Dictionary of Gems and Gemology

Biduri laut

Akuamarin atau Biduri laut adalah jenis beryl berwarna biru pucat hingga hijau muda.

Spenger's Fresh Fish Grotto

Spenger's Fresh Fish Grotto is a historic building and was a seafood restaurant active from 1890 to 2018, at 1919 4th Street in Berkeley, California.

Havaíto

Havaíto, ou hawaiito, é uma rocha vulcânica máfica e afanítica da família dos basaltos caracterizada pela sua riqueza em olivinas.

Batu unam

Unam atau oniks erutama mengacu pada varietas kalsedon berpita paralel, mineral silikat.