The Hidden Land – The Reef

Aileen David

Hawthorn, Australia

Artist's Description

This is the last batch of my The Hidden Land collection from the Australian Museum.

As before, the handicaps and limitations of the shots are the same – behind glass cases and limited lighting. This collection features rocks and minerals highlighting their unique properties and formations. I always try to take as macro a shot as I can without loosing too much information about my subjects. Some post work was needed to bring out the textures and balance the lighting – Tone Curve, Saturation and Gamma.

Best viewed larger…really

Chrysocolla
Chrysocolla (hydrated copper silicate) is a mineral, (Cu,Al)2H2Si2O5(OH)4·nH2O. It is of secondary origin and forms in the oxidation zones of copper ore bodies. Associated minerals are quartz, limonite, azurite, malachite, cuprite, and other secondary copper minerals.
Chrysocolla has an attractive blue-green colour and is a minor ore of copper, having a hardness of 2.5 to 3.5. It is also used as an ornamental stone. It is typically found as glassy botryoidal or rounded masses and crusts, or vein fillings. Because of its light color, it is sometimes confused with turquoise. Commonly it occurs only as pourous crusts unsuitable for gem use, but high quality, gem grade chrysocolla can be translucent and is highly prized.
The name comes from the Greek chrysos, “gold”, and kolla, “glue”, in allusion to the name of the material used to solder gold, and was first used by Theophrastus in 315 BCE.
Notable occurrences include Israel, Democratic Republic of Congo, Chile, Cornwall in England, and Arizona, Utah, New Mexico and Pennsylvania in the United States.

from: Wikipedia

Artwork Comments

  • JUSTART
  • Aileen David
  • Mike Oxley
  • Aileen David
  • stephaniek
  • Aileen David
  • sfmilner
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