Where are garnet rocks found?

It is very important for industrial uses such as abrasives. In addition, yellow, orange and brown garnets have been mined since 2016 in the Harts Ranges near Alice Springs. Other significant garnet deposits in Australia are associated with volcanic or metamorphic rocks in, Queensland, and New South Wales.

What states have garnets?

Of the latter, four states have designated garnet as their official gem/mineral: Connecticut (by the 1977 General Assembly); Idaho (as of legislation of 1967, the star garnet is the official gemstone); New York; and Vermont (the grossular garnet is the official state mineral/gem).

What states can you find garnet?

Garnet mines and occurrences are located in 21 States, but the only presently active (2006) mines are in northern Idaho (garnet placers; one mine), southeastern Montana (garnet placers; one mine), and eastern New York (unweathered bedrock; two mines).

In what environment does garnet form?

Most garnet forms at convergent plate boundaries where shale is being acted upon by regional metamorphism. The heat and pressure of metamorphism breaks chemical bonds and causes minerals to recrystallize into structures that are stable under the new temperature-pressure environment.

Where is blue garnet found in the US?

Montana Gemstones They occur in a wide range of colors which include blue, blue-green, green, pink, pale red, purple, yellow, and orange (colors often produced by heat treatment). Some gem-grade garnets are also produced from the alluvial deposits. Rockhounds in many parts of Montana enjoy looking for agate and jasper.

Are garnets found in the US?

How much is a garnet worth?

How Much Does a Real Garnet Cost? Prices for real garnets of valuable green, orange, and purple colors, range from $500 per carat for the stones with inclusions and up to $7,000 for clean larger stones of the best color. Heavily included common red garnet can be purchased for $20 for 100 grams of raw material.

Can you find garnets in the United States?

The United States Geological Survey reports that notable quantities of gem-quality agate, beryl, coral, diamond, garnet, feldspar, jade, jasper, opal, quartz, ruby, sapphire, shell, pearls, peridot, topaz, tourmaline, turquoise, and other gem materials are currently produced in the United States.

Are Tiny garnets worth anything?

Found mainly in small sizes, tsavorites over 2 carats are very rare. Prices range from $500 a carat for good colors with some inclusions, to $2,000 to $7,000 for clean larger stones with top color. Demantoid garnet is the rarest and most valuable of the garnets and is one of the rarest of all colored gemstones.

Which state produces the most gems?

A quarter of the states produce the majority of the gemstones in the country. In decreasing order of production value, Idaho, Arizona, Oregon, California, Montana, Arkansas, Maine, Colorado, North Carolina, Nevada, Texas and Utah produced 90 percent of the U.S.’s natural gemstones last year, the USGS said.