What is a bluish green rock?

Amazonite is a trade name used for a green to bluish green to greenish blue gem material that is made into cabochons, beads, and tumbled stones. It is a color variety of microcline, a potassium-rich member of the feldspar mineral group.

What precious stones can be found in Colorado?

Other notable gem-quality minerals that have been found in Colorado include garnet, tourmaline, lapis lazuli, quartz crystal, smokey and rose quartz, amethyst, turquoise, peridot, sapphire, and zircon. Agate, chalcedony, and jasper, three varieties of cryptocrystalline quartz, are also found in many places.

What kind of rocks can I find in Colorado?

Colorado’s crystalline rocks are Precambrian-aged igneous and metamorphic (granite, gneiss, schist), as well as Tertiary aged volcanic and igneous intrusive (granite, pegmatite).

What is the name of a blue rock?

Blue Gemstone Identification

Can garnets be blue?

Garnet species are found in every colour, with reddish shades most common. Blue garnets are the rarest and were first reported in the 1990s.

Are there diamonds in Colorado?

A close-up of colorful Colorado diamonds. Under grubby soils of northern Colorado lies the nation’s biggest diamond deposit. Its crystalline bounty was almost found by accident. In the late 1960s Colorado State University geologists were studying some rather unusual, crumbly rocks northwest of Ft.

What kind of gemstones are found in Colorado?

If you go to a mineral show and see nice green amazonite crystals clustered with a couple crystals of smoky quartz, that specimen was probably collected in Colorado. The amazonite-smoky quartz clusters from Pikes Peak and a few other Colorado locations are very popular and often very valuable specimens.

Where can you find blue crystals in Colorado?

Though in recent decades, more high-quality crystals have continued to be turned up in Colorado, primarily from the Pike’s Peak area. Here the beautiful blue crystal formations, there shape being somewhat unique to Colorado, are found associated with Smoky Quartz Crystals in coarse granite or pegmatite.

What kind of rock is the state rock of Colorado?

The state rock is marble from Yule. The state fossil is the Stegosaurus. Apache Tears, properly known as black obsidian (Ruby Mountain in Chaffee County), were named for the Indian legend that they are the petrified tears of Apache women mourning the slaughter of their men in battle.

Which is the most rare mineral in Colorado?

In 2002, rhodochrosite was named the Colorado state mineral. Now closed, the Sweet Home mine in Alma, CO once produced the highest quality rhodochrosite in the state. Though other mines actively produce this collector’s mineral, it remains relatively rare. Its deep red color is stunning even in its natural state. Gem cutters rarely cut this gem.