Sea Sediment: Also called Sea Jasper, Ocean Jasper, Emperor
Jasper
The latest additions to my etsy store.
Sediment is a naturally
occurring material that is broken down by weathering and erosion, and is
transported by wind, water, ice, and then gravity which act on the particles.
A deep trough in the sea just off land is ideal for the formation as rivers and
streams collect the sediment from the land and in time transfers this to the
sea or ocean. Nature also helps as tides gather pebbles, rock and even volcanic
ash and transfers this with the land sediment into these troughs. In time the
pressure from above compresses the sediment and liquids are squeezed out
leaving just the minerals themselves which form the rock.
There are many natural sea troughs in the world which form sea sediment but
those off the USA, South America and India are ideal as the chart shows.
The rock formed is not a hard rock and easily worked for jewellery.
Some sea sediment is dyed and It is difficult to determine which, the only 100%
way is to drill through the stone and see if the colour goes all the way
through. If all the stone is a shade of one colour all over it could be dyed.
Another option, which does no damage to the stone, is to see if the pattern and
colours follow from front side and back. © Copyright ApsoWest 2013
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