1,000 producten gevonden in Mineralen Kristallen Edelstenen

All My Stones and Minerals Shit

This useful rock collecting planner is a must-have for anyone that loves collect…

The essential illustrated rocks and minerals guide…

Minerals and Gemstones is an accessible and informative reference guide to 30…

Since "Gemmology" was published, readers have used it to gain an in-depth apprec…

Chemie achter de dijken laat zien dat chemie een vak is met velerlei toepassinge…

A method of treating a kaolin particulate material to improve its properties by …

A handy guide identifying over 170 types of the world’s gemstones with beau…

The scandals, mysteries, and human stories behind the world’s greatest gems…