Search results
Results from the WOW.Com Content Network
Moonstone is a sodium potassium aluminium silicate ((Na,K)AlSi 3 O 8) of the feldspar group that displays a pearly and opalescent schiller. [ 1 ] [ 2 ] An alternative name for moonstone is hecatolite [ 2 ] (from goddess Hecate ).
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more
For example: it is somewhat brittle and is soft enough to possess scratches after normal use in jewelry; it is usually internally flawless and completely colorless (whereas most diamonds have some internal imperfections and a yellow tint); its SG (5.6–6) is high; and its reaction under ultraviolet light is a distinctive beige.
Jewellery design is the art or profession of designing and creating jewellery. It is one of civilization's earliest forms of decoration , dating back at least 7,000 years to the oldest-known human societies in Indus Valley Civilization , Mesopotamia , and Egypt .
The 'I' of the I 1, and I 2 grades originally stood for "Imperfect". [2] During the 1970s, two changes were made to the system. Firstly, the Internally Flawless grade was added, as GIA noticed that many diamonds were being aggressively cut to remove any surface blemishes, and thereby reducing the cutting quality ("make") of the diamonds. [2]
Easotope software archives, organizes, and analyzes mass spectrometer data. It is currently oriented toward clumped CO 2 analysis but is also useful for bulk CO 2 work and expandable to other isotopic systems. El-MAVEN Open-source Desktop software by Elucidata processes labeled LC-MS, GC-MS and LC-MS/MS data in open-formats (mzXML, mzML, CDF).
Mercury 2.0 launched in 2008, with additional tools to interpret and compare packing trends in crystal structures. Mercury version released in 2015 and later provides an additional functionality to generate 3D print. [6] The current Version 4.0 of Mercury developed its visual interface up to a greater extent by comparing with its old versions. [2]
The design of the sandakada pahana of the Polonnaruwa period differs largely from that of the Anuradhapura period. The single band that was used to depict the four animals was removed, and processions of the elephant, lion and horse were depicted in separate bands. The most significant change is the removal of the bull from the sandakada pahana ...