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Chrysocolla color stone basic properties table

Name Origin In Greek Chrysos means golden and kolla means glue. This name was applied to a material used by the Greeks
in soldering metals. Eilat Stone takes its name from Eilat, Gulf of Aqaba, Red Sea.
Chemical Formula (Cu, Al)2 H2Si2O5(OH)4.H2O
Color Blue, green, and blue-green in various shades. Mixed with matrix of quartz and oxides of Cu, Fe, and Mn,
adding brown and black colors.
Occurrence
In the oxidized zone of copper deposits. Maybe mixed with copper carbonates such as malachite and turquoise.
Hardness 2 - 4 on Mohs Scale
Crystal System Monoclinic. Crystals are microscopic, in aggregates; cryptocrystalline, opalline.
Cleavage None. Fracture uneven to conchoidal. Very brittle
Specific Gravity (SG) 1.9 - 2.4
Luster Vitreous (if silicified). waxy, dull
Stone size
 Large masses of material, weighing several pounds, have been found
Streak
white to a blue-green color
Pleochroism None
Note: Chrysocolla often forms as a gel mixed with silica and hardens to a blue material that is basically a chrysocolla-saturated quartz. This material is very hard (7 on Moh's scale), wears well, and is often seen in jewelry. Chrysocolla mixed with malachite is often sold as Eilat Stone and comes from many localities; the color is blue to blue green. Stellarite us the trade name for a light blue mixture chrysocolla and quartz. Parrot-wing is a mixture of chrysocolla and jasper with brownish green color.
Chrysocolla stone
Chrysocolla color stone polished china
Chrysocolla color stone
Chrysocolla color stone Colorado USA
Chrysocolla stone
Eilat Stone Estrie Quebec Canada
Reference: Color Encyclopedia of Gemstones, Joel E. Arem, VNR publications, New York.
Photo Credit: www.shutterstone.com