Amber

THE MINERALOID AMBER

Termite
Spider Flies Amber Unpolished Amber Spider
  Like: Share:  

Amber is a beautiful stone that is cut and polished and used as a valuable gemstone. It is very light in weight which allows it to be used in a large jewelry piece without discomfort. Amber, or fossil tree sap, has been known since antiquity. A fossil itself, it can contain many preserved insects and other animals and plants that are tens of millions of years old. These frequent fossil inclusions were made famous in the movie "Jurassic Park". The odd inclusions that are often seen in amber usually add to amber's unique look and in many cases greatly increase its value.

The fossils that are encased in amber probably got there when they flew or crawled on to the fresh seeping sap and then got stuck. The sap oozed over the trapped animals and perhaps fell to the ground and was later covered by dirt and debris. The sap later hardened and became a fossil.

The fossils are mostly insects such as gnats, flies, wasps, bees and ants. Occasionally more exotic insects are trapped in the amber such as grasshoppers, preying mantises, beetles, moths, termites, butterflies, etc. Other non-insect animals are found in amber too such as spiders, centipedes, scorpions and even frogs and lizards. No really large animals like mammals or birds are seen in amber but feathers and fur have been seen. Invaluable plant remains have also been found in amber including flowers, mushroom caps, seeds, leaves, stems, pine needles and pine cones. The rarity of the trapped fossils controls the value of the amber more so than the quality of the amber. Remember these are fossils and are not the same species that are alive today. Amber has greatly increased the knowledge of the evolution of insects and plants as well as enlivening the interest in paleontology in general.

Amber is often imitated by plastics, colored glasses and some modern tree resins. However, its hardness is usually greater and it is tougher than other resins. Its low specific gravity (amber can float on salt water) and inclusions can distinguish it from plastics and glasses.

PHYSICAL CHARACTERISTICS:

  • Color is amber yellow to orange.
  • Luster is resinous.
  • Transparency: Transparent to translucent.
  • Crystal System does not apply because amber is amorphous (meaning it does not have an ordered structure).
  • Habits include nodules embedded in shales or sandstones and those that are washed up on beaches.
  • Fracture is conchoidal.
  • Hardness is 2+.
  • Specific Gravity is approximately 1.1 (extremely light and can float in salty water).
  • Streak is white.
  • Other Characteristics: Can be burned, fluorescent under UV light and is much tougher (will not crumble as easily) than modern tree resins.
  • Notable Occurrences include all Baltic countries; Venezuela; Russia; Romania; Burma; in coal seams in Wyoming, USA and the Dominican Republic.
  • Best Field Indicators are color, density, toughness, softness and trapped insects.
Amethyst Galleries sells natural mineral specimens, including precious metals and gemstones. For Fine Jewelry, please visit our affiliates.

Amber Jewelry - Hover over an item for more information

This Site Awarded
Available AMBER specimens:
see this List of ALL specimens including SOLD ones
 

Copyright ©1995-2013 by Amethyst Galleries, Inc.
Site design & programming by galleries.com web services