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The dial is suspended from a cord or chain; the suspension point on the vertical meridian ring can be changed to match the local latitude. The time is read off on the equatorial ring; in the example below, the center bar is twisted until a sunray passes through a small hole and falls on the horizontal equatorial ring.
Gemstone meanings are inspired by everything from royal traditions and chakras to ancient cultures and spiritual thoughts. “The myriad of colors of gemstones alone transmit energy via the ...
Painite is a very rare borate mineral.It was first found in Myanmar by British mineralogist and gem dealer Arthur C.D. Pain who misidentified it as ruby, until it was discovered as a new gemstone in the 1950s.
Urania (/ j ʊəˈr eɪ n i ə / yoor-AY-nee-ə; Ancient Greek: Οὐρανία, romanized: Ouranía; modern Greek shortened name Ράνια Ránia; meaning "heavenly" or "of heaven") was, in Greek mythology, the muse of astronomy and astrology. Urania is the goddess of astronomy and stars, her attributes being the globe and compass.
A geode of chalcedony richly colored by hematite that gives it its rusty hues and marks it as Akik [contradictory]. Aqeeq, akik or aqiq (Arabic: العقيق) means quartz in Arabic, and agate in Turkish, however in the context of rings usually refers to a ring set with a chalcedony stone.
Kaustubha, featured in the top-left under the crescent. Kaustubha (Sanskrit: कौस्तुभ, romanized: Kaustubha, lit. 'crest jewel') is a divine ruby or ratnam (gem) in Hindu mythology. [1]
Gemstones are basically categorized based on their crystal structure, specific gravity, refractive index, and other optical properties, such as pleochroism. The physical property of "hardness" is defined by the irregular Mohs scale of mineral hardness. Gemologists study these factors while valuing or appraising cut and polished gemstones.
The collection contains works published from 1496 to the present, encompassing the history and modern development of gemology. Subjects include natural and synthetic gemstones, gem treatments, jewelry design, manufacturing, and marketing. The Liddicoat Library is open to the public and the jewelry trade for on-campus research.