What sea glass is imitating
Real sea glass is broken glass that spent years in surf and sand until its edges rounded and its surface was etched to a soft frost by salt water.
The shape and the frosting are the two things that define it, and both are reproduced here: pieces rounded into pebble forms, with glossy faces in most of the range and a matte one that carries the frosted look. The material is doing deliberately what a coastline does by accident.
Why the color has depth
In an opaque pebble the color is the surface of the stone. In a glass one the color is the whole body, so what reaches the eye has passed through a quarter inch of material.
That is why a glass pebble in blue looks nothing like a blue stone. The tone deepens toward the center of each piece and lightens at the edges, and a whole sheet carries a range of intensities from one color. Blue is the dominant color, with a yellow and a brown alongside it.
Glossy and the frosted piece
Most of this range is glossy and one is matte, and on glass those two are further apart than they would be on any other material.
A glossy glass pebble returns a sharp highlight from the top of every dome and reads as wet even when it is dry. A frosted one scatters the light at the surface instead, so the piece glows softly rather than glinting. The first is the more dramatic and the second is closer to what a beach actually produces.
The sheets and the thickness
12x12 sheets throughout, each covering a square foot, at a quarter of an inch thick.
A quarter inch is thin against the 3/8 inch that a stone pebble sheet uses, and that difference is the practical thing to know. Where sea glass pebble runs as a band inside a stone or ceramic field, the two surfaces will not finish flush unless the difference is taken up underneath.
The joint is part of the color
Pebbles meet at points, so the space between them is wide, and on a translucent material the joint does something extra: it sits behind and beside pieces you can partly see through.
A pale joint lifts the whole sheet and lightens every piece from the edges inward. A dark one deepens the color and makes each pebble read as a separate jewel. There is no neutral option, and it changes the sheet more than the choice of blend does.
Where sea glass pebble goes
A bath surround, a shower wall, a spa, a pool, a band inside a plain field and a panel behind a basin. It is most often used where water is present, which is both where the reference belongs and where the material is at its best, since glass takes up no water at all.
Pebble mosaic covers the river stone version, glass mosaic the flat glass sheets, and blue tile and mosaic the color across every material.