 |
This past spring I found something very unusual at our local gem and
mineral show. Among the shimmering collection of crystals and
elegant gemstone beads were strings of black glossy nuggets that at
first glance appeared to be obsidian or volcanic glass. However the
feel of these nuggets was distinctly different than obsidian. It was
intensely powerful and very energetic. The nuggets were tektites, a
glass formed from the impact of comets or asteroids with the earth.
The latest research shows that tektites are formed from earthly
material ejected into space when an impact occurs. The molten
material solidifies at least partially in space and then falls
earthward again, giving the glassy tektites strange, often
drop-like, shapes.
Tektites have a much finer texture that obsidian with almost no air
bubbles and no mineral inclusions and a much lower water and gas
content, because they are formed primarily in a space environment,
not the burning heart of a volcano. Tektite glass melts at a much
higher temperature than volcanic glass and is much more viscous.
Tektites are actually quite rare and are not evenly distributed
across the earth, but are found only in well-defined “strewfields.”
Probably the most well-known tektite is Moldavite. It comes from
Eastern Europe’s Moldavite Strewfield, which is divided into two
separate areas, each producing tektites of different colors and
textures. The clear, green, deeply grooved Moldavites have been
prized as gemstones for centuries. The green gem Moldavites have
sometimes been called “Sky Emeralds.”
The
tektites that I purchased are from the vast Australasian Strewfield.
It encompasses Southeast Asia, southern China, and parts of western
Australia. It stretches from the Indian Ocean in the west to the
Philippines in the east. Almost one-tenth of the Earth’s surface is
considered part of this enormous field. These tektites tend to be
dark and obsidian-like in appearance.
There are two North American areas, one in the Southeast called the
Georgia Strewfield, producing beautiful tektites that are a
translucent green, and another in Texas, producing a dark, deeply
grooved tektite.
The last known strewfield is in Africa’s Ivory Coast, and it extends
out into the Atlantic Ocean. These rare tektites are hard to find in
the heavily forested terrain. They are dark in color and tend to
have an egg or spherical shape.
Tektites have been valued by humankind since ancient times. Early
man took advantage of the strong glass to make flaked tools, and
tektites have been found at numerous archeology sites where they
were used as protective talismans and in jewelry.
I find these glossy little tektites very compelling, an unusual
blend of Earth and the vastness of space. Like meteorites, they are
a reminder that the Universe is very active, that things change,
that creation/destruction are part of an ongoing cosmic dance. Each
one has a strong individual presence and a deep connection to space
and time.
I intend to include tektites in necklaces, amulets, and medicine
pouches. I hope that you will enjoy these new and very unusual
creations.
- How To Contact
Us
You can reach Northwind Visions by e-mail, phone, or snail-mail.
Telephone: (575) 546-2823
Postal address: PO Box 481, Deming, NM 88031-0481
Electronic mail:
-
If you can not see
the mailto link above, please elect to allow active content on
this page.
|