Hemimorphite - China and Roman seals

and Roman seals

You will receive the amethyst specimen pictured

Spirit Amethyst

is a mineral formation that took place millions of years ago

The matrix is chlorite-muscovite schist

Hemimorphite - China and Roman sealsThis is a great example of botryoidal hemimorphite. Even though it is small in size, it has all the characteristics you want in a nice specimen. Most examples from this location are much bluer than this. This specimen gives you an idea of what a yellow or green piece of hemimorphite may look like. Hemimorphite is a zinc base silicate mineral, up to 54% zinc, that often forms tabular crystals. However, it can also grow in botryoidal patterns. Some