Hyalite Opal (Opal-An), Erongo Mountains, Namibia

Hyalite opal is almost always bright green and can be found all over the world. The opal from the Erongo Mountains in Namibia, however, is among the brightest. Here's a nice four inch piece shown in SW and natural. Note that the exposure is set for the individual rock; if exposed similarly to other specimens, this guy would appear as a bright green blob.

8 views0 comments

Email comments or suggestions:


Nature’s Rainbows is a non-commercial web site maintained entirely by volunteer hobbyists and contributors.  Our mission is to provide information about UV and luminescence, premium fluorescent mineral photos, and a fluorescent mineral database for the enjoyment of FL mineral collectors around the world.  Information on this web site is covered under a Creative Commons License.

Feel free to contact us with comments and suggestions.

Like us on Facebook!

  • reddit
  • Facebook Social Icon

Subscribe to our RSS (Real Simple Syndication) feed to get new posts delivered directly to your desktop!