved sediment from the "Long Core Sea Trial" of 2007. An earlier Bermuda Rise sample that's very golden flowed over it and both, mixed together, pooled in the center.
Exterior says, "CDH10, 33° 41.199' North, 57° 36.903' West. 4,583 meters deep."
Glazes assembled from refined materials on foot and back.

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