If you are fortunate enough to be born in February, amethyst is your birthstone. This wonderful member of the quartz family often forms large, six-sided crystals.
Bixbite in Rhyolite
Bixbite in rhyolite comes from the Ruby Violet Mine in the Wah Wah Mountains of Utah.
Named for its calcium content, calcite is one of Earth's more abundant minerals-- you've probably seen it many times and not known exactly what it was. It is found in marble and limestone, as well as other rocks used in industrial settings.
Dolomite is a white to brownish and sometimes pink-colored mineral named for French mineralogist Dodat Gratet de Dolomieu in 1791.
Kunzite is the pink to violetish purple variety of spodumene. The stone gets its color from trace amounts of manganese
Malachite is generally opaque and comes in a vivid bluish green to green color. It is usually banded in two or more tones of green and may have a subtle sheen.
August's birthstone, peridot, is a relatively inexpensive, beautiful gem with a pedigree dating back as far as early Egyptians.
Hear the word "garnet," and what invariably comes to mind is the image of the deep red pyrope garnets belonging to the pyralspites family.
One of nature's more exotic treasures, rhodochrosite is a manganese carbonate that gets its name from two Greek words: "rhodon," meaning rose and "chros," meaning color.
September's birthstone has come a long way since the days when any and every blue stone was called a sapphire.
A gem known since ancient times, sunstone is a type of feldspar formed and crystallized in lava flows.
With greater dispersion than diamond, sphalerite is an intriguing, yet challenging, gem. Known primarily to collectors due to its lack of hardness, sphalerite can try the patience of even the most highly skilled lapidaries who dare to fashion it into a finished gem.
The term triphane originated as another name for spodumene, but more recently has been used in reference to colorless to light yellow transparent spodumene.
Once proposed to be the national gemstone of the United States, tourmaline is found all over the world and in a variety of colors.