Acquisition of the month: Japanese twin quartz
I recently added a fine specimen of a Japanese-law quartz twin to my collection from the Ambolo Quartz Mine in Madagascar. This crystallographic peculiarity is…
Tag: quartz
Live session #24 Amethyst
Recorded live session from the Crystal Museum Borculo. I show all kinds of examples of the well-known mineral amethyst, a purple variety of quartz. Featured…
Live session #3 Quartz
Recorded live session in which I discuss and show examples of 10 different types of the mineral quartz! Featured are: rock crystal, smoky quartz, citrine,…
Live session #4 Quartz growth forms
Recorded live session in which I discuss and show examples of different growth forms of the mineral quartz! Topics covered include: basic crystal forms such…
Live session #21 Agate
Recorded live session in which I discuss and show examples of the colorful mineral agate. Agate is a banded variety of chalcedony, which in turn…