Polished Amethyst Slice The matrix associated with opal

The matrix associated with opal can be almost any visible color

Thousands of years ago

Here is an eye-catching example of almandine garnets settled nicely into a schist matrix

May contain traces of nuts

Polished Amethyst Slice The matrix associated with opalTalk about one beautiful slice of amethyst crystal! The colors in this specimen are just amazing. You can truly see every level of mineral growth. Size: 3. 7 x 2. 9 x 0. 2 in. Weight: 2. 8 oz Location: Brazil Amethyst is arguably the most popular mineral known to man. Many people are familiar with the beauty of its purple hues. Amethyst is a variation of quartz that contains trace amounts of iron. When the mineral is exposed to radioactive gamma rays,