Gemstones – Shades of Blue
When most people think about a blue gemstone, Sapphire is usually the first gemstone to come to mind, but there are a large number of other blue gemstones available today. Natural blue gemstones come in a number of various colors, from dark to light. Currently, lots of blue gems are [...]

Gemstones – Shades of Green
Green presents the most choices in colored gemstones, though many of the finest green gems — such as Emerald, Jade, and Demantoid and Tsavorite Garnet — are quite rare and expensive. Green hues are mainly due to traces of Chromium, Vanadium or Iron. Green gemstones range in color from the [...]

Best in Castle Rock for Jewelry
Press Release FOR IMMEDIATE RELEASE Robert Michael Gems & Jewelry, LLC Receives 2016 Best of Castle Rock Award Castle Rock Award Program Honors the Achievement CASTLE ROCK May 19, 2016 — Robert Michael Gems & Jewelry, LLC has been selected for the 2016 Best of Castle Rock Award in the [...]

Colorado Gem & Mineral Locations
There are over 774 gems and mineral localities in Colorado.  Here’s a list of key locations and the material that can be found (Source: Rocks and Minerals, July 2002) . Stoneham – Barite State Line Diamond District Red Feather Lakes – Amethyst Devils Head – Smoky Quartz, Clear White Quartz, Citrine [...]

Mining Field Trips
The best way to go on a gem, mineral or fossil dig is to join one of the 8 gem and mineral clubs in the Denver Metro area.  Annual membership for the entire family is usually less than $25.  Each club schedules several mining field trips in Colorado each summer.  [...]