Scapolite-cats-eye is a chatoyant variety of scapolite family. Cats Eye effect is caused by needle- or rod-like inclusions preferentially oriented parallel to the optical axis of the scapolite crystal. Mostly, That needles contain iron and sulfur as the main elements.
The sharp chatoyant of scapolite has good demand in the market. Also, Scapolite cats eye value depend on its colour, chatoyant sharpness, cabochon cutting quality, clarity, lustre and etc. Chocolate brown and coffee brown colour scapolite cats eye are the most popular colour stone among buyers.
The scapolites are a group of rock-forming silicate minerals composed of aluminium, calcium, and sodium silicate with chlorine, carbonate and sulfate. Named in 1800 by José Bonifácio de Andrada e Silva from the Greek ζκαποζ meaning “a shaft” in allusion to the long prismatic habit of the crystals.
Also, Scapolites can be found in Sri Lanka, Afghanistan, Australia, Antarctica, Austria, Belgium, Botswana, Brazil, Bulgaria, Canada, Chile, China, Cuba, Czech Republic, Finland, Congo, Denmark, Germany, Iran, Italy, India, Japan, Kenya, Madagascar, Lithuania, Morocco, Mozambique, Myanmar, Namibia, New Zealand, Nepal, North Korea, Norway, Pakistan, Peru, Philippine, Portugal, Romania, Russia, Spain, Tanzania, Turkey, UK, USA, UAE.
Most of the scapolites are chatoyant and known as “scapolite cats-eye”. The two endmembers are meionite and marialite. Meionite mostly can be seen in white Colour and marialite in yellow colours. Silvialite (Ca, Na)₄Al₆Si₆O₂₄) is also a recognized member of the group.
¶ Luster: Vitreous
¶ Hardness: 5 – 6
¶ Mineral class: Scapolite
¶ Transparency: Opaque, Translucent, Transparent