Description:
Peridot is a gem-quality olivine and a silicate mineral. Its green color is dependent on the iron contents within the structure of the gem. It is the birthstone associated with August.
Description:
A ruby is a pink to blood-red gemstone, a variety of the mineral corundum. The word ruby comes from ruber, Latin for red. It is the birthstone associated with July.
Description:
Aquamarine (from Latin: aqua marina, “sea water”) is a blue or cyan variety of beryl. It is the birthstone associated with the month of March.
Description:
Emerald is a gemstone and a variety of the mineral beryl, colored green by trace amounts of chromium and sometimes vanadium. It is the birthstone associated with the month of May.
Description:
Galena, also called lead glance, is the natural mineral form of lead(II) sulfide. It is the most important ore of lead and an important source of silver.
Description:
Stibnite, sometimes called antimonite, is a sulfide mineral with the formula Sb2S3. It is the most important source for the metalloid antimony.