(eBook) Gemstones And Their Origins [Download]

Language: en
Pages: 315

Gemstones and Their Origins

Authors: P.C. Keller

Categories: Science

Type: BOOK - Published: 2012-12-06 - Publisher: Springer Science & Business Media

Each gem deposit-whether of primary origin in the parent rocks; or secondary as alluvial placers in valley floors, river gravels, or the sand of oceanic shelves

Language: en
Pages: 298

Arab Roots of Gemology

Authors: Aḥmad ibn Yūsuf Tīfāshī

Categories: Crafts & Hobbies

Type: BOOK - Published: 1998 - Publisher: Scarecrow Press

DOWNLOAD EBOOK

Samar Najm Abul Huda's translation of Ahmad ibn Yusuf al Tifaschi's study of gems. Born in 1184, Al Tifaschi first learned about gems from his father, and augme