海玻璃(sea-glass)(英文).ppt

——美人鱼的眼泪
sea glass
introduction
Sea glass or beach glass is physically and chemically weathered glass found on beaches along bodies of fresh and saltwater. These weathering processes produce natural frosted glass. Sea glass can be collected as a hobby and can be used to create jewelry
origin
bottles
garbage
color
The color of sea glass is determined by its original source. Most sea es from bottles, but it can e from jars, windows or ceramics.
diaphanous
The mon colors of sea glass are kelly green, brown,and white (clear).These e from bottles used panies that sell beer, juices, and soft drinks.
green
brown
mon colors include jade, amber (from bottles for medicine, spirits, and early bleach bottles) .
Purple sea glass is very mon .
location
Sea glass can be found all over the world, but the beaches of the northeast United States, California, northwest England, Hawaii, Australia, Italy and southern Spain are best times to look are during spring tides especially perigean and proxigean tides, and during the first low tide after a storm.
Glass Beach
Glass beach
——the most special glass beach
California State Fort Bragg